Free Tool
Warning Line
Coverage
Calculator
Enter your work area dimensions and get an instant OSHA-compliant materials estimate — how many 105 ft flag rolls and stanchions you need, calculated to the 6 ft setback rule.
Area Shape
Area Dimensions
ft
ft
Stanchion Spacing
ft
OSHA maximum is 6 ft (29 CFR 1926.502). Closer spacing improves visibility.
Your Materials Estimate
Warning Line Length
—
Linear feet
105 ft Rolls Needed
—
Rolls (105 ft each)
Stanchions Needed
—
At 6 ft spacing
Warning line perimeter calculated with the OSHA-required 6 ft setback from each edge (29 CFR 1926.502). Add 10–15% to all quantities as a buffer for waste and corners.