Just an update after some nasty wind, ice and snow. With my only mods being a few well placed screws to secure the panels, three max per panel, the greenhouse came out unscathed except one panel blew out - the one I neglected to screw. Plus my base is not anchored or even really properly backfilled yet. We had 50 mph wind gust, snow,ice, and temps in the teens. Just saying, don't let the extreme mods some people find necessary scare you away from this greenhouse. I'm doing fine so far with nothing but a few self tapping screws and a not so tight base. I still plan to caulk just because, but it is pretty tight now and holding the heat in as well as can be expected.

Good to know it's working good for you. I bought my HFGH in 2006. A few wind storms forced me to reinforce the heck out of it. Even now, I still have problems with some of the panels. I even did a few Youtube videos on the upgrades. So far, it has held up. My biggest challenges now are that the panels are starting to break down because of UV. I am now thinking my best option would have been to build a solid stick built with glass. I have just put way too much work into it than it's worth. But for the money, it is a great starter GH. Tom

I agree, great starter GH. Later on I would like to upgrade. I do think from reading this and other forums that the HFGH quality isn't consistent from box to box or year to year. Some go up so easy and strong, some not at all. The costs of modern day outsourcing to the cheapest, not best, suppliers. All in all we get what we pay for and this greenhouse will do for now.