Total LB. per Deck or Pair of Beams
(ratings for evenly distributed loads)
Corrugated Steel Decking (2 supports per deck)
Depth
Beam Length
3'
4'
5'
6'
7'
8'
8'2"
18"
2600
2600
2440
2010
1720
1500
1460
24"
2260
2600
2440
2010
1720
1500
1460
30"
1230
1660
2100
2010
1720
1500
1460
36"
880
1180
1500
1810
1720
1500
1460
42"
710
950
1210
1460
1710
1500
1460
48"
590
780
1000
1210
1410
1500
1460
50"
570
760
950
1160
1350
1500
1460
54"
510
690
860
1040
1220
1400
1420
60"
460
630
780
950
1100
1270
1290
Sprinkler Deck
Depth
Beam Length
3'
4'
5'
6'
7'
8'
8'2"
18"
-
2490
2440
2010
1720
1500
1460
24"
-
2490
2440
2010
1720
1500
1460
30"
-
1660
2080
2010
1720
1500
1460
36"
-
950
1200
1440
1690
1500
1460
42"
-
760
960
1160
1360
1500
1460
48"
-
630
790
960
1130
1290
1310
50"
-
600
760
920
1080
1240
1270
54"
-
550
690
830
970
1110
1140
60"
-
490
630
760
890
1020
1030
Medium Density Fiberboard (4 supports per deck)
Depth
Beam Length
3'
4'
5'
6'
7'
8'
8'2"
18"
1950
2600
2440
2010
1720
1500
1460
24"
1950
2600
2440
2010
1720
1500
1460
30"
1890
2600
2440
2010
1720
1500
1460
36"
1510
2600
2440
2010
1720
1500
1460
42"
1400
2600
2440
2010
1720
1500
1460
48"
1170
2300
2320
2010
1720
1500
1460
50"
1120
2210
2230
1930
1650
1500
1460
54"
690
1410
1420
1430
1440
1450
1450
60"
540
1070
1070
1070
1070
1070
1070
Steel Beam Pair
Depth
Beam Length
3'
4'
5'
6'
7'
8'
8'2"
2750
2600
2440
2010
1720
1500
1460
Bulk Storage Rack Upright Frames:
10,500 lb. per frame for beams on 36" maximum centers and lowest beams
18" maximum above the floor.
8,300 lb. per frame for beams on 48" maximum centers and lowest beams 24"
maximum above the floor.
If beams are not used at the bottom of posts, posts must be anchored
to the floor.
If beams are used at the bottom, this bottom storage level does not count in
figuring the allowable frame loading.
Note that footplates make it easier to level the racks, and proper leveling is
essential.