How Far Apart Are Attic Trusses

The truss that is spaced 16 on center is usually designed lighter and handles less weight then the truss that is spaced every 2.

How far apart are attic trusses.

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. 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 defense is our engineers will not allow us to. 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.

With traditional stick frame construction the trusses are usually spaced 2 feet apart. And more trusses usually equal more cost. Depending on the complexity of your free computational tool it may require you to enter details about rafter spacing usually 16 on center bridge type height and board size. Truss spacing for metal roof.

These are typically spaced at certain intervals to provide the necessary support for the roof. Typically pole barn style buildings in my area have bays distance between trusses of 5 feet to 12 depending on pitch insulation and height. So the space between rafters can be greater without reducing the maximum span. The same concept holds true for roof trusses.

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. This is traced back to building codes and structural design standards. These standards are as follows. Roof truss span tables alpine engineered products 15 top chord 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 2x4 2x6 2x6 bottom chord 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2x4 2x4 2x6 2 12 24 24 33 27 27 37 31 31 43 33 33 46 2 5 12 29 29 39 33 33 45 37 38 52 39 40 55 3 12 34 34 46 37 39 53 40 44 60 43 46 64 3 5 12 39 39 53 41 44 61 44 50 65 47 52 70.

The bay is the space within the truss and the longitudinal joining members are purlins. I ve had roof truss manufacturers try to convince me it is impossible to place wood trusses at spacings of over every 4 feet. Most are spaced between 18 26 inches apart. Putting the trusses into place.

A 10 8 6 and 4 spacing between trusses has been the standard for most types of construction for years. So keep that in mind. It all comes down to engineering. Shop and barn trusses typically are spaced around 4 on center but sometimes are spaced as far apart as 8 to 10.