Cubic area of bed with topper?

[InLimbo]

Anyone know? Specifically 91-97 model F350's....

Thanks!

[madpogue]

Long bed? Cab-high topper or higher? Well, its 8' long by aprx. 6' wide. I'm WAGgin' it's 3' from the bed floor to the roof of a cab-high topper. Thats 8x6x3 = 144 cubic feet. Subtract the volume of the wheel wells, account for the inward-up angles of the topper, correct for parallax, carry the two, account for the moon's phase, 30 days has September, state and local taxes, and you're probably looking at 120-ish ft^3 of useable space.