We make reasonable arrangements for the production plan and strive to achieve balanced production according to the production capacity, so as to reduce the production cost of Stainless Bar Grating, Welded Bar Grating, Galvanized Stair Treads. We promote the healthy development of the industry through horizontal integration and enhance the synergy effect through vertical integration. We strive to build a set of self-motivating, self-restraining and human resource operation mechanism that promotes outstanding talents to stand out. We are good at putting ourselves in their shoes, taking customers as the center, insisting on service first, thinking of customers everywhere, providing considerate service, equality and mutual benefit, and harmony and win-win situation.
The heavy duty bar grating is resistance welded to ensure maximum strength, durability, and safety. And it can withstand repeatedly heavy loads. We provide heavy duty carbon steel grating and heavy duty stainless steel grating to meet customer needs. The heavy duty grating is considered to be ideal grids for heavy-duty areas such as highways, parking lots, loading docks, ramps, airports, truck and bus terminals, buses, freight stations, subways and industrial plants.
The Specification is As Follows:
* Standard Widths: 2′, 3′, and 4′ in 20′ lengths.
* Standard bearing bars: 1/4″, 5/16″, and 3/8″ thick.
* Bars range from 1″ to 8″ deep.

Main Features
* High load-bearing capacity
* Good slip resistance
* Easy to install and remove
* Various surface treatments
Applications
* Machinery Protection – Can be used to protect machinery from being damaged by falling objects.
* Ventilation Grilles – Ensure the smooth flow of air.
* Stairs Treads – Provide good slip resistance.
* Fencing – Protect people and property from being damaged by falling objects.
* Handrails – Good load-bearing capacity and can be used as handrails.

Technical Parameters
15 Space (15/16") Load Table
Bearing Bar Size (inches) | Section Modulus Per Foot of Width | Moment of Inertia Per Foot of Width | Approx. Weight psf | Maximum Safe Span | ||||||
H-25 Load | H-20 Load | H-15 Load | Auto Traffic | 5 Ton Forklift | 3 Ton Forklift | 1 Ton Forklift | ||||
