SECTION
K
FEED
STORAGE STRUCTURES
CONTENTS
Section Page
K1 FEED
STORAGE STRUCTURES K.i
Approximate
Corn Silage Storage Capacity of Tower
Silos
in Tons (upright Silos at 65 percent moisture) K1.1
Approximate
Dry Matter Capacity of Silos in Tons K1.3
Capacity
of Silos for 30% Moisture Shelled Corn, In Tons K1.3
Amount
of Silage in 2" and 3" Layers in Tower Silos K1.4
Horizontal
Silo Capacity, Wet Tons K1.5
Horizontal
Silo Capacity, Dry Matter K1.5
Suggested
Bunker and Trench Silo Sizes K1.6
Dimensions,
Cross‑Sectional Area of Bunker and
Trench
Silos and Weight of Silage in 4‑inch
Slice
and Per Linear Foot K1.7
Volume
of Cylindrical Storage, Per Foot of Depth
(Bushels
of Grain) K1.8
Ear
Corn Crib Capacities in Bushels per Linear Foot K1.9
Ear
Corn Cribs ‑ Recommended Widths K1.10
Approximate
Grain Capacities of Semicircular
Building
Per Foot of Length K1.10
Approximate
Hay Capacity for Semicircular Cross‑
Section Building (Tons Per Foot of Length) K1.10
Approximate
Hay Capacity for Straight Sidewall
Storages,
Tons Per Foot of Length K1.11
Approximate
Storage Space Requirements for Forage
and
Bedding Materials K1.12
Bushels
of Shelled Corn Remaining From
1000
Bushels of High Moisture Corn if
Dried
to 15.5% Moisture Content K1.13
Storage
Volumes for Bulk Materials K1.14
Capacities
of Hopper Bottom Bins K1.15
SECTION KI
FEED
STORAGE STRUCTURES
Table
K1.1: Approximate Corn Silage Storage Capacity of Silo in Tons
(upright
Silos at 65 percent moisture1)
Silo Silo
Diameter (feet)
Height
Feet 10 12 14 16 18 20 22 24 26 28 30
20 22.9 34.3 45.8 60.1 77.2 94.4 114.4 134.4 160.2 185.9 211.6
24 31.5 42.9 60.1 77.2 97.2 123.0 148.7 174.5 205.9 237.4 274.6
28 37.2 54.3 74.4 100.1 125.8 151.6 183.0 217.4 257.4 297.4 340.3
32 45.8 65.8 91.5 117.3 148.7 185.9 223.1 266.0 311.7 363.2 414.7
36 54.3 80.1 105.8 137.3 177.3 217.4 263.1 311.7 368.9 429 491.9
40 62.9 91.5 125.8 163.0 205.9 254.5 306.2 363.2 429 494.8 569.1
44 - 105.8 143 185.9 234.5 291.7 351.8 420.4 491.9 572 654.9
48 - 120.1 160.2 211.6 266.0 328.9 400.4 474.8 557.7 646.7 743.6
52 -
- 183.0 237.4 300.3 368.9 449.0 532.0 626.3 726.4 832.3
56 -
- 203.1 263.2 334.6 411.8 497.6 592.0 695.0 806.5 926.6
60 -
- 223.1 291.7 368.9 454.7 549.1 652.1 780.8 888.7 1,021.0
64 -
- - - 406.1 497.6 600.6 715 852.3 972.4 1,118.3
68 -
- - - 443.3 543.4 652.1 777.9 926.6 1,058.2 1,215.5
72 -
- - - - -
- 838.0 1,001 1,144 1,309.9
76 -
- - - - -
- 898.0 1,075.4 1,221.2 1,398.5
80 -
- - - - -
- 955.2 1,121.1 1,301.3 1,487.2
84 -
- - - - -
- - 1,206.9 1,387.1 1,573
88 -
- - - - -
- - 1,278.4 1,472.9 1,653.1
92 -
- - - - -
- - 1,367.1 1,550.1 1,738.9
96 -
- - - - -
- - 1,435.7 1,635.9 1,821.8
100 -
- - - - -
- 1,510.1 1,721.7 1,924.8
Table
K1.2: Approximate Dry Matter Capacity of Silos in Tons*
Silo Silo
Diameter (feet)
Height
Feet 10 12 14 16 18 20 22 24 26 28 30
20 8 12 16 21 27 33 40 47 56 65 74
24 11 15 21 27 34 43 52 61 72 83 96
28 13 19 26 35 44 53 64 76 90 104 119
32 16 23 32 41 52 65 78 93 109 127 145
36 19 28 37 48 62 76 92 109 129 150 172
40 22 32 44 57 72 89 107 127 150 173 199
44 - 37 50 65 82 102 123 147 172 200 229
48 - 42 56 74 93 115 140 166 195 226 260
52 -
- 64 83 105 129 157 186 219 254 291
56 -
- 71 93 117 144 174 207 243 282 324
60 -
- 78 102 129 159 192 228 273 309 357
64 -
- - - 142 174 210 250 298 340 391
68 -
- - - 155 190 228 272 324 370 425
72 -
- - - - -
- 293 350 400 458
76 -
- - - - -
- 314 376 427 489
80 -
- - - - - - 334 392 455 520
84 -
- - - - -
- - 422 485 550
88 -
- - - - -
- - 447 515 578
92 -
- - - - -
- - 478 542 608
96 -
- - - - -
- - 502 572 637
100 -
- - - - -
- - 528 602 673
* Capacities allow one foot unused depth for
settling in silos up to 30 ft. high, and one additional foot for each 10 ft.
