The Sun Country Greenhouse is very easy to assemble as long as you have the manpower, two or three able bodied helpers. Below are photos of a 8' greenhouse and the larger 16' greenhouse.
mike2 mike3 mike5
mike4

 

Lay down landscaping cloth

Connect side walls with rear end wall

Put roof sections together

Lift roof onto side walls and put front wall in place
Grn19301 Grn19362 Grn19704