1x1/4 | 0.533 | 0.267 | 12.0 | 1'-1" | 1'-0" | 0'-10" | 1'-2" | 0'-8" | 0'-7" | 0'-8" |
1x5/16 | 0.667 | 0.333 | 14.7 | 1'-3" | 1'-2" | 1'-0" | 1'-5" | 0'-9" | 0'-8" | 0'-9" |
1x3/8 | 0.800 | 0.400 | 17.4 | 1'-4" | 1'-3" | 1'-1" | 1'-7" | 0'-10" | 0'-8" | 0'-11" |
1-1/4x1/4 | 0.833 | 0.521 | 14.7 | 1'-4" | 1'-3" | 1'-1" | 1'-8" | 0'-10" | 0'-9" | 0'-11" |
1-1/4x5/16 | 1.042 | 0.651 | 18.1 | 1'-6" | 1'-5" | 1'-3" | 1'-11" | 1'-0" | 0'-10" | 1'-1" |
1-1/4x3/8 | 1.250 | 0.781 | 21.5 | 1'-8" | 1'-6" | 1'-4" | 2'-1" | 1'-1" | 0'-11" | 1'-4" |
1-1/2x1/4 | 1.200 | 0.900 | 17.4 | 1'-8" | 1'-6" | 1'-4" | 2'-3" | 1'-1" | 0'-11" | 1'-3" |
1-1/2x5/16 | 1.500 | 1.125 | 21.5 | 1'-10" | 1'-8" | 1'-6" | 2'-6" | 1'-3" | 1'-1" | 1'-7" |
1-1/2x3/8 | 1.800 | 1.350 | 25.6 | 2'-0" | 1'-10" | 1'-8" | 2'-9" | 1'-4" | 1'-3" | 1'-10" |
1-3/4x1/4 | 1.633 | 1.429 | 20.2 | 1'-11" | 1'-9" | 1'-7" | 2'-10" | 1'-3" | 1'-2" | 1'-8" |
1-3/4x5/16 | 2.042 | 1.786 | 24.9 | 2'-2" | 2'-0" | 1'-10" | 3'-2" | 1'-6" | 1'-5" | 2'-1" |
1-3/4x3/8 | 2.450 | 2.144 | 29.7 | 2'-5" | 2'-3" | 2'-1" | 3'-6" | 1'-9" | 1'-8" | 2'-6" |
2x1/4 | 2.133 | 2.133 | 22.9 | 2'-3" | 2'-0" | 1'-10" | 3'-6" | 1'-7" | 1'-5" | 2'-2" |
2x5/16 | 2.667 | 2.667 | 28.3 | 2'-6" | 2'-4" | 2'-2" | 3'-11" | 1'-10" | 1'-9" | 2'-8" |
2x3/8 | 3.200 | 3.200 | 33.8 | 2'-10" | 2'-8" | 2'-6" | 4'-3" | 2'-1" | 2'-1" | 3'-2" |
2-1/4x1/4 | 2.700 | 3.038 | 25.6 | 2'-7" | 2'-4" | 2'-2" | 4'-2" | 1'-10" | 1'-9" | 2'-8" |
2-1/4x5/16 | 3.375 | 3.797 | 31.7 | 2'-11" | 2'-9" | 2'-7" | 4'-5" | 2'-2" | 2'-2" | 3'-4" |
2-1/4x3/8 | 4.050 | 4.556 | 37.8 | 3'-4" | 3'-2" | 3'-0" | 4'-9" | 2'-7" | 2'-6" | 3'-11" |
2-1/2x1/4 | 3.333 | 4.167 | 28.3 | 2'-11" | 2'-9" | 2'-7" | 4'-7" | 2'-2" | 2'-2" | 3'-4" |
2-1/2x5/16 | 4.167 | 5.208 | 35.1 | 3'-5" | 3'-3" | 3'-1" | 4'-11" | 2'-8" | 2'-7" | 4'-1" |
2-1/2x3/8 | 5.000 | 6.250 | 41.9 | 3'-10" | 3'-9" | 3'-7" | 5'-3" | 3'-1" | 3'-1" | 4'-5" |
3x1/4 | 4.800 | 7.200 | 33.8 | 3'-9" | 3'-7" | 3'-6" | 5'-6" | 3'-0" | 3'-0" | 4'-8" |
3x5/16 | 6.000 | 9.000 | 41.9 | 4'-5" | 4'-4" | 4'-2" | 5'-11" | 3'-7" | 3'-8" | 5'-0" |
3x3/8 | 7.200 | 10.800 | 50.1 | 4'-8" | 4'-7" | 4'-7" | 6'-4" | 4'-3" | 4'-4" | 5'-4" |
3-1/2x1/4 | 6.533 | 11.433 | 39.2 | 4'-9" | 4'-7" | 4'-6" | 6'-5" | 3'-11" | 3'-11" | 5'-5" |
