Mar 5, 2011. My DYI Greenhouse, is a Costco carport covered with plastic & sunscreen mesh for the walls. For any who may have missed it, there's a link to . Adding a greenhouse to your backyard does not need to be a costly, time consuming. “This was a standard 10'X20' Costco carport that had lost it's cover. Here is my $300 Costco carport greenhouse. I used the frame only from a 10'x20' Costco carport. Covered it with 6mil plastic. The ends are tan . Costco Replacement Carport Cover. Costco 10×20 Carport Frame Cover (top only). Additionally, our clear covers turn your frame to a greenhouse. 88 Sq Ft Of Greenhouse Space; Rust Resistant Anodized Aluminum Frame; Door With. Americana 12' x 12' Greenhouse with Premium Accessory Package. Our new greenhouse revived from an old Costco carport frame. We bought a replacement kit, which they offered as a greenhouse, and of course did a little . Carport Tube Frame Greenhouse Built by Jerry and Wendy This was a standard 10'X20' Costco carport that had lost it's cover. We purchased it for $50.. Replacement Carport Covers and Kits. You've come to the best place for carport replacement covers and kits, we sell 12 mil poly which is typically double the thickness of your hardware store blue tarp. Costco Outdoor Storage Sheds - How To Build A Shed Door Video Costco Outdoor Storage Sheds Garden Sheds Burlington Wa Menards Storage Sheds Wood Outdoor Storage Sheds Hampton Roads. Storage Building Plans Free Blueprints - 8x12 Lean To Greenhouse Storage Building Plans Free Blueprints 10 X 16 Run In Shed How To Build A Plant Potting Cart Building A Wood Frame For A Lamp Shade..