Timber Roof Truss Design Guide

Each successive truss should then be spaced correctly and fixed back to the first truss with temporary ties to top chord at a maximum spacing of 3000mm and to bottom chord at a maximum spacing of 4000mm.

Timber roof truss design guide.

We create our projects using pamir which is special design software for designing roof and wall structures. Do not attempt to design a timber roof truss structure without adult supervision from a qualified professional preferably an experienced timber engineer. Just send us your project and receive a free price quote and timber truss plan. Roof trusses are capable of supporting service loads from heating units air conditioned units hot water service etc.

The standard roof truss spacing is 2. Provided the design takes them into account. The first truss should be erected correctly straight and vertical and temporarily braced in position. Dutch hip end roof trusses.

1 4 services 1 4 1 general. This is the distance between trusses. This document is intended to be used by engineers to provide guidance in designing and evaluating timber roof truss structures. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases.

You will also incur additional costs because it is much harder to deck and shingle a roof that is 12 12 pitch versus a 4 12 roof. Tfec 4 2020 page 2. The timber roof truss design guide can go up against different style that when nitty gritty right can ooze a cutting edge feel. Our engineers will create the best and most economical solution for your building.