beyond 30 ft. height.
Tons
of moist silage = tons of dry matter times dry matter factor.
Dry
matter factor = 100/(100 % moisture
Table K1.3:
Capacity of Silos for 30% Moisture Shelled Corn, In Tons*
Silo Silo Diameter
(feet)
Height
Feet 10 12 14 16 17 18 20
20 36 52 71 93
105 118 145
22 40 58 79 103 116 130 160
24 44 63 86 112 126 142 175
26 47 68 93 122 138 154 190
28 51 74 100 131 148 166 205
30 55 79 108 141 159 178 220
32 58 84 115 150 169 190 234
34
- 90 122 161 182 202 249
36
- 95 130 169 191 214 264
38
- 101 137 179 202 226 279
40
- 106 144 188 212 238 294
42
- - 152 198 223 250 309
44
- - 159 207 234 263 324
46
- - 166 217 245 275 339
48
- - 74 227 256 287 354
50
- - - 236 266 299 369
52
- - - 246 278 312 385
54
- - - 256 289 324 401
56
- - - 266 300 337 416
58
- - - 276 312 350 432
60
- - - 287 324 363 448
*Tonage will increase approximately 5% with moisture
content from 25 to 35%.
Table
K1.4: Amount of Silage in 2" and 3" Layers in Tower Silos*
2"
Layer 3" Layer
Inside
Diameter
(Feet) Cu.
Ft. Pounds Cu. Ft. Pounds
───────────────────────────────────────────
6 20.0 34 30.0 51
12 18.8 940 28.2 1410
14
25.7 1283 38.5 1925
16
33.5 1675 50.2 2510
18 42.4 2120 63.6 3180
20
52.4 2620 78.5 3930
22 63.4 3170
95.0 4750
24 75.5 3770 113.0 5650
26 88.5 4430 132.5 6645
28 102.5 5125 154.0 7700
30 118.0 5900 176.5 8850
───────────────────────────────────────────
*When silage averages 50
pounds per cubic foot.
Table K1.5: Horizontal Silo Capacity, Wet Tons Per
10 Feet of Length
@ 40 Pounds/Foot3
(Level Full)
Depth
Silo Width
Feet 10 15 20 25 30 35 40 45 50
10 20 30 40
50 60 70 80 90 100
12 24 36 48
60 72 84 96 108 120
14 28 42 56
70 84 98 112 126 140
16 32 48 64
80 96 112 128 144 160
18 36 54 72
90 108 126 144 162 180
20 40 60 80 100 120 140 160 180 200
Table K1.6: Horizontal Silo Capacity, Dry Matter
Tons Per 10 Feet of Length @ 14 Pounds/Foot3 (Level Full)
Depth
Silo Width
Feet 10 15 20 25 30 35 40 45
50
10
7 10.5 14 17.5 21 24.5 28 31.5 35
12
8.4 12.6 16.8 21 25.2 29.4 33.6 37.8 42
14
9.8 14.7 19.6 24.5 29.4 34.3 39.2 44.1 49
16 11.2 16.8 24.4 28 33.6 39.2 44.8 50.4 56
18 12.6 18.9 25.2 31.5 37.8 44.1 50.4 56.7 63
20 14 21 28 35 42 49 56 63 70
Table
K1.7: Suggested Bunker and Trench Silo Sizes*
Silo
Length (ft.) For Approximate
Number
Width Feeding Season of: Capacity
of Bottom Top Depth 140 175 210
per Linear Foot
Cows (Feet) (Feet) (Feet) Days Days Days (Tons)
10** 8 11 6 27 34 41 1.0
15
8 11 6 41 51 61
1.0
20
8 12 8 38 48 58
1.4
25
8 12 8 48 60 72
1.4
30 10 14 8
48 60 72 1.7
40 12 16 8
55 69 83 2.0
50 12 16 8
69 86 103 2.0
75 12 16 8 103 129 155
2.0
100 16 20 8 107 134 160
2.5
* Based on settled silage weighing 35 pounds per
cubic foot and a daily feeding rate of 35 pounds per cow. An allowance of 10%
is made for spoilage and wastage.
