Purlin Spacing

Purlin and girt clips nuts bolts other small parts.

Purlin spacing. Spacing for purlins on a standard load most designs call for purlin placement at five foot intervals. By the standard the most used placement of purlin span for metal roof is five foot intervals. You can also contact us by phone at 503 981 6300.

M f 7 00 am 3 30 pm will call hours. The spacing of purlins on roofs and girts on wall is usually 4 to 6 ft. The typical spacing standards for residential and commercial buildings are about 1 to 2 foot.

2994 schmidt ln ne hubbard or 97032. However engineering determines the optimal spacing between the purlins. For heavier material such as gage steel the metal roof purlins spacing length could go up to 4 feet.

M f 8 00 am 2 00 pm. For 2x4s purlins the posts are spaced in 4 feet distance. Purlins need to follow the sides edges of the roof it is important to note that in addition to the proper spacing and doubling of purlins the valleys it is essential to include purlins along the entire perimeter of the roof.

The purlin are ultimately used to fasten the roof steel providing a diaphragm effect along with the siding when properly engineered and installed. The heavier the expected load is the shorter the distance between the purlins. Numbers 20 and 22 u s.

It is understood that purlins are spaced where laps and splices of roof sheets that vary in sizes. For 2x6s purlins the posts are spaced in 6 feet distance. For the lighter material such as lightweight aluminum the common spacing length is 4 inches of clear gap.