Standard Steel Roof Truss Sizes

Spans for 2x4 top chord trusses using sheathing other than plywood e g.

Standard steel roof truss sizes.

This document aims to apply to aussteel steel wall frames and trusses within the subsequent general limitations. 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. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge.

20 foot to 120 foot spans. About product and suppliers. The load span tables shown below demonstrate only a tiny subset of the possible combinations available with trussteel cfs roof trusses. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases.

The same thing is true for the bridge of the truss. 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. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss.

Girder trusses are designed to carry additional loads other than standard roof loads. The standard roof truss spacing is 2. Crating and bundling for a box truck this is necessary when not shipping on a flatbed truck. 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.

20 inch to 120 inch depths. 30 feet is available for 27 00 per foot. This is the distance between trusses. The more complex the truss framework is the greater quantity of these joints will be required.

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. 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. These standards are as follows. Single piece steel joists can be produced up to 90 feet long.

These steel joints are needed to support the overall truss.