Typical Steel Stair Stringer Size

It is equal to the number of treads multiplied by the typical tread depth b.

Typical steel stair stringer size.

General 3d layout the detailer specifies whether a pan or a grating tread will be used the number of risers required the stringer section size and the stringer offset or distance from top of steel of. Which is a beam 5 inches deep with a weight 9 lb ft. The stair plan below shows the normal stair stringer locations and size as c12x20 7 which is a c channel that is 12 inches deep that weighs 20 7. 1 cm 3 10 6 m 10 3 mm.

Bolts are for alignment purposes only. 1 1 2 11 2 1 1 2. Vertical members which support a handrail. Explore a number of building and housing related calculators as well as hundreds of other calculators involving topics such as finance math fitness health and more.

Either b or c is required. Total run g the total run is the horizontal length of a stair stringer. A vertical post which might provide. 1 in 4 4 16x10 5 mm 4 41 6 cm 4.

Stringers one on either side of the stairs. Typical stair connections bp vb stair to intermediate platform conn. Stair must be welded to platform after install. Though the treads may be supported many other ways.

Treads may be cut to suit other widths. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement. The standard steel sections that are normally used for building stair stringers include steel c channel miscellaneous mc steel channel structural tube steel and steel plate except angle iron. A rail fixed parallel above the pitch line at the sides of a stair.

The stringers are notched so that the risers and treads fit into them. 11 7 3 1 0 1 8 stringer to platform typ. Plate stringers are american stair s most cost effective standard design used on the majority of stairs we fabricate we do the detailing when you specify it. Enter total stair rise inches.

Typical e70xxelect x q r2 0 2x pl 1 4 x3 mc12x10 6 stair to intermediate platform typical connection 1 4 closure pl. Steel platform so the detailer must tell the computer which type of platform to use. Ans steel is a stocking distributor of steel channels in the sizes listed below. Box stringers are a popular choice when a more streamlined or architectural appearance is needed.

We suggest 10 5 for 2x12 or 2 2x6 treads. Code states that this should not be greater than 7 3 4 inches 194 mm. All channels may also be available in aluminum stainless steel brass bronze copper please call ahead for availability. Channel stringers are used when the unit span requires a heavier section it is available in mc or c sizes.

The standard method for specifying the dimensions of a american standard steel channels is like c 5 x 9. Modern steel construction october 1999 sketch 5. Steel stair stringer channels.