PSF ROT formula correctly expressed as which option?

• A. (Area × Thickness × 12) ÷ 2500
• B. Area × Thickness × 12 ÷ 2000
• C. (Area × Thickness × 12) ÷ 1000
• D. Area × Thickness × 12 ÷ 3000

Answer: (B)

This question tests how to convert a panel’s footprint and thickness into a pounds-per-square-foot (PSF) rating using a standard conversion. The expression multiplies the area by the thickness and then applies a fixed conversion factor to yield PSF ROT. The 12 serves as a unit conversion that brings the thickness into a compatible scale for a per-square-foot result, and dividing by 2000 applies the standard scaling constant used in these practice problems to turn that product into a PSF value. Among the given forms, using the 2000 divisor matches the conventional constant used in Tilt-Up practice, so the overall expression correctly yields the PSF ROT. For example, with an area of 100 ft^2 and thickness of 4 inches, you’d compute 100 × 4 × 12 = 4800, then 4800 ÷ 2000 = 2.4 PSF ROT. The other divisors would scale the result differently and do not align with the standard practice values.