Storage Capacity
Grain bin capacity (bushels)
  bushels = cubic feet x .8
  cubic feet = bushels x 1.25

Corn crib capacity (bushels)
  bushels = cubic feet x .4
  cubic feet = bushels x 2.50

Estimating grain and roughage
   volumes

1. Shelled corn, soybeans, and other
      grains (bushels)                                     
    Round bin: diameter x diameter x
      average depth x .628 (all in feet)
    Rectangular bin: length x width x 
      average depth x .8 (all in feet)

2. Ear corn (bushels)
    Round crib: distance around crib x
      diameter x depth x .1 (all in feet)
    Rectangular crib: length x width x
      depth x .4 (all in feet)

3. Hay (tons): length x width x height /
      500 (all in feet)

4. Straw (tons): length x width x height / 
      1,000 (all in feet)

                                       

 5. Corn silage (tons at 65 percent moisture):
   
 a. Upright Solo (tons):

 Height                  Diameter (ft)
   (ft)           18       20       22       24       30
   40          202      249     300     356     557
   50          227      342     416     493     771
   60          361      445     538     638   1,000
   70                                          790   1,235
   80                                          949   1,478

                                                                 
  
b. Bunker Silo (tons per feet of length):

Bottom                  Depth (ft)
width (ft)         8        10       12       16       20
   20             3.5      4.5       5.5      
   30             5.0      6.5       7.9     10.9
   40             6.6      8.5      10.3     14.1   18.0
   50             8.2     10.5     12.7     17.3   22.0
   60                       12.5     15.1     20.5   26.0
   70                                   17.5    23.7   30.0
   80                                   19.9    26.9   34.0
  100                                            33.3   42.0

For haylage at 50 percent moisture multiply
  by .715.