3-1/2x5/16 | 8.167 | 14.292 | 48.7 | 5'-1" | 5'-1" | 5'-1" | 6'-11" | 4'-9" | 4'-10" | 5'-10" |
3-1/2x3/8 | 9.800 | 17.150 | 58.2 | 5'-5" | 5'-4" | 5'-5" | 7'-4" | 5'-2" | 5'-3" | 6'-3" |
4x1/4 | 8.533 | 17.067 | 44.6 | 5'-4" | 5'-4" | 5'-4" | 7'-4" | 4'-11" | 5'-1" | 6'-3" |
4x5/16 | 10.667 | 21.333 | 55.5 | 5'-9" | 5'-9" | 5'-9" | 7'-11" | 5'-6" | 5'-8" | 6'-8" |
4x3/8 | 12.800 | 25.600 | 66.4 | 6'-1" | 6'-1" | 6'-2" | 8'-5" | 5'-11" | 6'-0" | 7'-2" |
4-1/2x1/4 | 10.800 | 24.300 | 50.1 | 6'-0" | 6'-0" | 6'-0" | 8'-3" | 5'-9" | 5'-11" | 7'-0" |
4-1/2x5/16 | 13.500 | 30.375 | 62.3 | 6'-6" | 6'-6" | 6'-6" | 8'-11" | 6'-3" | 6'-4" | 7'-7" |
4-1/2x3/8 | 16.200 | 36.450 | 74.6 | 6'-10" | 6'-10" | 6'-11" | 9'-6" | 6'-7" | 6'-9" | 8'-0" |
5x1/4 | 13.333 | 33.333 | 55.5 | 6'-8" | 6'-8" | 6'-9" | 9'-2" | 6'-5" | 6'-7" | 7'-9" |
5x3/8 | 20.000 | 50.000 | 82.7 | 7'-7" | 7'-8" | 7'-8" | 10'-6" | 7'-4" | 7'-6" | 8'-11" |
5x1/2 | 26.667 | 66.667 | 109.9 | 8'-4" | 8'-5" | 8'-5" | 11'-7" | 8'-1" | 8'-3" | 9'-10" |
6x1/4 | 19.200 | 57.600 | 66.4 | 8'-0" | 8'-0" | 8'-1" | 11'-1" | 7'-8" | 7'-10" | 9'-4" |
6x3/8 | 28.800 | 86.400 | 99.0 | 9'-1" | 9'-2" | 9'-2" | 12'-8" | 8'-10" | 9'-0" | 10'-9" |
6x1/2 | 38.400 | 115.200 | 131.7 | 10'-0" | 10'-1" | 10'-2" | 13'-11" | 9'-9" | 9'-11" | 11'-10" |
7x1/4 | 26.133 | 91.467 | 77.3 | 9'-3" | 9'-4" | 9'-5" | 12'-11" | 9'-0" | 9'-2" | 10'-11" |
7x3/8 | 39.200 | 137.200 | 115.4 | 10'-7" | 10'-8" | 10'-9" | 14'-9" | 10'-4" | 10'-6" | 12'-6" |
7x1/2 | 52.267 | 182.933 | 153.4 | 11'-8" | 11'-9" | 11'-10" | 16'-3" | 11'-4" | 11'-7" | 13'-9" |
19 Space (1-3/16") Load Table
Bearing Bar Size (inches) | Section Modulus Per Foot of Width | Moment of Inertia Per Foot of Width | Approx. Weight psf | Maximum Safe Span | ||||||
H-25 Load | H-20 Load | H-15 Load | Auto Traffic | 5 Ton Forklift | 3 Ton Forklift | 1 Ton Forklift | ||||
1x1/4 | 0.421 | 0.211 | 9.7 | 1'-0" | 0'-10" | 0'-9" | 1'-0" | 0'-7" | 0'-6" | 0'-7" |
1x5/16 | 0.526 | 0.263 | 11.9 | 1'-1" | 1'-0" | 0'-10" | 1'-2" | 0'-8" | 0'-7" | 0'-8" |
1x3/8 | 0.632 | 0.316 | 14.0 | 1'-2" | 1'-1" | 0'-11" | 1'-4" | 0'-9" | 0'-8" | 0'-9" |
1-1/4x1/4 | 0.658 | 0.411 | 11.9 | 1'-3" | 1'-1" | 1'-0" | 1'-5" | 0'-9" | 0'-8" | 0'-10" |
