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Do you want to grow plants year-round? The Riga 4 from Hoklartherm is the perfect greenhouse for those who need to grow plants year-round and enjoy an extra space that can serve as living quarters or an extended family room. The Riga 4 greenhouse is designed for year-round, whether you're growing fresh vegetables or herbs. 

Are you worried about looking for a spacious greenhouse that can fit into a smaller area? Gardening has never been easier with the Riga 4 Greenhouse. Now you can have a designated area for storing everything inside, not just your plants! The spacious interior means that taller gardeners will no longer need to bend down to maintain optimal headroom when working outside their shed or greenhouse, making gardening more enjoyable than ever. This feature also creates room to add more shelves and gives more space for climbing plants

Are you skeptical about the quality of buying an expensive greenhouse? Made from the most robust, smooth finished anodized aluminum frame/profiles and durable hardware, this is the most potent greenhouse for residential settings. German-made Polycarbonate is the preferred type of glazing for this greenhouse. It offers superior quality to other standard options, such as Poly-Gal or GE Glazing windows. This gothic arch-style greenhouse has automatic roof windows that open without electricity. out there

Are you worried about your greenhouse being able to withstand harsh climatic conditions? This greenhouse's German engineering and unique 'onion' shape can withstand heavy snow and extreme wind. Due to gravity, the 'onion shape' doesn't let the snow accumulate on the roof but allows it to slide down to the ground. One significant advantage of Riga's construction method is that the frame profiles are permanently attached and won't come loose over time due to wind pressures. Imagine relishing your favorite herb, plucked freshly from your greenhouse, in adverse growing conditions.

Are you worried about having a steady temperature year around? The durable, UV-protected 8mm and 10 mm twin-wall Polycarbonate of this greenhouse will ensure that you have excellent insulation in the harshest climates. The heavy-duty rubber seal between framing & panels won't let wind inside, so it's easier to keep a steady temperature all year round. The Dutch barn-style door provides an excellent airflow as you open it. The large rear window opens or closes automatically depending on how warm it feels inside - keeping your plants happy in any weather.

Features & Benefits of Hoklartherm Riga 4 Greenhouse

  • Sturdy "onion"-shaped construction that withstands large amounts of snow and strong winds.
  • Sidewall material/thickness: 8mm UV-coated twin-wall Polycarbonate
  • Gable material/thickness: 10mm UV-coated twin-wall Polycarbonate
  • Frame material: Smooth finished anodized aluminum
  • First-class insulation:
    • Heavy-duty rubber seals and silicone caulking to seal windows
    • High-quality construction with tightly fitted parts
    • R-value: 3.0
  • Door: 1x wide, heavy-duty Dutch barn style door (30in wide x 79in high), handle with key lock.
  • Roof vents: 2x roof windows (40in wide x 24in length) with an automatic opener that works without electricity
  • 1x sizeable rear wall window (30in wide x 42in long), which allows for cross ventilation
  • Wind tolerance: 120 mph with 3-second gusts
  • Snow capacity: 30 PSF ground snow load
  • Included in the Riga 4 Greenhouse Kit:
    • Profiles, glazing, rubber seals, and hardware
    • 2x roof vent with automatic opener
    • 1x barn-style door
    • 1x rear wall window
    • Assembly instructions 
  • Optional accessories:
    • 6" high foundation frame: If you add this, you don't need a concrete or wooden footer. This foundation frame will attach to the bottom of the greenhouse frame and goes into a trench to anchor the whole greenhouse.
    • Premium kit: See details below
    • Door extension kit: Set your greenhouse on a 20-inch stem wall. This kit gives you the missing pieces of Polycarbonate (+ profiles) that go above the doors. It includes 2x extensions for both doors.
  • Rainwater gutter system: No (not possible because of the greenhouse shape)
  • Expandable: No
  • Frame color: Aluminum/silver
  • Side wall height (curve): 6ft 1in near high shelves
  • Peak height (interior): 7ft 6in
  • Floor space: 135 sq. ft.
  • Dimensions: 9ft 8in wide x 14ft long x 7ft 7in high
  • Assembly time: 2 people – 1 day; 3 people – 6-8 hours
  • Warranty:
    • Twin-wall Polycarbonate: 10 years (prorated after five years)
    • Frame: 15 years
  • Made in Germany

Shipping information:

  • Greenhouse ships in 3 boxes, and premium kit ships in 4 packs.
  • This product is delivered via LTL, which is curbside delivery only.
  • The driver will be using a pallet jack and liftgate to slide the crate off and will need help from the customer with unloading the framing cartons.
  • We recommend having a couple of people there for the delivery.

