Answer:
If I had the dimensions of the ramp, I would:
W = width
L = length
H = height
X x Y = size of hole
(one top piece) L x W (then subtract XxY for cutout)
(two side pieces) 1/2 x L x H (because they're triangles)
(one end piece) W x H
now, add those together, multiply by 2 for 2 coats, then divide by 25 to get the number of pints of paint needed.
