A division of Brodhead steel

Load Calculator
Determine the Type of Grating You Need
Width of Bar
Depth of Bar
Grating Mesh
Span in Feet
  1. Use decimal numbers only.
  2. Concentrated Load is at mid span across one foot of width.
  3. To calculate Aluminum I-Bar values, use a bar thickness of 0.1875" and the depth of the I-Bar.
  4. Fiberstress calculations use 12,000 psi for aluminum, and 18,000 psi for steel.
Calculate   Clear

at 1/4"
Uniform Load psf
Concentrated Load
at 1/4" deflection Span/360
Uniform Load psf
Concentrated Load
Notice: This load calculator is an attempt to reproduce for your convenience those design values found in the National Association of Architectural Metal Manufacturers (NAAMM) specifications. We assume no responsibility for their accuracy or proper use. A licensed engineer should verify all results.

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