Made in Germany with 30 years of experience!

The RIGA is a beautiful and stylish addition to your home landscape. It is made from high-quality materials that will last for years with proper care, making it the strongest greenhouse in its category. With Riga Greenhouse, you get everything you are looking into a greenhouse: Strength! Style! Affordability.

Riga IV Greenhouse Additional Accessories

Upgrade any RIGA Greenhouse with these optional accessories.

Riga 4 Greenhouse Premium Kit

Includes the following Accessories:

  • Riga 4 Greenhouse
  • Riga 4 Greenhouse Foundation frame
  • 10in deep top shelf (attached to greenhouse side)
  • 24in regular deep rack (hanging from the roof to provide more stability & space)

Riga 4 Greenhouse Door Frame Extension Kit

If you want to raise your door because you set your Riga 4 greenhouse on a stem wall, you can buy a door extension kit that will increase the height by 20 inches.

Heavy Duty Seed Trays

These polypropylene black seeds trays are made in Germany and are perfect for starting seeds in your Riga 4 greenhouse. They are 24 inches long x 16 inches wide x 3.5 inches deep.

Staff Recommendations:

  • Note: Please be sure to check your local building code for any required permits
  • All Hoklartherm Riga 4 Greenhouses are specially ordered and individually inspected, and packed with a 1 to 4-week lead time depending on inventory levels, so returns are expensive; please let us know if you have any questions at all
  • Product Assembly usually takes just one weekend with two people (three is preferable) with ordinary household tools as there are no eaves and relatively few connections
  • Maintenance-free design means the Riga only needs occasional washing with a garden hose and recommended annual tightening of all nuts and

About Hoklartherm GmbH

Hoklartherm GmbH was founded in 1982 by an engineering graduate named Werner Hollander, who had built the prototype for his family's garden. The company began as a maker of arched greenhouses, and since then, their unique Riga design has remained popular!

The Riga 4 Greenhouse has been designed to be largely resistant against snow and strong enough so it can withstand harsh winters. The frames are engineered for durability, while the commercial-grade polycarbonate panels add extra protection from cracking under pressure in cold weather conditions. Hoklartherm now makes beautiful and unique pavilions, which have been widely installed throughout Europe in parks, commercial settings, and luxury private gardens.

About Exaco Trading Co.

The family-owned Exaco Trading Co., which began in 1987 as an importer and distributor of the Exomixer home paint mixing accessory (a product they continue to make), has grown considerably over time. Their line includes many different products, including some great greenhouses from Europe!

Free Shipping We offer Free Shipping over $100

   

Most products ship within 1 to 3 business days from the date of your order (unless indicated on the product page). Some items take a bit longer to ship since they are built to order (i.e., Timber Grow Lights, ChilLED Tech, Trimmers, etc). We will send you tracking information as soon as it is available.

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

Every transaction at ShopGrowSpaces.com is guaranteed to be safe.

This site uses SSL encryption technology that so that you never have to worry about credit card safety.

Statistically online purchases are safer than using your credit card at a department store or a gas station.  Experts have shown that online purchases are far safer than in person credit card transactions because the information is immediately encrypted into a scrambled message that can only be decrypted by an authorized computer.

Still don’t want to use your credit card on the World Wide Web?

We’ve got you covered! Simply call us at +1 (307)-284-3072 and we will gladly help you place your order.

We know you have a choice in online shopping, and we want to do all that we can do to earn your business. We not only want to earn it, but we want to keep it as well!. Here are the top reasons to buy from ShopGrowSpaces.com 

Manufacturer Direct
As an online based store, we ship directly from our wholesaler warehouses, which means we can pass the savings directly to our customers.

Lowest Prices Guaranteed
We work tirelessly to ensure we have the lowest prices in the online market for our range of products. We're that confident that we'll beat any competitor's price by 10%. Check out our Best Price Guarantee policy.