1-1/4x5/16 | 0.822 | 0.514 | 14.5 | 1'-4" | 1'-3" | 1'-1" | 1'-8" | 0'-10" | 0'-9" | 1'-0" |
1-1/4x3/8 | 0.987 | 0.617 | 17.2 | 1'-6" | 1'-4" | 1'-2" | 1'-11" | 1'-0" | 0'-10" | 1'-2" |
1-1/2x1/4 | 0.947 | 0.711 | 14.0 | 1'-6" | 1'-4" | 1'-2" | 1'-11" | 0'-11" | 0'-10" | 1'-1" |
1-1/2x5/16 | 1.184 | 0.888 | 17.2 | 1'-8" | 1'-6" | 1'-4" | 2'-3" | 1'-1" | 0'-11" | 1'-4" |
1-1/2x3/8 | 1.421 | 1.066 | 20.4 | 1'-10" | 1'-8" | 1'-6" | 2'-6" | 1'-2" | 1'-1" | 1'-7" |
1-3/4x1/4 | 1.289 | 1.128 | 16.2 | 1'-9" | 1'-7" | 1'-5" | 2'-5" | 1'-2" | 1'-0" | 1'-5" |
1-3/4x5/16 | 1.612 | 1.410 | 19.9 | 1'-11" | 1'-9" | 1'-7" | 2'-11" | 1'-4" | 1'-3" | 1'-9" |
1-3/4x3/8 | 1.934 | 1.692 | 23.7 | 2'-2" | 1'-11" | 1'-9" | 3'-2" | 1'-6" | 1'-5" | 2'-1" |
2x1/4 | 1.684 | 1.684 | 18.3 | 2'-0" | 1'-10" | 1'-8" | 3'-1" | 1'-4" | 1'-3" | 1'-10" |
2x5/16 | 2.105 | 2.105 | 22.6 | 2'-3" | 2'-1" | 1'-11" | 3'-6" | 1'-7" | 1'-6" | 2'-4" |
2x3/8 | 2.526 | 2.526 | 26.9 | 2'-6" | 2'-4" | 2'-2" | 3'-10" | 1'-10" | 1'-9" | 2'-9" |
2-1/4x1/4 | 2.132 | 2.398 | 20.4 | 2'-3" | 2'-1" | 1'-11" | 3'-9" | 1'-7" | 1'-6" | 2'-4" |
2-1/4x5/16 | 2.664 | 2.998 | 25.3 | 2'-7" | 2'-5" | 2'-3" | 4'-2" | 1'-11" | 1'-10" | 2'-11" |
2-1/4x3/8 | 3.197 | 3.597 | 30.1 | 2'-10" | 2'-8" | 2'-7" | 4'-5" | 2'-2" | 2'-2" | 3'-5" |
2-1/2x1/4 | 2.632 | 3.289 | 22.6 | 2'-6" | 2'-4" | 2'-3" | 4'-4" | 1'-10" | 1'-10" | 2'-10" |
2-1/2x5/16 | 3.289 | 4.112 | 28.0 | 2'-11" | 2'-9" | 2'-7" | 4'-8" | 2'-3" | 2'-3" | 3'-6" |
2-1/2x3/8 | 3.947 | 4.934 | 33.3 | 3'-4" | 3'-2" | 3'-0" | 4'-11" | 2'-7" | 2'-7" | 4'-2" |
3x1/4 | 3.789 | 5.684 | 26.9 | 3'-3" | 3'-1" | 2'-11" | 5'-2" | 2'-6" | 2'-6" | 4'-1" |
3x5/16 | 4.737 | 7.105 | 33.3 | 3'-9" | 3'-7" | 3'-6" | 5'-7" | 3'-0" | 3'-1" | 4'-9" |
3x3/8 | 5.684 | 8.526 | 39.8 | 4'-4" | 4'-2" | 4'-1" | 5'-11" | 3'-7" | 3'-8" | 5'-1" |
3-1/2x1/4 | 5.158 | 9.026 | 31.2 | 4'-0" | 3'-10" | 3'-9" | 6'-0" | 3'-3" | 3'-4" | 5'-2" |
3-1/2x5/16 | 6.447 | 11.283 | 38.7 | 4'-9" | 4'-8" | 4'-7" | 6'-6" | 4'-0" | 4'-1" | 5'-7" |
3-1/2x3/8 | 7.737 | 13.539 | 46.2 | 5'-0" | 5'-0" | 5'-0" | 6'-11" | 4'-8" | 4'-10" | 5'-11" |
4x1/4 | 6.737 | 13.474 | 35.5 | 4'-11" | 4'-10" | 4'-9" | 6'-11" | 4'-2" | 4'-3" | 5'-11" |
4x5/16 | 8.421 | 16.842 | 44.1 | 5'-5" | 5'-5" | 5'-5" | 7'-5" | 5'-1" | 5'-3" | 6'-4" |
