It's wise to secure any greenhouse to a base. Otherwise you are likely to find it damaged, knocked over, or in the neighbor's yard after a wind storm.

I buried my HFGH 10x12 right into the ground. I then drove rebar stakes inside each corner into the ground and attached the rebar to the foundation.

Hmmm Ok this helps a bit. I like the re-bar idea. The green house than I am looking at comes with a metal base (similar to HFGH) but I was unsure if I should attach that base to another base from treated 4x4's.

elp901
What is the metal base made of (aluminum? steel?), and is it powder-coated or what?

Here is a helpful link with tips on foundations. In particular note that pressure-treated wood can be corrosive to aluminum bases and needs a plastic vapor barrier for protection.

Here is a link that might be useful: GH foundations

Hi Kudzu9,

Thank you for the information on GH foundations. I will have to look through this carefully. What I found about the GH base is that it is galvanized steel that is powder coated. What do you think?

Erin

Here is a link that might be useful: GH information

I think that powder coated galvanized would not be a problem (it's probably why they make it out of steel and not aluminum). If it were me, I'd give a call to Exaco Trading in Austin, TX (877-760-8500) just to be sure; I believe they are a major importer of this GH. I've dealt with them before with my own GH and they are friendly and provide good info.

Hi Kudzu9,

Thanks for the tip about Exaco Trading. Do you think they would speak with me even if I did not purchase my GH from them?

Erin