Post-frame construction is a cost-effective option because it requires fewer materials, less-expensive components, and less construction time than comparable methods.
The cost of post-frame construction is generally lower because it requires limited wall- and roof-framing materials and minimal footing and foundation materials. In many instances preservative-treated posts or isolated concrete piers embedded directly in the ground serve as the foundation for the post-frame system, eliminating the expense and time of pouring a continuous foundation. Large glued- or nail-laminated wood columns are widely spaced, so fewer wood materials are needed than for traditionally-framed buildings.
From site preparation to project completion, construction times are very short for post frame building, which cuts down on labor costs. Post-frame column spacing is very wide, typically between 8 and 12 feet, and thus the crew spends less time installing fewer structural members. An experienced crew can erect post foundations, side and end wall wood posts, wall girts, roof trusses, and roof purlins in 2-3 days. Many light-commercial buildings are completed in 90-120 days.
Although almost any type of exterior finish can be used, 26 to 29 gauge ribbed steel panels are used for siding and roofing on many post-frame buildings. They can be quickly and easily installed and provide decades of low-maintenance service.