Standard Steel Roof Truss Sizes

Girder trusses are designed to carry additional loads other than standard roof loads.

Standard steel roof truss sizes.

Single piece steel joists can be produced up to 90 feet long. 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. Joist girders and lh and dlh series joists available as single or double pitched. 20 inch to 120 inch depths.

Snoot truss click picture to view snoot truss 75 00. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. The standard roof truss spacing is 2. The more complex the truss framework is the greater quantity of these joints will be required.

This is the distance between trusses. Bar joist are 24 00 per foot on sizes of 10 16 20 and 24 feet. Spaced sheathing or 1x boards may be reduced slightly. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases.

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. The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. Spans for 2x4 top chord trusses using sheathing other than plywood e g.

This document aims to apply to aussteel steel wall frames and trusses within the subsequent general limitations. 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. 20 foot to 120 foot spans. 30 feet is available for 27 00 per foot.

Common or standard trusses are symmetrical and have standard four inch heels. 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. These steel joints are needed to support the overall truss. These standards are as follows.

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