When selecting custom building systems, the property owner faces the decision of either going for stick frame construction with poured footings or choosing post frame construction with solid timber posts that are embedded into concrete piers.
While the former construction method may be common in residential subdivisions, the latter is more efficient in workshops, garages, and multifunctional outbuildings. This is because the reason is that the load path will not depend in any way upon the continuous internal bearing walls.
In regional climates experiencing severe seasonal freeze-thaw cycles, post frame construction in Lancaster PA provides distinct structural advantages. According to structural engineering studies by the National Frame Building Association (NFBA), transferring roof loads directly into earth-anchored solid timber columns offers exceptional resistance against high wind uplift forces and heavy snow accumulation. Continuous load-bearing stud walls rely on hundreds of joint connections—each representing a potential shear point during lateral wind load shifts.
Comparing Structural Frame Performance
Choosing between engineered post frame columns and conventional stud framing alters your building’s structural footprint, thermal profile, and installation speed.
| Performance Metric | Engineered Post Frame System | Conventional Wood Stud Framing |
| Primary Load Spacing | 8 to 12 feet on-center | 16 to 24 inches on-center |
| Foundation Requirement | Isolated concrete piers or embedded posts | Continuous poured concrete footer |
| Thermal Bridging Area | 8% to 12% of total wall area | 15% to 25% of total wall area |
| Clear Interior Span | Up to 80+ feet without load-bearing walls | Limited to 24–32 feet without costly steel beams |
| Shell Erection Time | 3 to 7 business days | 2 to 4 weeks |
What Drives Thermal Efficiency Differences?
Thermal efficiency of the thermal envelope depends on the shape of the frame and the type of insulation installed. Stud walls create thermal bridges since solid wooden studs are in contact with both exterior and interior finishes.
With the use of engineered columns placed 8 to 12 feet apart in the structure, the wall cavity becomes large enough for placement of wide-width insulation batts or even spray foam insulation continuously without any interruption from framing lumber. Experiments conducted at the USDA Forest Products Laboratory prove that a decrease in structural wood framing area in the walls can increase their R-values by 22%.
Steps to Execute a Structural Post Frame Build
Building an engineered post frame construction in Lancaster PA follows a streamlined process that minimizes site excavation and eliminates long foundation curing delays.
- Site Grading & Concrete Pier Installation: Prepares deep footings beneath the frost line.
The excavation crew grades the construction site and digs deep vertical footings that reach past the 36-inch frost line. Concrete piers are erected with uplift anchors on top.
- Column Erection and Plumb Alignment: Provides primary vertical load path.
Erected columns made from engineered glulam or wood are attached to the concrete pier brackets and braced. Columns provide the load-bearing system for the building.
- Engineered Truss System Connection: Provides large open interior spaces without any interior walls.
Engineered roof trusses, taking into account local snow loads, are attached to the column headers with the use of heavy gauge steel brackets.
- Wall Girts and Exterior Envelope: Protects the building from the elements.
Wall girts are installed on the columns in order to receive exterior steel or composite wall paneling.
Frequently Asked Questions
Are post frame buildings constructed with continuous poured footings?
No, post frame systems don’t require continuous footings; the building’s load is transferred through engineered columns which are mounted over concrete pier footings below the frost line.
How does the post frame framing impact construction costs?
With post frame framing, less soil needs to be excavated, and less concrete is needed, saving owners between 15% and 30% of the initial cost of shell construction when compared with stick framing.
Is it possible to use post frame framing for finished structures?
Yes, thanks to advancements in post frame technology, these structures can now be used for custom houses and multi-use living quarters due to the wide spacing of posts.
How does the lifespan of post frame structures compare with that of traditional buildings?
Thanks to the use of pressure-treated timbers and column mounting brackets, post frame buildings will have a lifespan of 50 to 80+ years, similar to traditional stick-built structures.
Superior Structural Framing
The adoption of engineered structural framework systems provides owners with structural adaptability, enhanced thermal envelope performance, and lower labor costs for foundation work. Post-frame construction enables loads to be moved from the roof into deep-set structural columns, thereby ensuring no internal structural limitations exist.
