10x12FT Green Houses for Outside with Hygrometer, Double-Door Polycarbonate Greenhouse with Drainage Channel, Large Heavy Duty Greenhouse with Aluminum Frame, Roof Vent for Backyard or Garden Use
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Size: 10x12 FT with thermometers
Features
- Easy Assembly-Our greenhouses for outdoors come with clearly labeled parts, detailed instructions, and the necessary tools for quick setup. With a helping hand and by following the manual, you can easily build a sturdy green house for your backyard garden
- UV-Resistant Polycarbonate Panels-This polycarbonate greenhouse features 4mm thick, 580g double-wall panels that are both clear and impact-resistant. They let in plenty of light while blocking harmful UV rayshelping to maintain a stable interior temperature and creating an ideal environment for healthy plant growth in your green house
- Durable & Stable Structure-This polycarbonate greenhouse is built with a high-quality reinforced aluminum alloy frame and strengthened corners for excellent stability. Designed to handle tough outdoor conditions like strong winds, heavy rain, and snow. For added strength, you can seal the panel gaps with silicone (not included), making it a reliable green house for year-round use
- Great Ventilation & Spacious Design-This greenhouse includes adjustable roof vents and a lockable door to promote airflow and maintain optimal temperature. The roomy interior offers plenty of space for arranging plants, ensuring they grow in a well-ventilated and organized setting
- All-Season Protection-Designed for year-round use, this outdoor greenhouse shields plants from harsh elements. Its UV protection panels and ventilation system help regulate temperature, while the heavy-duty frame protects your garden from wind, snow, and rain
Color: Black
Brand: Sylviera
Product Dimensions: 44"L x 66"W x 76"H
Cover Material: Polycarbonate (PC)
Frame Material: Aluminum
Brand Name: Sylviera
Manufacturer: Sylviera
UPC: 783430958089
Manufacturer Part Number: 01
Model Number: Green House
Unit Count: 906 Count
Item Dimensions L x W x H: 44"L x 66"W x 76"H
Size: 10x12 FT with thermometers
Number Of Vents: 2
Indoor Outdoor Usage: Outdoor
Special Features: Advanced Ventilation & Enhanced Security, Easy to Install, Quick Assemble Design, Heat Retention Ability
Cover Material: Polycarbonate (PC)
Frame Material: Aluminum
Color: Black
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Top Amazon Reviews
Size: 8x14 FT with thermometers
This is a very nice little greenhouse for the money. Not perfect , but for the money, pretty nice. I ordered the 8x14 and kind of wish I had ordered the 10x12. The main reason for that is the 10x12 is taller. For the 8x14, I ended up framing pressure treated 2x6s on end for the greenhouse to sit on for an additional 11 inches of height. This also means building steps on the inside and outside at the door. Which I'll get to eventually. So the bit extra for the 10x12 greenhouse is absolutely worth it, because it cost me more in materials to raise it and build steps than the price difference between them. With the additional 11in in height, I'm able to stand comfortably at the edge of the roof (lowest point), and I'm 5'10". And that's including several inches of mulch on the floor. Having said that, I'm very pleased with it. It's fairly sturdy and feels like it could withstand a storm. Maybe not a midwestern storm, but here in WV, I think it'll do fine. The window panes are a bit flemsy and cheap feeling, but again, for the money, I'm pretty happy with it. And, to be honest, I think the way they designed their panels will likely offer more insulation than solid poly panels or glass. So, the way the windows are designed does seem to offer functionality, even if they do feel a bit cheap. Also, the roof vents need a rubber band to keep the prop arms attached. The wind picks them up, unhooks them, and then they fall closed. So I've got rubber bands holding the prop arm onto the screw that they use to hook it. Now, some have said the instructions are confusing and it takes forever to build. Well, sort of. Some things could certainly be depicted better. But if you take your time and study each drawing closely, and study the parts closely to make sure you're installing it correctly, you'll be fine. The issues are mainly in two areas. The central beam that makes up the roof centerline could have been drawn a little better. And the last few pages of instructions have some errors, such as not listing the quantity of parts correctly and not noting the parts in the drawing correctly. It's easy enough to figure out, but it was a little confusing at first. Just think through it. It makes sense as long as you're aware there's some mistakes in the instructions and can sort of think logically about where things should go and how they should attach. As far as issues, the way the panels slide in can be a bit tricky. It takes two people. One inside and one outside. If a panel feels like it isn't fitting, or if the beams between the panels aren't connecting or have a gap, start loosening screws on the frame to let everything settle where it wants to instead of forcing it. And some of the window panels had crushed or bent edges which made things difficult. But they weren't so damaged that it was worth returning. For the most part you can't even tell, it just made getting the panels fit into place a bit more difficult. Also, the door frame isn't perfectly square. I tried adjusting locations of the frame with screws, but couldn't get the door squared. Probably the base not being perfectly level or square, but some sort of