4x3/8 | 10.105 | 20.211 | 52.7 | 5'-8" | 5'-8" | 5'-9" | 7'-11" | 5'-6" | 5'-8" | 6'-9" |
4-1/2x1/4 | 8.526 | 19.184 | 39.8 | 5'-7" | 5'-7" | 5'-8" | 7'-9" | 5'-1" | 5'-4" | 6'-8" |
4-1/2x5/16 | 10.658 | 30.375 | 49.4 | 6'-0" | 6'-0" | 6'-1" | 8'-4" | 5'-10" | 6'-0" | 7'-2" |
4-1/2x3/8 | 12.789 | 28.776 | 59.1 | 6'-5" | 6'-5" | 6'-5" | 8'-11" | 6'-2" | 6'-4" | 7'-7" |
5x1/4 | 10.526 | 26.316 | 44.1 | 6'-3" | 6'-3" | 6'-3" | 8'-8" | 6'-0" | 6'-2" | 7'-5" |
5x3/8 | 15.789 | 39.474 | 65.5 | 7'-1" | 7'-1" | 7'-2" | 9'-11" | 6'-11" | 7'-1" | 8'-6" |
5x1/2 | 21.053 | 52.632 | 87.0 | 7'-10" | 7'-10" | 7'-11" | 10'-11" | 7'-7" | 7'-9" | 9'-4" |
6x1/4 | 15.158 | 45.474 | 52.7 | 7'-5" | 7'-5" | 7'-6" | 10'-4" | 7'-3" | 7'-5" | 8'-11" |
6x3/8 | 22.737 | 68.211 | 78.4 | 8'-6" | 8'-6" | 8'-7" | 11'-10" | 8'-3" | 8'-6" | 10'-2" |
6x1/2 | 30.316 | 90.947 | 104.2 | 9'-4" | 9'-4" | 9'-5" | 13'-1" | 9'-1" | 9'-4" | 11'-2" |
7x1/4 | 20.632 | 72.211 | 61.2 | 8'-8" | 8'-8" | 8'-9" | 12'-1" | 8'-5" | 8'-8" | 10'-4" |
7x3/8 | 30.947 | 108.316 | 91.3 | 9'-11" | 9'-11" | 10'-0" | 13'-10" | 9'-8" | 9'-11" | 11'-10" |
7x1/2 | 41.263 | 144.421 | 121.4 | 10'-10" | 10'-11" | 11'-0" | 15'-3" | 10'-7" | 10'-11" | 13'-1" |
22 Space (1-3/8") Load Table
Bearing Bar Size (inches) | Section Modulus Per Foot of Width | Moment of Inertia Per Foot of Width | Approx. Weight psf | Maximum Safe Span | ||||||
H-25 Load | H-20 Load | H-15 Load | Auto Traffic | 5 Ton Forklift | 3 Ton Forklift | 1 Ton Forklift | ||||
1x1/4 | 0.364 | 0.182 | 8.5 | 0'-11" | 0'-10" | 0'-9" | 0'-11" | 0'-7" | 0'-6" | 0'-6" |
1x5/16 | 0.455 | 0.227 | 10.4 | 1'-0" | 0'-11" | 0'-10" | 1'-1" | 0'-8" | 0'-6" | 0'-7" |
1x3/8 | 0.545 | 0.273 | 12.2 | 1'-1" | 1'-0" | 0'-11" | 1'-3" | 0'-9" | 0'-7" | 0'-9" |
1-1/4x1/4 | 0.568 | 0.355 | 10.4 | 1'-2" | 1'-0" | 0'-11" | 1'-4" | 0'-9" | 0'-7" | 0'-9" |
1-1/4x5/16 | 0.710 | 0.444 | 12.7 | 1'-3" | 1'-2" | 1'-0" | 1'-6" | 0'-10" | 0'-8" | 0'-11" |
1-1/4x3/8 | 0.852 | 0.533 | 15.0 | 1'-5" | 1'-3" | 1'-1" | 1'-9" | 0'-11" | 0'-9" | 1'-1" |
1-1/2x1/4 | 0.818 | 0.614 | 12.2 | 1'-5" | 1'-3" | 1'-1" | 1'-9" | 0'-11" | 0'-9" | 1'-0" |
1-1/2x5/16 | 1.023 | 0.767 | 15.0 | 1'-7" | 1'-5" | 1'-3" | 2'-1" | 1'-0" | 0'-11" | 1'-3" |
