Rack Deck - Load Tables

Below are common capacity figures for our corrugated steel decking when used in pallet rack, shelving or mezzanine flooring applications. These load table figures are expressed in "psf" pounds per square foot. If you have any questions, about this section, or your application is off of these charts, please contact us to review your particular need.

Punch Deck: Open Area, Water Drainage Decking
Standard Decking Pallet Rack Decking Wide-Span / Shelving Decking	Mezzanine Decking 1.5" High Box Rib Decking 3" High "N" Deck

Punch Deck: Open Area, Water Drainage Decking

Punch Deck Load Tables
*English*	Rack Depth - lb/sq. ft.
	36"	42"	48"	50"	54"	60"	66"	72"
Punch Deck ® 101	200	135	91	80	64
Punch Deck ® 201	225	194	130	115	91	70	50
Punch Deck ® 301	250	200	178	158	125	92	70	50

Pallet Rack Decking

Based on uniform load distribution. Figures below are pounds per sq. ft. based on stress of 20,000psi.

How to calculate, for example:
48" deep x 108" wide rack bay.
1.) 48" x 108" = 5,184" ÷ 144 = 36 sq. feet
2.) Box Rib 22ga. @ 48" = 210 lbs. Psf. (see table below)
3.) 210 psf x 36 sq. ft. = 7,560 lbs. Capacity per level.

Load Table - Capacity chart for "B" deck material:
Box Rib & Flat Rib Decking -- 1.5" high

Rack Bay Depth -- Between Beams (Front -to- Back)
Rack Depth	24"	28"	32"	36"	42"	44"	48"	54"	60"
22 Gauge "B" Box Rib	989	695	515	397	283	256	210	147	108
20 Gauge "B" Box Rib	1221	857	636	490	350	316	262	186	136
18 Gauge "B" Box Rib	1659	1166	864	666	475	430	356	262	190

22 Gauge "F" Flat Rib	740	505	365	275	195	175	145	110	85
20 Gauge "F" Flat Rib	895	610	440	330	235	210	175	130	102
18 Gauge "F" Flat Rib	1160	790	570	430	305	275	225	170	130
Load Tables...Lbs./Sq. Ft.

Wide-Span / Shelving Decking

Load Capacity Table for - Sturdy Rib Deck (9/16" high) & Heavy Duty HD-Rib (7/8" decking)

Based on uniform load distribution. Figures below are pounds per sq. ft. based on stress of 20,000 psi.

Shelving Bay Depth -- Between Beams (Font -to- Back)
Rack Depth	24"	28"	32"	36"	42"	44"	48"	54"	60"
26 Gauge	114	72	48	34	Call To Review 800-909-4937
24 Gauge	155	98	65	46
22 Gauge	188	118	79	55
Load Tables...Lbs./Sq. Ft.

Mezzanine Decking

NOTE: The longer unsupported span the greater the deflection and thus a decreasing load carrying capacity. When a single panel can span more openings (with less seams), the greater the panel capacity (see below). Typically a 12 ft. panel (to cover 3 x4 ft. openings) would be provided in 12 ft. 3" for overlapping purposes.

1.5" High Box Rib Decking
Based on Uniform Load Distribution (no point loading), dead & live loads, in pounds per square foot.

Open Span ––>	4 ft.	4.5 ft.	5 ft.	5.5 ft.	6 ft.	6.5 ft.
Single Span Decking
22 Gauge "B" Box Rib	155	122	92	72	58	47
20 Gauge "B" Box Rib	189	150	114	88	70	58
18 Gauge "B" Box Rib	256	202	159	122	96	78
Double Span Decking (1pcs. of decking covering 2 open areas)
22 Gauge "B" Box Rib	162	128	104	86	72	61
20 Gauge "B" Box Rib	200	158	128	106	89	76
18 Gauge "B" Box Rib	262	207	168	139	116	99
Triple Span Decking (1pcs. of decking covering 3 or more open areas)
22 Gauge "B" Box Rib	203	160	130	107	89	72
20 Gauge "B" Box Rib	250	197	160	132	111	89
18 Gauge "B" Box Rib	328	259	210	173	146	123
Load Tables...Lbs./Sq. Ft.

3" High "N" Deck --for extra long span conditions
Based on Uniform Load Distribution (no point loading), dead & live loads, in pounds per square foot.

Open Span ––>	7.5 ft.	8 ft.	8.5 ft.	9 ft.	9.5 ft.	10 ft.
Single Span Decking
22 Gauge "N" Box Rib	90	79	70	62	56	50
20 Gauge "N" Box Rib	117	102	91	81	72	54
18 Gauge "N" Box Rib	168	148	131	117	103	90
Double Span Decking (1pcs. of decking covering 2 open areas)
22 Gauge "N" Box Rib	110	97	85	76	68	62
20 Gauge "N" Box Rib	137	120	107	95	85	77
18 Gauge "N" Box Rib	185	163	144	129	115	104
Triple Span Decking (1pcs. of decking covering 3 or more open areas)
22 Gauge "N" Box Rib	137	121	107	95	85	77
20 Gauge "N" Box Rib	171	151	133	119	107	96
18 Gauge "N" Box Rib	232	204	180	161	144	130
Load Tables...Lbs./Sq. Ft.