adjustment or shims around the door would have been nice. It does close though so not a big deal. It just rubs in the top right corner when it closes. Time to build... Well, that depends on how many mistakes you make. For the most part, as long as you're paying attention and studying the drawings closely, it pretty much only goes together one way and it's obvious when you have the wrong part or putting something in the wrong direction. That said, I did make a few mistakes that cost me some time. Like on the ridge beam at the top, I didn't use the metal plates under the bolts and nuts at the joints because I didn't notice them in the drawing, and getting the screws back out without that plate in there is difficult. That cost me 2 hrs. Mainly because I had to drill out a couple bolts and go to the hardware store for more. So study the drawings closely š But, overall, even including 2-3 hours worth of mistakes, and some breaks because it was hot, etc, I started at 9am, and finished at 7pm. And that's just the greenhouse, not any of the leveling of the ground, or building a base to elevate it, or any of that. All that was done on the previous weekend. So, expect a full day of building just the greenhouse, not including any time to prepare the site to build on. Then of course time to shovel in mulch or whatever you're going to use for a floor. Plus plumbing if you choose to have it. Another note, carefully use a razor blade to remove the film from the roof vent window panels. The frames are riveted so you can't take it apart, so when you peel the film off it just tears at the edges leaving torn bits stuck under the metal frame. Run a razor blade down the edges of the metal frame, then peel off the film. Just don't cut the window. For space, 8x14 isn't as big as you'd think it is. It's plenty for what we're going to use it for, but I think 10x14 would be a better size. Actually, 10x14 with an 8 or 9 ft roof peak would be ideal. Things you'll need... Well, I had to dig a 100ft trench to lay a pex water line to have a garden hose faucet, water timer, water filters, misting nozzle system, etc. And to use it year round, we're going to be adding a heat pump. Which will mean another 100ft trench for laying a 10/2 cable w/ conduit to get power to the heat pump. But it does need cooled in the summer, and heated in the winter. Obviously that depends on where you live, but in WV our summers are in the 90s and winters are usually mild to cold (highs in the 20s to 40s, and lows in the teens, with occasional extreme lows of -30Ā° (polar vortex). All in all, very pleased with the purchase. If I was going to do it again, I might actually save up and frame my own out of timber and use glass windows. Maybe a brick wall at the end. Just for the aesthetic of it. But the cost would be massively more expensive. So again, for the money, this is fantastic. If you're on a budget and a the expense of a scratch build is out of reach, whether because of money or lack of skill in building from-scratch construction, or just don't want to devote a bunch of money to it, this is a very reasonably priced option that you'll be pleased with. It doesn't take much skill, just study each drawing closely and take your time. Do that and you'll be fine. It is actually pretty logically designed so even in the places where the drawings don't make much sense or there's errors in the drawings, it still doesn't take much to figure out what needs done. Forgive the mess in the photos. Haven't cleaned up the trash, or the tools, or finished landscaping around the greenhouse yet. I was exhausted when I finished it, and my wife and I tore up a pretty decent sized section of our yard leveling the site and digging the trench. (well, more of a hill than a yard) But it's built. And I hurt everywhere š Update: I just ordered a 12" solar powered exhaust fan. This morning it was 68Ā° outside at 10am, and due to our property being on the West side of a small mountain, the sun didn't even start hitting the greenhouse until about 9am, but by 10am the greenhouse was already 93Ā°. That was with the roof vents open. And our plants need it to stay under 85Ā°. I propped the door open which kept it under 90Ā° during the hot part of the day, but it definitely needs an exhaust fan. And probably a 70% shade tarp and an AC in the summer. It collects heat very well. I was worried that just having plastic windows without much sealing around them that there'd be an issue with heat escaping. That does not appear to be the case. I've also ordered a 1500w greenhouse heater for winter, so I'll update this review again after I see how it does during the cold months. But my guess is that it won't take much heating to keep it above 40Ā°
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Reviewed in the United States on September 18, 2025 Reviewed in the United States on September 18, 2025 by JM
Size: 6x4 FT with thermometers
I absolutely love this greenhouse! The aluminum frame feels incredibly strong and holds up well against the wind, giving me confidence that it will last through the seasons. The polycarbonate panels are fantastic ā they let in plenty of natural light, which my plants really need to grow healthy and strong. I also really appreciate the vented roof window; it provides great airflow and helps keep the temperature from getting too high on sunny days. The quick-installation design made the whole setup process surprisingly easy ā I didn't struggle with complicated steps or missing parts. This greenhouse is absolutely perfect for a small garden like mine. Since I put it up, my plants have been thriving like never before. Highly recommended!
