Steel Roof Truss Spacing

Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss.

Steel roof truss spacing. Truss spacing for metal roof. This is most likely the standard size that you will find on pre made roof trusses. Roof trusses were usually produced on site in the past. 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.

It all comes down to engineering. As most building these days are using those pre made trusses on the roof 24 inches become the main size for any roofing construction when it comes to its truss installation. The typical standard for the spacing on the roof trusses is 24 inches. These standards are as follows.

Engineers have since determined however that the physical design of a post frame building will allow for standard spacing as great as 12 feet from the center when using high quality metal connector plates and lumber. Their programs will allow for trusses to be placed on 12 foot or even 16 foot centers and their engineers will place their engineer s seal on the drawings to verify. So the space between rafters can be greater without reducing the maximum span. Typically pole barn style buildings in my area have bays distance between trusses of 5 feet to 12 depending on pitch insulation and height.