Roof Truss Spacing Pole Barn

Many post frame or pole barn construction use 8 foot spacing between trusses.

Roof truss spacing pole barn.

For many traditional stick frame builders trusses spaced 8 feet apart seems unnatural but thanks to the ingenuity of modern engineering it is a very common building design. Typically larger trusses 72 and 80 were two ply. These pole barn trusses are much harder to set in place and the greater spacing can displace the load causing the trusses to fail. In the 1980s post frame construction companies commonly used 60 single ply trusses.

Roof trusses are engineered to be strong in plane with the roofing on the top chord. Pole barn truss spacing. Especially when steel roof truss spacing is concerned some engineers would argue that it is possible to only have a roof truss spacing of four feet off center even eight feet has been suggested. Post frame roofs in severe weather conditions.

Truss spacing for metal roof. They are spaced every four feet. Trusses 2 o c trusses can also be set 4 o c for steeper roof pitch appeal but eliminating attic storage and flooring building 1 and building 2 building 3 for similar attic area pics. If purlins are laying flat on top of the truss 5 or 6 feet is the max on 2x4 s edge up can go to 12 feet or more.

At the time pole barn builders were unable to hang or lift the trusses without any bending bowing. Truss design programs safely design up to 16 span. Attic trusses are great for living space or storage space. Code requirements do not dictate this.

The more ply or layered material the stronger the truss. For example you might use a 35 spreader bar on a 70 span truss. Each do it yourself pole barn kit sold by diy pole barns includes wood pole barn trusses ranging anywhere from 12 feet to 40 feet wide depending on the structure. With traditional stick frame construction the trusses are usually spaced 2 feet apart.

One sign of a cheaply made pole barn is trusses that are spaced over 4 on center. Pole barn builders have historically requested trusses every 4. Pole barn roof truss spacing generally tens to operate according to similar spacing principles though there are some proponents of having higher pole barn roof truss spacing. Pole barn construction spaces the trusses 8 feet apart or even up to 12 feet apart depending on the building design.

It all comes down to engineering. Of course local building codes and regulations may also determine how many trusses and the spacing necessary for each post frame structure. Typically pole barn style buildings in my area have bays distance between trusses of 5 feet to 12 depending on pitch insulation and height.