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Reviewed in the United States on April 21, 2026 by Manish
Size: 8x10 FT with thermometers
It was relatively easy to put together with 2 people but took a few days working a couple hours at a time. We found some old bricks buried on our property so of course we built the floor first. We used locktight on everything to make it sturdier, siliconed the entire thing as well. You gotta make sure everything is aligned perfectly for it to fit together nicely. We also screwed it right into the 2x4 so it doesn't go anywhere. I think its a great greenhouse and I cant wait to see how well it performs. I love that it comes with the thermometer that connects to an app so I can keep an eye on the environment while away. 4 stars because without the lock tight and silicone, it wouldn't last as long. I will come back after a few months to update this review!
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Reviewed in the United States on April 3, 2026 Reviewed in the United States on April 3, 2026 by Christina
Size: 10x12 FT with thermometers
Update: they gave us a very nice discount for the issues we were having. Now that Iāve had it up and set up for a while it is very nice. The skylight vents donāt stay in so I decided to take them out until it gets cold. But the greenhouse itself holds heat very well. I donāt think Iām going to have any problems with heat in the winter. We used silicon to fill in all the gaps. I really do like it and it is very nice. I got the 10x12 and itās okay. Definitely not the best design. I donāt know if weāre doing it wrong or what but the vents at the top donāt latch. Thereās few gaps within the frame. The worst part was putting it together. It took my husband and I almost two days to put it together. Thereās so many parts. The directions are terrible. They donāt show which way some parts go so we spent most the time trying to figure out which way certain parts go. We couldnāt go 1 step without having an issue. We build and put things together all the time and this was the hardest thing we have put together. On the up side, itās very spacious and it looks very nice. It seems sturdy but I live in a fairly windy place so weāll see. We had to use our own anchors bc it only came with ground anchors, not concrete anchors. But it seems like it will be good and I am very excited to get it all set up and started!
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Reviewed in the United States on July 30, 2025 by Chaz Pennington
Size: 10x12 FT with thermometers
Trash! Do Not Buy! Instructions suck, poor panel locking mechanisms, impossible to get square and even all around, requires 2-3 people minimum, takes days to build(even for the handy), not resistant to wind, cheap assembly hardware, the list goes on. Additionally, the reviews are not specific to size options, so any 5 star reviews for the smallest size count as 5 star reviews for the largest size, which is misleading. Definitely not worth the money, expensive shipping in addition to the product price regardless of prime membership. Thought several times mid assembly about taking down and returning, but past short return window. Just to give you an idea of how bad it is, the instructions say, for the tools you need section, that you need a "toolbox". Yes, that is literally on the list of what you need... a toolbox, listed along with the actual tools... Save yourself the time and money, and Don't buy this Trash.