Fast Dispatch
Orders are dispatched usually within 2 business days(post order processing & handling). You'll get an email confirmation of shipping with tracking ID when your order leaves our warehouse.

Secure Payments
Our online store is Shopify-based with SSL Encryption on all our pages, content and data. This simply means you're always safe when shopping with us.

12-24 Month Manufacturer's Warranty
All our products come with a 12-24 month manufacturer's warranty.

Dedicated Customer Support
Our dedicated team of specialists are available 7 days a week to answer your queries. Talk to us by phone, email or live chat!


DELIVERY

Please note that shipping charges includes delivery to the front of your house only. Please consider planning ahead if the items you order are heavy/large to get them to their desired location.

We ShopGrowSpaces wants you to feel confident that you are getting the absolute best price for the product you are ordering.

We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within 30 days of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within 30 days of your purchase date will refund the difference as well.

To request your partial refund, simply e-mail us a link to the same product on our website, or on our competitor's website, within 30 days from the date of your order and we will process the credit accordingly.

Our 100% Price Guarantee has some limitations:

  • You must purchase the item from our website before requesting your Price Match Guarantee
  • Promotions such as rebates and "buy one, get one free" offers are not eligible
  • The item must be in stock on the competitor's website
  • The competitor must be an online store, they may not have a retail location
  • The website can not be a discounter or auction website (ie; eBay, overstock, Walmart, Amazon, etc..)
  • The competitor must be an Authorized Retailer of the product in question
  • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

LOWEST PRICE GUARANTEE TERMS:

CLAIM

You will be required to provide the following information:

  • Proof of guarantee: 
    Your Shopping Guarantee number and your email address used during the eligible transaction. The Shopping Guarantee number is provided to you on the order confirmation page from your merchant or the Certificate of Guarantee email.
  • Details about the transaction: 
    Web site where the eligible purchase was made, date of purchase, amount paid, description of the item and SKU (if applicable). This information is typically included in the purchase confirmation email you received from the merchant.
  • Proof of lower price:
    We recommend that you send us a screenshot and the URL of the same item you purchased, showing the new price. We cannot accept printed materials, or email text as proof of the lower price.

All claims must be made by sending an email to PriceClaim@NortonShoppingGuarantee.com. Our staff will verify your claim within 10 business days. We reserve the right to contact you and the merchant in order to get more information. All claims must be made in English.

SERVICE CONDITIONS AND LIMITATIONS

  1. You must make a claim following the instructions above. We will review such claim for completeness and legitimacy, and, if approved, will make payment directly to you.
  2. Lowest Price Guarantee, when included with the Norton Shopping Guarantee you receive, is available only as follows:
    • To be eligible, the value of a claim must be greater than $5 USD, but may not exceed $100 USD. per transaction. The maximum amount that you can claim in any 12-month period is $200 USD.
    • The price reduction must be on the same item, with the same item SKU (if applicable), offered for sale on the same merchant's Web site, under the same merchant terms and conditions.
    • For ticket purchases, such as sporting events, shows, concerts, etc., the price reduction must be for the same date and time, same show, same venue, and same quantity of tickets. Seats must be in the same section and in the same row or better.
    • Lowest Price Guarantee does not apply to any of the following:
        • Any item to which a volume discount, a coupon, a bundling arrangement (such as two-for-one), a customer rebate, an inventory liquidation, "Closeout Sale", "going out of business", "free offer", "CyberMonday", "Deal of the Day" promotion or other similar special promotional pricing mechanism is applied.
        • Shipping, handling, taxes, surcharges, and any other similar fees.
        • Any currency fluctuation. All claims will be reviewed in US dollar only as priced on the merchant's Website.
        • Any partial, incomplete or cancelled orders, or any order for which a Purchase Guarantee claim has been submitted.
        • One-of-a kind items (including antiques, artwork, rare coins and furs).
        • Limited edition items.
        • Services and additional costs (such as installation charges, extended or supplemental warranties, or memberships).
        • Used, altered, rebuilt and refurbished items.
        • Custom-built items.
        • Land and buildings.
        • Negotiable instruments (such as promissory notes, stamps and travelers checks).
        • Items provided under a leasing arrangement.
        • Cash or cash equivalent.
        • Items that do not have a standard SKU will not be eligible for Price Guarantee.elec

        Description

        Do you want to grow plants year-round? The Riga 4 from Hoklartherm is the perfect greenhouse for those who need to grow plants year-round and enjoy an extra space that can serve as living quarters or an extended family room. The Riga 4 greenhouse is designed for year-round, whether you're growing fresh vegetables or herbs. 

