Roof Truss Spacing Standard

Spaced sheathing or 1x boards may be reduced slightly.

Roof truss spacing standard.

Allowable spans for 2x4 top chord trusses using sheathing other than plywood e g. For instance if you are spacing your trusses 18 inches apart make a mark 18 inches from the edge. Spacing a live load deflection limited to l 240 maximum and use lumber properties as follows. 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.

There is a misconception that spacing trusses every 16 on center is better because it will be strong than the average 2. 2x4f 2000psif 1100psie 1 8x10 2x6f 1750 psi f 950 psi f 1900 psi e 1 8x10. 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. The typical standard for the spacing on the roof trusses is 24 inches.

These standards are as follows. After the braces are in place you will mark the distance from the edge of the building to where you would like to attach your first truss. This is most likely the standard size that you will find on pre made roof trusses. Almost all residential trusses use this spacing.

The standard roof truss spacing is 2.