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R-Panel has the physical specifications needed for commercial projects while maintaining the affordability to fit any residential roofing application, making them one of our most popular products.

Section Properties

Panel Guage Fy (KSI) THK (IN) WT (PSF) FB (KSI) Top In Compression Bottom In Compression
Ix (IN. 4/ft) Sx (IN. 3/ft) Mom't (Ft. Lbs.) Ix (IN. 4/ft) Sx (IN. 3/ft) Mom't (Ft. Lbs.)
26 80 0.020 0.892 48 0.0046 0.0047 188 0.043 0.046 184
55 0.020 0.892 33 0.0046 0.0047 129 0.044 0.046 128
Panel Guage Fy (KSI) THK (IN) WT (PSF) FB (KSI) Top In Compression Bottom In Compression
Ix (IN. 4/ft) Sx (IN. 3/ft) Mom't (Ft. Lbs.) Ix (IN. 4/ft) Sx (IN. 3/ft) Mom't (Ft. Lbs.)
24 80 0.024 1.080 48 0.0056 0.0057 227 0.054 0.056 224
55 0.024 1.080 33 0.0056 0.0057 156 0.055 0.056 155

Allowable Uniform Loads
( In pounds per square foot )

Panel Guage Ky (KSI) Span Cond. Maximum Total Uniform Load in PSF
L 4'-0 L 5'-0 L 6'-0 L 7'-0 L 7'-6"
26 80 Simple S 94.1 60.2 41.8 30.7 26.8
61.9 31.7 18.3 11.6 9.4
2-Span S 91.7 58.7 40.8 30.0 26.1
27.8 22.6
3-Span S 114.7 73.4 51.0 37.4 32.6
59.8 35.4 22.3 18.1
55 Simple S 64.7 41.4 28.8 21.1 18.4
62.5 32.0 18.5 11.7 9.5
2-Span S 63.9 40.9 28.4 20.9 18.2
3-Span S 79.8 51.1 35.5 26.1 22.7
34.9 22.0 17.9


Panel Guage Ky (KSI) Span Cond. Maximum Total Uniform Load in PSF
L 4'-0 L 5'-0 L 6'-0 L 7'-0 L 7'-6"
26 80 Simple S 113.5 72.6 50.4 37.1 32.3
75.6 38.7 22.4 14.1 11.5
2-Span S 112.1 71.7 49.8 36.6 31.9
33.9 27.6
3-Span S 140.1 89.7 62.3 45.7 39.8
73.0 42.3 26.6 21.6
55 Simple S 78.0 49.9 34.7 25.5 22.2
75.8 38.8 22.4 14.1 11.5
2-Span S 77.8 49.8 34.6 25.4 22.1
3-Span S 97.2 62.2 43.2 31.7 27.6
42.4 26.7 21.7
S= MAXIMUM SAFE LOAD (May be increased 33% for wind loads ∆= MAXIMUM LOAD LIMITED BY DEFLECTION= l /180