        Are you worried about looking for a spacious greenhouse that can fit into a smaller area? Gardening has never been easier with the Riga 4 Greenhouse. Now you can have a designated area for storing everything inside, not just your plants! The spacious interior means that taller gardeners will no longer need to bend down to maintain optimal headroom when working outside their shed or greenhouse, making gardening more enjoyable than ever. This feature also creates room to add more shelves and gives more space for climbing plants

        Are you skeptical about the quality of buying an expensive greenhouse? Made from the most robust, smooth finished anodized aluminum frame/profiles and durable hardware, this is the most potent greenhouse for residential settings. German-made Polycarbonate is the preferred type of glazing for this greenhouse. It offers superior quality to other standard options, such as Poly-Gal or GE Glazing windows. This gothic arch-style greenhouse has automatic roof windows that open without electricity. out there

        Are you worried about your greenhouse being able to withstand harsh climatic conditions? This greenhouse's German engineering and unique 'onion' shape can withstand heavy snow and extreme wind. Due to gravity, the 'onion shape' doesn't let the snow accumulate on the roof but allows it to slide down to the ground. One significant advantage of Riga's construction method is that the frame profiles are permanently attached and won't come loose over time due to wind pressures. Imagine relishing your favorite herb, plucked freshly from your greenhouse, in adverse growing conditions.

        Are you worried about having a steady temperature year around? The durable, UV-protected 8mm and 10 mm twin-wall Polycarbonate of this greenhouse will ensure that you have excellent insulation in the harshest climates. The heavy-duty rubber seal between framing & panels won't let wind inside, so it's easier to keep a steady temperature all year round. The Dutch barn-style door provides an excellent airflow as you open it. The large rear window opens or closes automatically depending on how warm it feels inside - keeping your plants happy in any weather.

        Features & Benefits of Hoklartherm Riga 4 Greenhouse

        • Sturdy "onion"-shaped construction that withstands large amounts of snow and strong winds.
        • Sidewall material/thickness: 8mm UV-coated twin-wall Polycarbonate
        • Gable material/thickness: 10mm UV-coated twin-wall Polycarbonate
        • Frame material: Smooth finished anodized aluminum
        • First-class insulation:
          • Heavy-duty rubber seals and silicone caulking to seal windows
          • High-quality construction with tightly fitted parts
          • R-value: 3.0
        • Door: 1x wide, heavy-duty Dutch barn style door (30in wide x 79in high), handle with key lock.
        • Roof vents: 2x roof windows (40in wide x 24in length) with an automatic opener that works without electricity
        • 1x sizeable rear wall window (30in wide x 42in long), which allows for cross ventilation
        • Wind tolerance: 120 mph with 3-second gusts
        • Snow capacity: 30 PSF ground snow load
        • Included in the Riga 4 Greenhouse Kit:
          • Profiles, glazing, rubber seals, and hardware
          • 2x roof vent with automatic opener
          • 1x barn-style door
          • 1x rear wall window
          • Assembly instructions 
        • Optional accessories:
          • 6" high foundation frame: If you add this, you don't need a concrete or wooden footer. This foundation frame will attach to the bottom of the greenhouse frame and goes into a trench to anchor the whole greenhouse.
          • Premium kit: See details below
          • Door extension kit: Set your greenhouse on a 20-inch stem wall. This kit gives you the missing pieces of Polycarbonate (+ profiles) that go above the doors. It includes 2x extensions for both doors.
        • Rainwater gutter system: No (not possible because of the greenhouse shape)
        • Expandable: No
        • Frame color: Aluminum/silver
        • Side wall height (curve): 6ft 1in near high shelves
        • Peak height (interior): 7ft 6in
        • Floor space: 135 sq. ft.
        • Dimensions: 9ft 8in wide x 14ft long x 7ft 7in high
        • Assembly time: 2 people – 1 day; 3 people – 6-8 hours
        • Warranty:
          • Twin-wall Polycarbonate: 10 years (prorated after five years)
          • Frame: 15 years
        • Made in Germany

        Shipping information:

        • Greenhouse ships in 3 boxes, and premium kit ships in 4 packs.
        • This product is delivered via LTL, which is curbside delivery only.
        • The driver will be using a pallet jack and liftgate to slide the crate off and will need help from the customer with unloading the framing cartons.
        • We recommend having a couple of people there for the delivery.

