Hope the attachments work. This is my 1st attempt. The greenhouse is prefabricated Leonard's 8X12 ft single wall fiberglass. It came with an external vent fan/thermostat. I hand dug the 8X12X1 ft foundation, filled it with grade 21B stone(good drainage and compaction), hand layed 12X12X1/4 inch pavers. All of that was done with a compass, string, level, and a measuring tape. I used to be a Civil Engineer. The greenhouse was delivered in one piece(sorry I don't have pics since I came home late). The guy needed help with placement since we had 30-40mph winds that day. I dont have heat or electricity in there yet so no orchids, just my satsuma orange tree. Pluses to this greenhouse: 1) Inexpensive-$2,000, Paid less for this than I did for my 8X10; 2)Well insulated/Sealed-In the 50's here yesterday and 105 in the GH; 3)Comes with Vent Fan/Thermostat- Some come with misters; 4)Comes with Benches. Minuses: 1)Poor Ventilation -No roof/floor vents, may have to add these, will definetely be leaving the door open and running fans. 2) Single Wall- Will let you know what the heating bills are although it builds up quite a bit of heat during the day so far. Anyone have any thoughts/suggestions for improvements? I will probably have to put a shade tarp over it. I used the paperclip symbol for attachments. Hope it works. Thanks for your input.