Roof truss plates usually they are made of galvanized steel if wondering why you should build roof trusses, you should ask an expert about the proper support of the roof and its weight. trusses are used to stabilize and support the walls, especially in large buildings that have more than 1 or 2. Learning how to install roof trusses for a garage roof isn�t hard, particular if you follow particular hints and tips. cutting the timbers; the first thing you should do when building roof trusses is to cut timber panels to the garage roof�s size. measure the roof�s span and check with the building project and plan.. Upgrading to storage trusses on a 24 x 24- ft. garage would only raise the price about $200. storage trusses have a wide-open area in the center, about 12 ft. wide for a truss with a 24-ft. span, and a 2