        Made in Germany with 30 years of experience!

        The RIGA is a beautiful and stylish addition to your home landscape. It is made from high-quality materials that will last for years with proper care, making it the strongest greenhouse in its category. With Riga Greenhouse, you get everything you are looking into a greenhouse: Strength! Style! Affordability.

        Riga IV Greenhouse Additional Accessories

        Upgrade any RIGA Greenhouse with these optional accessories.

        Riga 4 Greenhouse Premium Kit

        Includes the following Accessories:

        • Riga 4 Greenhouse
        • Riga 4 Greenhouse Foundation frame
        • 10in deep top shelf (attached to greenhouse side)
        • 24in regular deep rack (hanging from the roof to provide more stability & space)

        Riga 4 Greenhouse Door Frame Extension Kit

        If you want to raise your door because you set your Riga 4 greenhouse on a stem wall, you can buy a door extension kit that will increase the height by 20 inches.

        Heavy Duty Seed Trays

        These polypropylene black seeds trays are made in Germany and are perfect for starting seeds in your Riga 4 greenhouse. They are 24 inches long x 16 inches wide x 3.5 inches deep.

        Staff Recommendations:

        • Note: Please be sure to check your local building code for any required permits
        • All Hoklartherm Riga 4 Greenhouses are specially ordered and individually inspected, and packed with a 1 to 4-week lead time depending on inventory levels, so returns are expensive; please let us know if you have any questions at all
        • Product Assembly usually takes just one weekend with two people (three is preferable) with ordinary household tools as there are no eaves and relatively few connections
        • Maintenance-free design means the Riga only needs occasional washing with a garden hose and recommended annual tightening of all nuts and

        About Hoklartherm GmbH

        Hoklartherm GmbH was founded in 1982 by an engineering graduate named Werner Hollander, who had built the prototype for his family's garden. The company began as a maker of arched greenhouses, and since then, their unique Riga design has remained popular!

        The Riga 4 Greenhouse has been designed to be largely resistant against snow and strong enough so it can withstand harsh winters. The frames are engineered for durability, while the commercial-grade polycarbonate panels add extra protection from cracking under pressure in cold weather conditions. Hoklartherm now makes beautiful and unique pavilions, which have been widely installed throughout Europe in parks, commercial settings, and luxury private gardens.

        About Exaco Trading Co.

        The family-owned Exaco Trading Co., which began in 1987 as an importer and distributor of the Exomixer home paint mixing accessory (a product they continue to make), has grown considerably over time. Their line includes many different products, including some great greenhouses from Europe!

        Free Shipping

        Free Shipping We offer Free Shipping over $100

           

        Most products ship within 1 to 3 business days from the date of your order (unless indicated on the product page). Some items take a bit longer to ship since they are built to order (i.e., Timber Grow Lights, ChilLED Tech, Trimmers, etc). We will send you tracking information as soon as it is available.

        Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!

        Online Security

        Every transaction at ShopGrowSpaces.com is guaranteed to be safe.

        This site uses SSL encryption technology that so that you never have to worry about credit card safety.

        Statistically online purchases are safer than using your credit card at a department store or a gas station.  Experts have shown that online purchases are far safer than in person credit card transactions because the information is immediately encrypted into a scrambled message that can only be decrypted by an authorized computer.

        Still don’t want to use your credit card on the World Wide Web?

        We’ve got you covered! Simply call us at +1 (307)-284-3072 and we will gladly help you place your order.

        Why Buy From Us

        We know you have a choice in online shopping, and we want to do all that we can do to earn your business. We not only want to earn it, but we want to keep it as well!. Here are the top reasons to buy from ShopGrowSpaces.com 

        Manufacturer Direct
        As an online based store, we ship directly from our wholesaler warehouses, which means we can pass the savings directly to our customers.