** Less than a 3-inch
slice removed daily.
Table K1.8: Dimensions, Cross-sectional Area of
Bunker and Trench Silos and Weight of Silage in 4-inch Slice and Per Linear
Foot1
|
Side Slope Per Foot of Depth (inches)
|
Depth
|
Bottom Width
|
Top Width
|
Cross-sectional Area
|
Weight of Silage
|
|
4-Inch Slice
|
1-Foot Slice
|
|
|
Feet
|
Feet
|
Feet
|
Inches
|
Square Feet
|
Pounds
|
Pounds
|
|
|
4
|
6
|
7
|
0
|
26.0
|
346
|
1040
|
|
|
4
|
10
|
11
|
0
|
42.0
|
560
|
1680
|
|
|
6
|
8
|
9
|
6
|
52.5
|
700
|
2100
|
|
|
6
|
12
|
13
|
6
|
76.5
|
1015
|
3060
|
|
|
8
|
10
|
12
|
0
|
88.0
|
1173
|
3520
|
|
|
8
|
14
|
16
|
0
|
120.0
|
1600
|
4800
|
|
|
10
|
12
|
14
|
6
|
132.5
|
1767
|
5300
|
|
1 1/2
|
10
|
16
|
18
|
6
|
172.5
|
2300
|
6900
|
|
|
4
|
6
|
8
|
0
|
28.0
|
373
|
1120
|
|
|
4
|
10
|
12
|
0
|
44.0
|
587
|
1760
|
|
|
6
|
8
|
11
|
0
|
57.0
|
760
|
2280
|
|
|
6
|
12
|
15
|
0
|
81.0
|
1080
|
3240
|
|
|
8
|
10
|
14
|
0
|
96.0
|
1280
|
3840
|
|
|
8
|
14
|
18
|
0
|
128.0
|
1767
|
5120
|
|
|
10
|
12
|
17
|
0
|
145.0
|
1933
|
5800
|
|
3
|
10
|
16
|
21
|
0
|
185.0
|
2467
|
7400
|
|
|
4
|
6
|
8
|
8
|
29.0
|
387
|
1160
|
|
|
4
|
10
|
12
|
8
|
45.2
|
603
|
1808
|
|
|
6
|
7
|
11
|
0
|
54.0
|
720
|
2160
|
|
|
6
|
12
|
16
|
0
|
84.0
|
1120
|
3360
|
|
|
8
|
10
|
15
|
4
|
102.7
|
1369
|
4180
|
|
|
8
|
14
|
19
|
4
|
134.7
|
1796
|
5388
|
|
|
10
|
12
|
18
|
8
|
153.3
|
2044
|
6132
|
|
4
|
10
|
16
|
22
|
8
|
193.3
|
2577
|
7732
|
1For silage weighing 40 pounds per cubic foot.
Table
K1.9: Ear Corn Crib Capacities in Bushels per Linear Foot**
(Based
on 2-1/2 cubic feet of ear corn required to yield 1 bushel of shelled corn.)
|
Depth of Corn (in feet)
|
Width of Crib in Feet
|
|
|
|
|
|
|
|
6
|
7
|
8
|
9
|
10
|
11
|
|
5
|
12.00
|
14.00
|
16.00
|
18.00
|
20.00
|
22.00
|
|
6
|
14.40
|
16.80
|
19.20
|
21.60
|
24.00
|
26.40
|
|
7
|
16.80
|
19.60
|
22.40
|
25.20
|
28.00
|
30.80
|
|
8
|
19.20
|
22.40
|
25.60
|
28.80
|
32.00
|
35.20
|
|
9
|
21.60
|
25.20
|
|
