Engineering & Calculations
Interactive tools to estimate open area, weight, and load selection.
Open area calculator
Calculate percentage open area for round, square, and slotted perforation patterns.
Weight estimator
Estimate sheet and panel weight across steel, aluminum, and stainless alloys.
Load span selection
Review uniform and concentrated load capacities for bar grating configurations.
Industrial metal calculators
Estimate perforated open areas, calculate sheet weights across alloys, and check bearing bar depths based on standard NAAMM guidelines.
60° staggered round is the most common pattern offering optimal strength and flow.
Estimates only — for final engineering specifications, consult our applications engineering team or a licensed structural engineer.
Need custom alloy fabrication or verified load stamps?
Our engineering department provides precise CAD submittals and load certificates for commercial and industrial bids.
Engineering articles and design notes
Explore load metrics, open-area formulas, and fabrication standards for industrial metal applications.