        Lowest Prices Guaranteed
        We work tirelessly to ensure we have the lowest prices in the online market for our range of products. We're that confident that we'll beat any competitor's price by 10%. Check out our Best Price Guarantee policy.

        Fast Dispatch
        Orders are dispatched usually within 2 business days(post order processing & handling). You'll get an email confirmation of shipping with tracking ID when your order leaves our warehouse.

        Secure Payments
        Our online store is Shopify-based with SSL Encryption on all our pages, content and data. This simply means you're always safe when shopping with us.

        12-24 Month Manufacturer's Warranty
        All our products come with a 12-24 month manufacturer's warranty.

        Dedicated Customer Support
        Our dedicated team of specialists are available 7 days a week to answer your queries. Talk to us by phone, email or live chat!


        DELIVERY

        Please note that shipping charges includes delivery to the front of your house only. Please consider planning ahead if the items you order are heavy/large to get them to their desired location.

        Price Guarantee

        We ShopGrowSpaces wants you to feel confident that you are getting the absolute best price for the product you are ordering.

        We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within 30 days of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within 30 days of your purchase date will refund the difference as well.

        To request your partial refund, simply e-mail us a link to the same product on our website, or on our competitor's website, within 30 days from the date of your order and we will process the credit accordingly.

        Our 100% Price Guarantee has some limitations:

        • You must purchase the item from our website before requesting your Price Match Guarantee
        • Promotions such as rebates and "buy one, get one free" offers are not eligible
        • The item must be in stock on the competitor's website
        • The competitor must be an online store, they may not have a retail location
        • The website can not be a discounter or auction website (ie; eBay, overstock, Walmart, Amazon, etc..)
        • The competitor must be an Authorized Retailer of the product in question
        • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

        LOWEST PRICE GUARANTEE TERMS:

        CLAIM

        You will be required to provide the following information:

        • Proof of guarantee: 
          Your Shopping Guarantee number and your email address used during the eligible transaction. The Shopping Guarantee number is provided to you on the order confirmation page from your merchant or the Certificate of Guarantee email.
        • Details about the transaction: 
          Web site where the eligible purchase was made, date of purchase, amount paid, description of the item and SKU (if applicable). This information is typically included in the purchase confirmation email you received from the merchant.
        • Proof of lower price:
          We recommend that you send us a screenshot and the URL of the same item you purchased, showing the new price. We cannot accept printed materials, or email text as proof of the lower price.

        All claims must be made by sending an email to PriceClaim@NortonShoppingGuarantee.com. Our staff will verify your claim within 10 business days. We reserve the right to contact you and the merchant in order to get more information. All claims must be made in English.

        SERVICE CONDITIONS AND LIMITATIONS

        1. You must make a claim following the instructions above. We will review such claim for completeness and legitimacy, and, if approved, will make payment directly to you.
        2. Lowest Price Guarantee, when included with the Norton Shopping Guarantee you receive, is available only as follows:
          • To be eligible, the value of a claim must be greater than $5 USD, but may not exceed $100 USD. per transaction. The maximum amount that you can claim in any 12-month period is $200 USD.
          • The price reduction must be on the same item, with the same item SKU (if applicable), offered for sale on the same merchant's Web site, under the same merchant terms and conditions.
          • For ticket purchases, such as sporting events, shows, concerts, etc., the price reduction must be for the same date and time, same show, same venue, and same quantity of tickets. Seats must be in the same section and in the same row or better.
          • Lowest Price Guarantee does not apply to any of the following:
              • Any item to which a volume discount, a coupon, a bundling arrangement (such as two-for-one), a customer rebate, an inventory liquidation, "Closeout Sale", "going out of business", "free offer", "CyberMonday", "Deal of the Day" promotion or other similar special promotional pricing mechanism is applied.
              • Shipping, handling, taxes, surcharges, and any other similar fees.
              • Any currency fluctuation. All claims will be reviewed in US dollar only as priced on the merchant's Website.
              • Any partial, incomplete or cancelled orders, or any order for which a Purchase Guarantee claim has been submitted.
              • One-of-a kind items (including antiques, artwork, rare coins and furs).
              • Limited edition items.
              • Services and additional costs (such as installation charges, extended or supplemental warranties, or memberships).
              • Used, altered, rebuilt and refurbished items.
              • Custom-built items.
              • Land and buildings.
              • Negotiable instruments (such as promissory notes, stamps and travelers checks).
              • Items provided under a leasing arrangement.
              • Cash or cash equivalent.
              • Items that do not have a standard SKU will not be eligible for Price Guarantee.elec
              Hoklartherm Riga 4 Greenhouse (10X14)

