Elite 8x12 Greenhouse Kit - 10mm Twin-Wall Polycarbonate

As you can see in the photo the greenhouse cannot stand up to "the harshest conditions". Yes we get windy, but this was not the result of a tornado or hurricane. The warranty specifically excludes "acts of nature ". Wind blows it over? Out of luck. Collapses under snow? Sorry buddy. Bird flies into a panel and cracks it? Too bad, so sad.Additionally the unit was tough to assemble, the braces on the windows broke long before the greenhouse collapsed (wind - i.e. act of nature), the the door warped (temperature extememes - i.e. act of nature).#buyersremorse

Don't waste your money. We put this up in the summer, it was a Hassel and I tore my shoulder in the process. By February our typical winter winds literally pulled it off it's own frame and left only the base in tact. The metal twisted and tore itself apart. It can't handle a typical Vermont winter and Grandio did not honor their warrantee.

Not as good of quality as I would have expected for the price. Greenhouse shakes in wind. Door wheels broke off in 20 MPH wind. I don't think it will last very long. :(

There are so very many little pieces to put this together. It also does not come with pieces on the side as others do to attach a shelf. Once up, it is beautiful. Getting it up is another story. It takes time, concentration and lots of room for all the little pieces that need to be put together.

This is a great greenhouse. It is tall enough for our 6'2" son-in-law, with room to spare. Though not a speedy, simple item to assemble, the instructions are clear and thorough. We are very, very happy, and have baby seedlings planted and getting ready for spring.

I bought the Grandio Elite 8 x12 through a local big box because of no interest for 24 months. I was back and forth between the Riga 4, and Monticello greenhouses but they were double the price. It took me a lot of time to level the site and decipher the instructions.. Today 10/11 we received a lot of rain from Tropical Storm Michael and all I can say is that there were quite a few leaks from many of the seams and bolts. I didn't have a chance to seal the upper panels with silicone yet but applied the venting tape to both the top and bottom of the panels. Now that I see where its leaking I will caulk quite a bit when the weather dries out.Update Nov 2018-the leaks have finally stopped after going through 6-7 tubes of caulk. I over caulked the top panels particularly the sides as some panels had larger gaps in there and needed more silicone.If I would of done things over, I would of attached the greenhouse to a wood frame foundation. I found the steel base kit was too difficult to keep level and more work because of digging 12 holes with a post hole digger and using cement and running into the risk of settling.Update Jan 2019- This greenhouse is located in Upstate NY as we have had a lot of cold and little snow so far until today we received 14" plus inches. I used 2 x 4's to prop up 2 center supports just in case and it easily handled the snow load. I have a small heater in there and on below zero nights the temps were above freezing. I have lettuce, spinach, kale and parsley which have easily survived the cold.Another downside I see is the sliding front door which doesn't like to stay on the tracks and lets cold air in. I plan on building a dutch doorway there in the spring for better insulation and venting on warmer spring days.Lastly, I wish the Grandio had a shelf kit you could install on the sides so you double your growing and seed starting space. I will build a wood shelf support along the north wall which will be attached to the raised bed so I can harden off my spring vegetables.Given the 10mm twin wall, I feel I can start warm weather plants in the beds in early April which will be a month or so ahead of schedule. The soil in the raised beds is unfrozen and when warmed enough should support early heat loving crops later on.I increased my stars to 4 out of 5 as it's still a nice area of refuge when the everything in my large garden is in its dormancy and on a sunny day the temperature inside make it feel like spring. Attached are some pictures of spinach, kale, lettuce which survives nicely under double cover when temps earlier in the day when this picture was taken at -5 degrees F.

I purchased the 8 x 8 Grandio Elite Greenhouse. Before I get into the review, let me first say, that there are 181 bolts involved and not near enough nuts to attach to the bolts. The bottom line is that you have to friggin crazy to buy one of these. My model was a 2014 (purchased in July of 2015). The instruction manual was dated 2013. OK 2013 manual for a 2014 Greenhouse. I requested additional nuts for the bolts and when received they were much better than the originals. You must pay attention to the minute (precise they call it) details or as I have had to do is to start out each day taking down what was constructed the day before. We spent considerable time looking for pieces only to learn that they weren't shipped and we needed to download a more recent manual. They are two cheap to send an Instructional DVD. On one request, I received a picture from the manufacturer that indicated a gap of 1/2" at the base - when questioned - no -there should be no gap indicated on the picture to me.I could write paragraph after paragraph about the over 40 hours I have spent trying to construct this admonition. The customer service peeps have been as frustrated as We have. An engineer neighbor, and several others bring their lawn chairs and morning coffee to what has been a community folly.Just wonder how many bolts there are in an 8 x 12.

We have had constant problems with leaks and despite several tubes of silicone caulk, a significant number of the leaks remain. I now think I'll put 2 12x3 foot additional polycarbonate panels onto the 2 upper roof sections and the single seam resulting should put an end to almost all the remaining leak problems. I fixed the doors; which tend to rack and pop off the track by placing a roller ball onto the outside of the middle of the top rail of each door (official name: 'mini nylon transfer bearing unit' bought on Amazon). The roller ball holds the door in place, and was stuck on with 3M industrial mounting tape.