Where Can You Get Type B Metal Deck Load Tables for a Permit?
Load tables come from the deck supplier's catalog. Ours covers 1.5" Type B in 22 to 16 gauge with section properties, ASD (Omega = 1.67) shear and web crippling, uniform downward and upward loads, L/240 deflection loads and construction spans, calculated per AISI S100 and ANSI/SDI standards. Contact us for the catalog pages and any permit documentation your project needs.
What the Type B tables include
- Section properties and flexural resistance (Se, Id, Mn/Omega) per foot of width.
- Shear and web crippling at 1.5", 2" and 3" bearing lengths.
- ASD uniform downward and upward loads for single, double and triple spans from 5'-0" to 10'-0".
- Loads causing L/240 deflection, with multipliers for L/120, L/180 and L/360.
- Construction spans for a 200 lb load on a 1 ft width, including cantilevers.
How to use them correctly
Loads are uniformly distributed superimposed loads in psf, with span measured center to center of supports. The catalog states that tabulated loads may not be increased by assuming clear span, and that web crippling and shear are not built into the uniform load tables. The catalog is reference data, not an engineering service; the engineer of record signs the design.
SDI publishes its standards at sdi.org. Send us your plans and we will include product data with your quote.
Related Questions
Are catalog load tables enough for a permit?
They support the design, but the permit relies on the engineer of record's drawings and calculations, which use these tables along with code loads. Some jurisdictions also ask for roof assembly approvals. Confirm the submittal list with your building department.
What standards are the tables based on?
Our Type B tables cite AISI S100-2012 and S100-2016 and ANSI/SDI RD-2017, C-2017, NC-2017 and SD-2022. The ASD safety factor shown is 1.67. Loads are uniformly distributed superimposed loads in psf, with span measured center to center of supports. The engineer of record confirms the design.