              Hoklartherm Riga 4 Greenhouse (10X14)

              $6,999.00

              Quantity

              - +

              Premium Kit

              Customer questions & answers

              Ask a Question
              • Assembly Tips For Hoklartherm Riga 4 Greenhouses

                While the process of assembling a greenhouse might seem daunting, these Riga IV kits are designed to be assembled by people even with no prior building experience. Depending on your skill level, the size of the structure, and the number of options you order, putting together a kit can take two or three adults one full weekend. Many customers opt to hire a local handyman or contractor to simplify this process, and the affordable price of the kits makes it easy to do this. They can be readily found online at sites like AngiesList or HomeAdvisor. A version of the assembly manual is available as a PDF near the bottom of this page to give you a better idea of the process. Site Preparation - Customers often tell us that the trickiest part of the process is making sure that they have a good foundation upon which to build the structure. This foundation should extend around the perimeter of your greenhouse. It is ideal to have the foundation be as level and square as possible. Concrete pavers or pressure-treated wood with crushed stone is often used, though actually pouring concrete will give the most permanent installation. The greenhouse is designed to last for decades, and pressure-treated wood typically will fail well before that when used in outdoor applications, particularly in the ground. Exaco recommends that all the grass and weeds be removed from inside the greenhouse before assembly and that the area be covered with a weed control mat. Installing the greenhouse on a concrete slab may seem like an easier way to get started, but it's actually less than ideal, as the greenhouse floor should be free draining. Standing water on concrete can freeze easily in winter months, causing a slip hazard. And concrete slabs don't help regulate the temperature inside the greenhouse as well as other floors such as pea gravel, pine straw, riverbed stones, or just regular earth. Customers typically will create some sort of path down the middle of their greenhouse with flag stones, bricks, or even decking. The Hoklartherm Riga 4 Greenhouse (10 x 14 )greenhouse is made with serious growers in mind. Whether you are a keen gardener with plenty of space or a plant nursery, the Riga 4 is a wonderful greenhouse with a high specification that will last a lifetime.      

              • Is it easier to build this greenhouse by using the optional base?

                The optional foundation frame makes the anchoring of the greenhouse easier and without the use of concrete. To use the foundation frame you will need to dig a trench 5” deep the size of the perimeter of the greenhouse into which the foundation would be buried. If you do not want to use the foundation frame, the greenhouse will need to be anchored in some other way. The foundation frame won’t affect how the greenhouse is assembled.

              • How long does it typically take for the shipment to arrive?

                It usually takes about 2 weeks for your order to arrive. This unit ships from Texas. It takes 1-2 business days to package and then it ships to the shipping facility located nearest to you. The shipper then makes contact to schedule a delivery. Due to the high demand during this pandemic, we are running low on products, and shipping companies take longer than usual. Please, keep this in mind when ordering. We will send you a follow-up email if there is a longer waiting time for your order.

              • Where does this ship from and do you deliver to the house?

                This gets shipped from Austin, Texas. 
                This product is delivered via LTL which is curbside delivery only. You will need to work with the driver to unload the contents of the crate, leaving the crate on the truck. The exception would be if you have a forklift or tractor with long forks available, which can be used with the liftgate to lower the entire crate to the ground. We recommend having a couple of people there for the delivery.

              • Do the Riga greenhouses require maintenance?

                No routine maintenance is required. It is recommended to check annually that all nuts, bolts, and screws are still tight.

              • Can the units be enlarged later if I need to expand the greenhouse?

                No, they cannot. The roof beam and base profiles are one piece and cannot be extended.

              • What is the wind resistance rating?

