Standard Steel Roof Truss Sizes

05425 cold formed steel trusses roof truss spans every trussteel roof truss is a custom design based upon the unique load span bearing use and code criteria of a particular project.

Standard steel roof truss sizes.

Spans for 2x4 top chord trusses using sheathing other than plywood e g. Bar joist are 24 00 per foot on sizes of 10 16 20 and 24 feet. Single piece steel joists can be produced up to 90 feet long. This document aims to apply to aussteel steel wall frames and trusses within the subsequent general limitations.

20 foot to 120 foot spans. Crating and bundling for a box truck this is necessary when not shipping on a flatbed truck. This is the distance between trusses. A residential structures and light commercial structures b maximum wind rating of n2 c4 c maximum truss spacing of 3000mm d tile and sheet roof construction e standard stud spacings of 450mm to 600mm centres f standard wall heights up to 6000mm g 70 90mm standard stud widths h single and double storey construction.

The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. Trusses must be designed for any special loading such as concentrated loads from hanging partitions or air conditioning units and snow loads caused by driftingnearparapetorslide offfromhigherroofs. 20 inch to 120 inch depths.

Spaced sheathing or 1x boards may be reduced slightly. Joist girders and lh and dlh series joists available as single or double pitched. Snoot truss click picture to view snoot truss 75 00. Girder trusses are designed to carry additional loads other than standard roof loads.

Typical roof truss spacing means that they are usually about 24 inches from centre which means at the centre of one truss there will be a two foot gap or twenty four inch gap until the centre of the next truss. These steel joints are needed to support the overall truss. About product and suppliers. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge.

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. The standard roof truss spacing is 2. 30 feet is available for 27 00 per foot. These standards are as follows.

The same thing is true for the bridge of the truss.