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28 PNEG-214 12'-18' Cor-Lok and Cut-Lok Flooring
11. 20 Gauge Floor Support Requirements
20 Gauge Grandstand Chart - 4.00" Corrugation
Wide/4.00" Corrugation - 20 Gauge Grandstand Floor Support Chart
* For Aeration Systems recessed in the concrete, add one (1) ring for proper spacing.
When using FL-3102-3 or FL-3102-6 (3", 6") Grandstands, increase the listed quantities by 33%
(Standard Quantity x 1.33).
Quantities of Grandstands are minimum required for installation - Due to varying conditions
and construction techniques at floor and wall penetrations, additional supports may need to
be ordered.
How to read the chart: For example, a 12' diameter bin with 5 rings would have spacing of 54/27
(the top numbers). Meaning A=54" and B=27". The number of supports needed would be 62,
(the bottom number).
Full Floor Supports Required for Plank Type Flooring 4.00" Corrugation
(* Based upon 13.5" or taller floor heights)
Rings 12 15 18 21 24 27 30 33 36 39 42 45 48 54 60 72 75 78 90 105
SUPPORT SPACING
SUPPORT QUANTITY
3
54/27
62
58/29
80
54/27
120
52/26
150
56/28
202
54/27
249
50/25
333
50/25
390
50/25
470
50/25
576
46/23
695
52/26
735
48/24
869
4
54/27
62
54/27
88
54/27
120
52/26
160
52/26
214
48/24
275
50/25
333
50/25
390
50/25
470
50/25
576
46/23
695
48/24
775
48/24
869
46/23
1156
44/22
1430
5
54/27
62
52/26
96
48/24
138
50/25
168
48/24
224
48/24
275
48/24
347
46/23
425
44/22
523
46/23
606
46/23
695
44/22
836
44/22
933
42/21
1236
42/21
1477
6
48/24
70
48/24
100
48/24
138
46/23
182
46/23
230
44/22
303
44/22
363
44/22
435
44/22
523
42/21
656
42/21
751
42/21
866
42/21
977
40/20
1296
38/19
1650
7
42/21
75
42/21
110
42/21
144
42/21
190
42/21
249
42/21
309
42/21
387
40/20
480
40/20
565
40/20
686
38/19
821
38/19
946
38/19
1057
36/18
1416
34/17
1779
8
42/21
75
42/21
110
42/21
144
42/21
190
40/20
265
40/20
319
38/19
417
36/18
525
36/18
620
36/18
746
34/17
900
34/17
1036
34/17
1163
32/16
1566
32/16
1883
9
38/19
80
40/20
115
38/19
166
38/19
220
38/19
277
36/18
355
34/17
471
34/17
555
32/16
695
32/16
830
32/16
951
30/15
1156
30/15
1303
30/15
1660
28/14
2160
28/15
3550
24/12
3850
24/12
4160
22/11
5970
20/10
8820
10
36/18
90
34/17
130
34/17
180
34/17
230
34/17
300
34/17
380
32/16
500
32/16
600
30/15
750
28/14
930
30/15
1010
28/14
1230
28/14
1390
26/13
1870
24/12
2460
22/11
3820
22/11
4150
22/11
4480
20/10
6480
18/9
9680
11
32/16
95
30/15
150
32/16
190
32/16
250
32/16
320
32/16
400
30/15
520
30/15
650
28/14
790
26/13
990
26/13
1140
24/12
1400
24/12
1590
24/12
2000
22/11
2650
20/10
4150
20/10
4500
20/10
4870
18/9
7120
16/8
10760
12
28/14
100
28/14
160
28/14
210
28/14
280
28/14
360
28/14
450
28/14
550
28/14
670
26/13
840
24/12
1060
24/12
1220
22/11
1510
22/11
1710
20/10
2350
20/10
2880
18/9
4550
18/9
4950
18/9
5340
16/8
7910
16/8
10760
13
26/13
110
26/13
170
26/13
220
26/13
290
24/12
400
24/12
510
24/12
630
24/12
760
24/12
900
22/11
1140
22/11
1320
20/10
1640
20/10
1860
18/9
2570
18/9
3170
16/8
5060
16/8
5500
16/8
5940
16/8
7910
14/7
12150
14
22/11
260
22/11
340
22/11
440
22/11
550
22/11
680
22/11
820
20/10
1060
20/10
1240
20/10
1430
18/9
1800
18/9
2040
16/8
2860
16/8
3520
16/8
5060
16/8
5500
16/8
5940
14/7
8920
14/7
12150
15
20/10
370
20/10
480
20/10
600
20/10
740
20/10
890
20/10
1060
18/9
1360
18/9
1570
18/9
1800
16/8
2270
16/8
2860
16/8
3520
14/7
5710
14/7
6200
14/7
6710
14/7
8920
12/6
13990
16
18/9
400
18/9
520
18/9
660
18/9
810
18/9
970
18/9
1160
18/9
1360
18/9
1570
16/8
2000
16/8
2270
16/8
2860
14/7
3970
12/6
6580
12/6
7140
12/6
7730
12/6
10280
17
CUT-LOK only if Dia.
and number of
Rings are in bottom
shaded area.
16/8
580
16/8
730
16/8
900
16/8
1080
16/8
1290
16/8
1510
16/8
1750
16/8
2000
16/8
2270
14/7
3230
14/7
3970
12/6
6580
12/6
7140
12/6
7730
18
16/8
580
16/8
730
16/8
900
16/8
1080
16/8
1290
16/8
1510
16/8
1750
16/8
2000
14/7
2560
14/7
3230
12/6
4570
19
14/7
820
14/7
1010
14/7
1220
14/7
1450
14/7
1700
14/7
1970
14/7
2260
14/7
2560
12/6
3720
12/6
4570
20
12/6
950
12/6
1160
12/6
1410
12/6
1670
12/6
1960
12/6
2270
12/6
2600
12/6
2950
12/6
3720
21
12/6
950
12/6
1160
12/6
1410
12/6
1670
12/6
1960
12/6
2270
12/6
2600
12/6
2950
22
23
All floor styles OK for
bin sizes in upper
shaded area.
18 Gauge COR-LOK
or CUT-LOK
if Dia. and number of
Rings are in middle
unshaded area.