                Due to its unique roof slope, strong winds are diverted over the roof of the Riga greenhouses. Additional wind resistance is provided through the 4 lateral support bars, which span from the front to the back of the greenhouse. The Riga L & XL is adequate to support 120 mph of wind (three-second gusts).

              • Do Riga Greenhouses need a heat source for the winter?

                The more plants you have, the more heat they will produce. So, it depends on how many plants you are planning to grow. In addition, it depends on what type of plants you want to grow, i.e. kale grows in cool temperatures, whereas tomatoes need more warmth. There might be times that the temperature may drop significantly for longer periods. Although the Riga provides great insulation, you have to decide whether you need a heater or not according to your own needs.

              • Is a shade cloth required?

                This is dependent on what you plan to grow. If you are planning to use the greenhouse to grow and house exotic plants during daytime temperatures in excess of 85-90º F, virtually any greenhouse will need some kind of shade cloth and or misting system in order to keep temperatures down.

              • What is the weight capacity for the Riga shelving (9″ and 15″)?

                The shelf strength depends on the frame. If the frame that the shelving is attached to is too weak, the frame will bow outwards. In the Riga, 150lbs is about the maximum weight capacity.

              • Can I install an electric fan?

                Yes, simply cut the required hole with a utility knife in the polycarbonate glazing either in the back or front walls. No fan is included with Riga greenhouses but it can be added additionally.

              • How does the automatic window opener work without electricity?

                A special cylinder filled with paraffin oil expands and contracts in response to temperature changes. This pushes the window open when it gets hot inside and closes the window when it cools down. The temperature range is adjustable.

              • Can the Riga be assembled in the winter, as in can the panels handle being “bent” during assembly when they are cold?

                Yes, but everything will be stiff. It is recommended to keep the panels inside (warm) and only bring them out when needed during the assembly process.

              • How long does the greenhouse take to assemble?

                Assembly time depends upon the number of people assisting, how many shelves are added, if a foundation frame is added, and on personal assembly skills. The assembly time takes from 6 hours to a day (or more) depending on these factors and does not include ground preparation time.

              • Do you recommend a cement foundation?

                Cement foundations hold a lot of heat in the summer and a lot of cold in the winter. Therefore, we do not recommend a concrete slab.
                You can, however, build a concrete footing (like a stem wall that is flush with the ground) and fill the inside with gravel, dirt, or pea rock.
                You can also add the foundation frame as an additional accessory. This will work without a concrete foundation or footer.

              • What foundation/ground/footing do you recommend?

                There are plenty of options for you to prepare the ground before setting up the greenhouse. If you choose to purchase the foundation frame, you don’t need a foundation. You only need to level the ground and add material of your choice. We usually recommend gravel, dirt, or pea rock. The foundation frame will go into a trench to provide more stability.

              • Does the Riga come with a base/foundation frame?

                No. You can either purchase the foundation frame separately or purchase the premium kit that also includes shelves for just a little higher price.

              Customer Reviews

              Based on 3 reviews
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              C
              C.P.
              Last year's tomato crop in my west Riga greenhouse

              The 2017 tomato crop was the must successful I've ever had. Our first harvest was April 30, and a plentiful supply continued until January 4. From the two Rigas we harvested close to 700 pounds of tomatoes, some of which were consumed fresh and most of which were juiced, canned, dried, or otherwise preserved for winter use. The indeterminate plants in the west greenhouse were each more than 26 feet long when I removed them in January.

              I tried a new approach for plant support in the west Riga. I've included a succession of pictures taken through the 2017 season showing the progress. I hope you find them interesting.

              K
              K.C.
              My Fav greenhouse

              One of the best greenhouses you will ever buy. Quality built, great for growing or wintering plants due to triple wall polycarbonate and sheds ice and snow well. Dave at shopgrowspaces was very great at helping me through the whole process. What customer service should be. Thank you Dave!

              R
              R.B.
              Perfect Packaging

              hey just a quick note, the order arrived in perfect condition, looked like it was shipped from across the street!!! AND special kudos to your packing department, I have never ever received anything this well packed and organized.I wish amazon took some lessons from you guys.next step, putting it all together and go..I am just amazed the quality of service you and your staff provide.Now to unpack all the little packages and go from thereagain thanksrobert.

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