Roof Truss Shop Drawings

Individual truss designs or engineer approved stamped drawings for a project are also available.
Roof truss shop drawings. 24 28 30 32 34 36 38 40 42 44 48 50 60 truss. Sure there may be an instance where stick framing is your only option and that is understandable. Truss design drawings have long been a source of confusion for contractors design professionals and building inspectors alike. One of the first things that i questioned when asked to review truss shop drawings was how do i decipher these odd looking dimension strings.
Dec 15 2013 free truss plans. Use this valuable tool to educate your market and increase understanding of the important information presented on truss design drawings. Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. The pros of using roof trusses drastically outweigh the pros of stick framing.
Reading a mitek shop drawing 1 job name 2 truss label 3 truss type 4 truss quantity 5 number of plies 6 job description 7 software version 8a cumulated dimensions of top chord panel lengths are added together along the top chord of truss. Master permit shop drawings 9 truss design drawings shall indicate the support and minimum bearing of the roof structural system the permanent cross lateral bracing bracing to transfer member buckling forces to the structure and all bracing and anchorage required to resist uplift and lateral forces. This stands for feet inches sixteenths. Just remember the acronym.
The answer is a convention of the truss producing industry. 4 this truss has been designed for a live load of 20 0 psf on the bottom chord in all areas where a rectangle 3 6 0 tall by 2 0 0 wide will fit between the bottom chord and any other members. But 99 of the time a roof truss is going to give you so much more. 5 bearing at joint s 10 considers parallel to grain value using ansi tpi 1 angle to grain formula.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. Here are the pros of trusses. The final page lists tips for crews to follow in order to avoid installation errors.