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Reviewed in the United States on April 26, 2026 by deanna beaver
Size: 6x4 FT with thermometers
Updated review as of 12/8/25: The seller contacted me after seeing the issues I was having which was greatly appreciated. They apologized for the issues and offered a few differ g options to mitigate what was wrong. Having a seller take ownership of their product and make things right is extremely rare these days so it means a lot. They didnāt have to offer a fix at all yet they chose to. That doesnāt for unnoticed. Great communication. Would order from this seller again based on this interaction. Updated review as of 11/11/25: Not very sturdy in storm/wind related weather. Rain has been fine with this shed, even in really bad rainfall. The issue weāve noticed is wind. We have had two major wind events over the past few months and each time, we basically had to rebuild this shed which is not so easy. The first wind storm, all the clear pieces came out, like allllll of them. We thought no biggy, weāll just slide them back in. Nope! You canāt do that and we had to take everything off and rebuild this thing. We just had another windy weekend (not even a storm, just wind) and 4 of the clear pieces were thrown all around our yard. Iām not sure how many more may come off and I donāt know if I have it in me to rebuild this thing again and again. Iām def disappointed that it canāt even withstand some windy days. I think itās because the tracks these go in are not very deep. They just about fit, so any movement and they pop right out. I also wish this was created with a way to slide the tracks in and out more easily. It hasnāt even snowed yet and weāve rebuilt this twice now. I canāt imagine itāll do well in the snow and if it doesnāt, weāre tossing it. Not worth the hassle so fingers crossed! Initial review: Overall pleased, but wouldnt really consider it a quick-installation. We were looking for another shed to hold some lawn equipment and my garden supplies but instead of a bland, ugly shed we opted for this greenhouse. It looked better and went with our aesthetic. Itās def super cute and glad we purchased overall. Installation: Idk if we had an off day but it took my husband and I like 3hrs to put the 4x6 one together which I feel like is alot. We build stuff all the time too but there are alot of pieces, clear backings to strip off, holes that donāt line up, and the directions are not the most clear at times. We put many things on wrong thinking it was right only to realize it several steps later, having us back track. Most things were labeled but many were not so was also aggravating. It took 5hrs overall but we had to build and level a base first. Durability: it actually seems pretty sturdy metal wise. They give you anchor plates so you can drill it down which is good for any storms but I do feel the actual sides arenāt conducive to having any stress put on them. You def will need to put up a stand alone shelving system or keep things away from the sides or you risk pushing the sides out or denting/bending them. How it holds up during rain or snow is yet to be determined. I truly hope the top portions donāt bend with the weight of slight snow. Size: we did the 4x6 because we wanted just a-little something for extra storage so I think this works fine for us. The doorway is on the skinnier and shorter side. Iām only 4ā11ā and I barely make it through without ducking. Pros: very stylish Gets very hot so good for plants Nice door latching mechanism I like the open air hatch Decent space Cons: -Not as easy to put together as youād think -Some things donāt line up and left gaps -Small and short entryway -Sides wonāt take on much stress so canāt have free standing items or lean anything in my opinion -Both side of the panes have protective coverings. One is white and one is clear you can almost miss it. Annoying to take these off of every piece. -I actually wish there was no metal bottom where the door is and it was just open. If you need to bring things in here heavy then you have to pick it up to get it over the framing which might be difficult. Bottom line: for the price I think this was a great alternative for us despite the cons. I love the look and think itās worth the try.
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Reviewed in the United States on July 24, 2025 Reviewed in the United States on July 24, 2025 by laura fileccia
Size: 6x4 FT with thermometers
Absolutely love this greenhouse! The setup was much easier than expected, and the frame feels sturdy and durable. We actually left the protective covers on the panels so it isnāt see-through, and it turned out perfect for what we needed. Since it locks, we decided to use it as an outdoor pool supply storage and changing room instead of a traditional greenhouse. Itās the perfect addition to our backyard ā functional, neat-looking, and gives us extra private space by the pool. Very happy with this purchase!
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Reviewed in the United States on May 17, 2026 Reviewed in the United States on May 17, 2026 by Jennifer A.
Size: 12x12 FT with thermometers
5/2/26 - This is a legitimate review from a regular person and actual buyer, not a paid recipient. No AI is used, which will be obvious by the end :) TLDR: high-quality product, easy assembly, proper foundation prep is crucial. Very, very happy with the final product. It arrived in 4 good-sized boxes abd moving them was the hardest part. The instructions are mostly pictorial but clear and easy to follow. Parts were clearly labeled and assembly was intuitive after the first couple steps. For tools we only needed a couple Phillips screwdrivers, a torx screwdriver (a torx tool is also included), and a 10mm box end for tightening bolts. We also ran silicone caulk in all the channels to seal the panels and provide more structural strength. All in all is too us about 9 leisurely hours across 4 days to complete. Once unboxed the parts were light and easy to handle and I'd say you don't have to have any special degree of mechanical aptitude to build. You DO have to have a flat, true, solid base of at least 13'x13'. We had a concrete pad poured specifically for this. The kit includes 4 good quality brackets for securing the greenhouse to whatever surface you choose but the included glorified drywall screws and plastic anchors included are completelyinadequate for something like this. I used 1/4" hammer set concrete anchors. I also added 4 additional brackets also with anchors. I am confident it will survive anything short of an actual tornado (I live in Tornado Alley). If you put it on a wood deck or framing definitely get some lag screws. I also put some foam sill tape under the base to seal against air and water coming underneath. Whatever you do don't skimp here. This is a building and like any building anywhere the finished structure depends heavily on the foundation.
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Reviewed in the United States on May 2, 2026 by Rick Bowlin