| PJB - 2/14/2019 07:35 Well, I'll be the odd man out. I come up with about 510 pounds for the main part, not including the cone, which would be about a 1/4 ton. That is assuming the 12 foot is circumference and not diameter. I divided 12 by 3.14 to get diameter and divided that by 2 to get radius and then used 3.14 x radius squared x height of 3.5 feet to arrive at 12.77 cubic feet. Using Crete's value of 40 pounds per cubic foot, multiply 40 by 12.77 and arrive at 510.8 pounds which is close to 1/4 ton. Paul
When I do your same formula I get 40.12 ft3 for the volume of the cylinder.
((12/3.14)/2)2 x 3.14 x 3.5 = 40.12 ft3 x 40 lbs/cu ft = 1605 lbs in the cylinder
With the cone and packing the top full it might hold 2000 lbs of shell corn and pellets (45 lbs/cu ft) but it won't hold 2000 lbs of ground hog feed (40 lbs/cu ft).
Also keep in mind that your circumference (and the calculated diameter) measurement is likely an outside measurement. I would expect that the inside diameter measurement is an inch or more smaller do to the thickness of the plastic wall.
Reducing the diameter by 1 inch takes away 3.4 cu ft.
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How much will it hold? With pic
