Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Post frame building design

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Title: Post frame building design

Actually, this is a viable structural system if properly designed and constructed. The posts provide support for both vertical and lateral loads and the metal sheathing provides diaphragm action. Here are a few resources that might help:

There is an article in a recent issue of Frame Building News that discusses a project where a full-scale post frame building was tested with lateral loads to better estimate the resistance provided by this system. Here's a link to the online article. You may need to register (free) to view it:



John "Buddy" Showalter, P.E.
Director, Technical Media
AF&PA/American Wood Council
1111 19th Street, NW, Suite 800
Washington, DC 20036
P: 202-463-2769
F: 202-463-2791

The American Wood Council (AWC) is the wood products division of the American Forest & Paper Association (AF&PA). AWC develops internationally recognized standards for wood design and construction. Its efforts with building codes and standards, engineering and research, and technology transfer ensure proper application for engineered and traditional wood products.

The guidance provided herein is not a formal interpretation of any AF&PA standard.  Interpretations of AF&PA standards are only available through a formal process outlined in AF&PA's standards development procedures.


From: Jim Wilson <wilsonengineers(--nospam--at)>
Subject: Post frame building design

I have been asked to review a set of plans for an architect designing a post frame building. The builder had a set of "engineered" plans from a post frame company, but didn't want to use them for whatever reason.

Those plans included a flat floor slab with no turned-down edges or footings on the perimeter, glulam pressure treated posts embedded in dirt with no concrete, no lateral bracing other than the 28ga metal over 2x4 girts spanning 8ft between poles, roof trusses at 2' with metal roofing over 2x4 girts at 2'o.c., no insulation, etc., etc. This hardly seems up to code or up to any engineering standard. Is there some magic about these buildings that they don't need normal structural building components? The building inspector already approved the original plan (presumably out of complete ignorance).

Jim Wilson, PE
Stroudsburg, PA