You can't have yards of cement in that sense. You need yards cubed.
Convert all the feet measurements to yards and then multiply then together
V= l w h
13*13*6=1014 yards of cement
It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.
108 sq ft
tweleve
16.02
13*13*6=1014 yards of cement
You would need 31.88 cubic yards of topsoil to cover 855 sq feet at 6 inches deep.
It depends on how deep it is. If it is 6 inches deep, you will need 77 yards.
a little bit more than 2 yards. (225 sq. ft x 0.25 ft thick) /27cu.ft/yard = 2.08333333....yards
108 sq ft
62/3 cubic yards for every 1-foot deep. 5 cubic yards for every 9-inches deep. 31/3 cubic yards for every 6-inches deep. 5/9 cubic yard for every 1-inch deep.
tweleve
1 cubic yard will cover 15 square yards at 3 inches deep.
To cover 6 acres with two feet of soil requires 3227 cubic yards of soil. This would require about 1100 3 yard dump truck trips.
Usually a cubic yard will cover 15 square yards at 3 inches deep so I would reckon on 22 cubic yards. Hold on that I've got that wrong it's 2 cubic yards .Sorry.
three
16.02