How To Design Wood Roof Trusses

As an alternative you can make your own gusset plates out of plywood.

How to design wood roof trusses. Wood trusses are manufactured in a warehouse away from weather elements which means rain or shine trusses can be built and then shipped out to a worksite. Size the bottom chord 0 25 inches 0 64 cm longer than the floor. Feb 16 2016 you may refer to a truss as the rafter but it s basically the skeleton of the roof carrying the weight of the frame and supporting the walls of the building. Trusses are very important to preventing the walls from bending or flexing more so.

Our truss designers have all completed truss technician training from the structural building components association. Designing your truss 1. The more complex the truss framework is the greater quantity of these joints will be required. As well running an attic air duct system can be very difficult if the roof trusses were not designed for that application.

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. Hammer each gusset plate into the wood until the teeth are fully driven in and the plate sits flush against the lumber. The very first step for building roof trusses is to prepare a design layout that can be sketched by a professional architect or can also be done by using a software that is specifically meant to design a roof truss. With a more defined.

Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Roof truss design 1 24 span 2 web with plywood gussets figure 1 figure 1 roof truss 24 span 2 web with plywood gussets detailed information for a 2 web roof truss with a 24 span with plywood gussets. Determining a truss system comes down to how much weight and stress the roof must sustain. Decide on a material to use for building your truss system.

Cut plywood gusset plates to fasten. Incorporate overhanging top chords to add extra visual flair. Roof truss spans up to 86 and floor truss spans up to 40 with depths from 12 to 24. How to design a roof truss.

Start by noting the exact length of the. Different materials such as steel and timber are commonly used to design roof. The same thing is true for the bridge of the truss. Also our trusses are manufactured using computerized systems so the process is quicker and more exact.

Turn the entire truss over and repeat this process on the other side. The second step in building a roof truss is to prepare the materials needed. Side by side comparisons have been completed and roof trusses win the prize for speed.