Steel Roof Truss Spacing

So the space between rafters can be greater without reducing the maximum span.

Steel roof truss spacing.

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. It all comes down to engineering. 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.

Common spacing for trusses on this type of building is often between 2 and 4 feet but trusses built with advanced designs may allow spacing as great as 8 or 12 feet. 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. 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. 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. The typical standard for the spacing on the roof trusses is 24 inches. Truss spacing for metal roof. The same concept holds true for roof trusses.