AmericanSteelspan.com - We deliver quality, strength, and service at factory direct prices on all custom or prefab metal buildings and garage kits.

crownsteelbuildings.com - Whether it's a home workshop, commercial shop, two-car garage, shelter for your boat or warehouse, Crown Steel Buildings pre-engineered steel buildings are perfect protectors. 
For Canadian residents http://www.crownsteelbuildings.ca/