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  • Is using a concrete footer necessity? Can I use pressure treated lumber and concrete pad footings in the corners?

    You don't really need a concrete footer, it's just an option. We only recommend concrete footing for double glass greenhouse or any greenhouse over 12x20 should rest on a concrete footing. Concrete footings' only advantage in smaller greenhouses is longevity and easy cleaning. You can very well do with pressure treated lumber and concrete pad footings in the corners for a greenhouse of this size.

  • Also, I saw the instructions for the concrete footing for the greenhouse. It does not explain how deep the concrete should go under ground. Can I get more detail about the recommended foundation?

    It is recommended to go below the frost line to avoid the ground heave due to freezing.  If they are in an area that has deep freezes, I would recommend they reach out to a local builder for advice.  Not everyone does go to the frost line, but that is the recommended practice. The foundation may be a slab or a strip foundation.  Some folks in warmer climates just use corner anchors, depending on their wind protection and ground composition.  

  • There is a lockable sliding door referred to on exaco\'s website. Is that available?

    Yes, the sliding doors do come with a lock now.   It is located at the bottom of the door.

  • Can both sliding doors and double hinge doors be used on this model? We are also toying with the idea of envisioning double doors on the long side and double hinge doors on the shorter side as a possibility?

    The greenhouse can have multiple doors, however the doors fit into the window bays of the greenhouse.  The VI23 has 3 bays on the shorter gable end and 4 on the longer side.  Double doors work best on the long sides.  Again, the VI23 only comes with a single sliding door.

  • Can sliding doors be replaced with double hinge doors in this model? If it\'s possible, is that an additional cost?

       VI23 comes with a single sliding door.  They can upgrade to a double hinged door – it can only then be placed on the long side of the greenhouse due to spacing.  Yes, this is an upgrade. 

  • it\'s possible to have polycarbonate sheets only for roof and rest all glasses?

    Yes, this can be done. It would be the same price as a full poly VI23 as there is a lot of extra labor involved for this work

  • Does it need a concrete foundation?

    All Janssens greenhouses require proper footing because of the included foundation frame. We don’t recommend complete concrete slabs because they hold a lot of heat in the summer and a lot of cold in the winter. A glass greenhouse already heats up and cools down very easily. A footer filled with gravel, dirt, or pea rock in the middle is a better option. You have to cement the foundation into the footer for the perfect stability. Do not set concrete in the corners until the entire greenhouse frame is complete, level, and square! Please, Exaco Royal Victorian Greenhouse VI 23- 8ft x 10f manualor this assembly video for the Royal Victorians. They illustrate how it’s done correctly.

  • Is it possible/wise to remove the rain gutters, say during the winter months?

    No, the gutters are part of the aluminum extrusion.

  • Can I put the Royal Victorians on a stem wall?

    Yes, you can purchase a drop door kit so that you can install the greenhouse on a 10-40” high stem wall. Please note, the kit does not include the glass that goes on top of the door. You can purchase this piece locally to suit your desired height.

Customer Reviews

Based on 9 reviews
Great Greenhouse

Great Greenhouse the order arrived sooner than promised assembly could’ve went better with better instructions overall a great product

Easy to build and great customer service.

Very easy to build. Took me 2 weeks only working 2 to 3 hours a day with like 5 days of no work due to being rained out. Everyone at Exaco that I talked to over the phone or in emails were very nice and were able to either answer my questions or get me to someone who could.

Couple delivery problems but eventually got all the items. First problem wasn't even Exaco fault the freight company that delivered it to me didn't notice that it was 3 boxes and only gave me the glass at first but i got the other 2 boxes a few days later. Second I was missing the seed tray but Claudia sent that out right away after I told her it was missing.

The instructions are just pictures so sometimes it was a bit hard to see what to do. Even the video online was just a few animated slides again no narration not even a little bit of ambient music. Sometimes thought the video was buffering cause it lingered on a shot for so long and there was no sound. This is where I'm removing 1 star. Although I made it through the build it would have been much more helpful to have instructions with both pictures and worded instructions on what you're supposed to do.

Few hard points of the build. First was where the roof brace next to the wind supports there is no room so the support has to either be on top of the wind braces or below either way getting your fingers in there to try and put on a nut was difficult. Second the sliding glass door has a few self tapping screws in the bag but the head on them is huge making it so the sliding glass door couldn't be put on with them there. I just went to my tool box and found some flat head self tappers and put those in place and it worked really well. Finally the clips they provide in with the shade cloth kinda suck. They are good for the top of the greenhouse but not the sides, they are just a bit to long and will catch on the screws holding the center supports and then pop out of the plastic loops holding them. I just replaced them with some zip ties and now the shade cloth opens and closes much easier and without the shade cloth coming undone. I also ran out of the crescent shaped rubber seal. Its the weekend right now so ill see on Monday if I call if they will send me a bit more. Only missing a small part of it.

Amazingly the part I thought would be hard, and was a little worried about when I decided to build it myself, was really easy. Putting the glass on was easier then building the frame. I was worried I'd be breaking glass and having to order more but the tool they give you made moving the glass around and setting it in place rather quick and painless.

All in all it feels like a very robust greenhouse, was quick and fairly easy to build, and had some great customer support when needed and because of that I'll add back in the star I removed before because their service is just that helpful.
Big thanks to David, Claudia, and Alan over at Exaco.

Beautiful greenhouse

This is such a nice greenhouse and looks amazing. My husband put it together and I helped as much as I could. It is high quality and is just what I was looking for!

Good Greenhouse

It looks like a really good quality greenhouse. I have received all the part and preparing the site now for installation. Thank you for the follow up.

Great Communication

Dave -

Thank you so very much. I had faith in you, because your customer service and communications have been excellent.



ShopGrowSpaces vastly exceeded my expectations

Actually, ShopGrowSpaces vastly exceeded my expectations and have been great to work with. The delivery and delivery instructions were good, and in the main the build of the greenhouse was straightforward - some challenging moments for sure, and we will have to do a slight dismantle to sort an instruction item we missed the first time, but the 3d video helped a lot and I never expected it to be easy.

There are some oddities - some of the seals don't make sense etc, but in my tolerant climate I don't need it to survive a hurricane or deal with a lot of humidity and I'm not worried about anything at all. It's very solid and, as far as I'm concerned, great value for money.

Many thanks,

Thank you

Thank you. Everything is wonderful. I have it all set up and ready to go. Here's a video I sent to my sister. Thank you for your excellent service.

My greenhouse project

This greenhouse is very well designed and made of sturdy, quality materials. The downside is assembly is very complicated and the directions and instructional DVD are not easy to follow (and are not consistent). We finally had to hire a professional contractor to put it together for us. That being said, the end result is impressive.

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 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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