For wood trusses with a total load of around 180 pounds per lineal foot (30 pounds per square foot spaced one at six foot or two at 12 feet), a single 24 foot span 4/12 slope truss weight should be about 125 pounds.

How do you calculate the weight of a truss?

determine the weight of your truss, divide by the length, and that will give you the weight of the truss in pounds-per-foot (PLF). Divide that number by the truss spacing = PSF.

How do you calculate the weight of a steel truss?

Multiply the Span by the Height to calculate the area: 24ft x 4ft = 96 sq-ft. area. Multiply that by the weight of our material (2psf), and we get a total weight of 192 lbs. This is the total weight of all the material to be added to the face of the truss.