How Far Apart Are Studs In A Flat Roof

Im building a summer house shed.

How far apart are studs in a flat roof. In other words you would space a roof joist 15 inches apart from another roof joist but never 17 inches apart. The drawing is attached its 4 8m x 8m the front height will be around 2 5m and the back 2 2m. The parapet roof by far the most common type of flat roof isn t actually flat at all. Steel studs often used in commercial buildings are also generally 16 inches apart.

A parapet roof involves a typical sloped roof that is concealed behind a parapet wall so that it gives the impression of being flat. For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. For example in the rafter span table below the highlighted cell in the 40 live load table indicates that 2 x 8 southern yellow pine joists that have a grade of 2 that are spaced 24 apart can have a maximum span of 10 feet 3 inches 10 3 if designing for a live load of 40 lbs ft 2. Sixteen inch spacing for 2 4 studs is standard for studs up to 9 feet long.

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. Proper distance a roof joist is always spaced no more than 16 inches apart from another roof joist. These 2 6 studs are likely to be placed 24 inches apart. If you ve wondered how to frame a lean to roof off a pole barn this video will show you how i did it.

Longer studs may need to be closer together to provide enough strength. The length of the stud is also a factor. So the space between rafters can be greater without reducing the maximum span. Double the hill and valley width since this is the amount that the panel will overlap the one next to it on each side.

The same concept holds true for roof trusses. I cut rafters out of 2x8s frame this pole barn lean to. To determine how far apart to set rafters measure the width of the metal panel and then the width of the first hill and valley of the panel. If the roof is not completely square you can decrease the space between joists but never increase the space.