With the Harbor freight greenhouse you need to strengthen several parts of it and you can go on line and see what other have done. I use one for my cool weather plants that can't take frost on their leaves and it has taken winds in excess of 50 mph. But as I said I modified braces and walls to strenghten them and keep a shade cloth on top at all times for strength. George Liberty, NC zone 7 -----Original Message----- From: Laura & Dave <toadlily@olywa.net> To: Pacific Bulb Society <pbs@lists.ibiblio.org> Sent: Fri, Feb 24, 2012 1:42 pm Subject: Re: [pbs] Sujit's Cold Frame Queation (polycarbonate glass houses) Just for reference, little personal experience! However, the one I've briefly een assembled looked adequate. Currently on sale for $669.99 (USD). http://harborfreight.com/10-ft-x-12-ft-greenhouse-… Dave ______________________________________________ bs mailing list bs@lists.ibiblio.org ttp://pacificbulbsociety.org/list.php ttp://pacificbulbsociety.org/pbswiki/