1-1/2x3/8 | 1.227 | 0.920 | 17.8 | 1'-8" | 1'-6" | 1'-4" | 2'-5" | 1'-1" | 1'-0" | 1'-6" |
1-3/4x1/4 | 1.114 | 0.974 | 14.1 | 1'-8" | 1'-6" | 1'-3" | 2'-3" | 1'-1" | 0'-11" | 1'-4" |
1-3/4x5/16 | 1.392 | 1.218 | 17.3 | 1'-10" | 1'-8" | 1'-6" | 2'-8" | 1'-2" | 1'-1" | 1'-8" |
1-3/4x3/8 | 1.670 | 1.462 | 20.6 | 2'-0" | 1'-10" | 1'-8" | 3'-0" | 1'-4" | 1'-3" | 1'-11" |
2x1/4 | 1.455 | 1.455 | 16.0 | 1'-10" | 1'-8" | 1'-6" | 2'-10" | 1'-3" | 1'-2" | 1'-9" |
2x5/16 | 1.818 | 1.818 | 19.7 | 2'-1" | 1'-11" | 1'-9" | 3'-4" | 1'-5" | 1'-5" | 2'-1" |
2x3/8 | 2.182 | 2.182 | 23.4 | 2'-4" | 2'-1" | 2'-0" | 3'-8" | 1'-8" | 1'-7" | 2'-6" |
2-1/4x1/4 | 1.841 | 2.071 | 17.8 | 2'-1" | 1'-11" | 1'-9" | 3'-5" | 1'-6" | 1'-5" | 2'-2" |
2-1/4x5/16 | 2.301 | 2.589 | 22.0 | 2'-4" | 2'-2" | 2'-0" | 4'-0" | 1'-9" | 1'-8" | 2'-8" |
2-1/4x3/8 | 2.761 | 3.107 | 26.2 | 2'-8" | 2'-6" | 2'-4" | 4'-3" | 2'-0" | 2'-0" | 3'-2" |
2-1/2x1/4 | 2.273 | 2.841 | 19.7 | 2'-4" | 2'-2" | 2'-0" | 4'-2" | 1'-8" | 1'-8" | 2'-7" |
2-1/2x5/16 | 2.841 | 3.551 | 24.3 | 2'-8" | 2'-6" | 2'-5" | 4'-6" | 2'-0" | 2'-0" | 3'-3" |
2-1/2x3/8 | 3.409 | 4.261 | 28.9 | 3'-0" | 2'-10" | 2'-9" | 4'-9" | 2'-4" | 2'-4" | 3'-10" |
3x1/4 | 3.273 | 4.909 | 23.4 | 2'-11" | 2'-9" | 2'-8" | 5'-0" | 2'-3" | 2'-3" | 3'-8" |
3x5/16 | 4.091 | 6.136 | 28.9 | 3'-5" | 3'-3" | 3'-2" | 5'-4" | 2'-9" | 2'-9" | 4'-7" |
3x3/8 | 4.909 | 7.364 | 34.5 | 3'-11" | 3'-9" | 3'-8" | 5'-8" | 3'-2" | 3'-4" | 4'-11" |
3-1/2x1/4 | 4.455 | 7.795 | 27.1 | 3'-8" | 3'-6" | 3'-5" | 5'-10" | 2'-11" | 3'-0" | 5'-0" |
3-1/2x5/16 | 5.568 | 9.744 | 33.6 | 4'-4" | 4'-2" | 4'-1" | 6'-3" | 3'-7" | 3'-8" | 5'-5" |
3-1/2x3/8 | 6.682 | 11.693 | 40.1 | 4'-10" | 4'-10" | 4'-10" | 6'-8" | 4'-2" | 4'-5" | 5'-9" |
4x1/4 | 5.818 | 11.636 | 30.8 | 4'-5" | 4'-4" | 4'-3" | 6'-8" | 3'-9" | 3'-10" | 5'-9" |
4x5/16 | 7.273 | 14.545 | 38.2 | 5'-2" | 5'-2" | 5'-2" | 7'-2" | 4'-6" | 4'-9" | 6'-2" |
4x3/8 | 8.727 | 17.455 | 45.6 | 5'-6" | 5'-6" | 5'-6" | 7'-7" | 5'-3" | 5'-5" | 6'-7" |
4-1/2x1/4 | 7.364 | 16.568 | 34.5 | 5'-4" | 5'-3" | 5'-3" | 7'-6" | 4'-7" | 4'-10" | 6'-5" |
4-1/2x5/16 | 9.205 | 20.710 | 42.8 | 5'-9" | 5'-9" | 5'-10" | 8'-1" | 5'-7" | 5'-9" | 6'-11" |
4-1/2x3/8 | 11.045 | 24.852 | 51.2 | 6'-2" | 6'-2" | 6'-2" | 8'-7" | 5'-11" | 6'-1" | 7'-5" |
5x1/4 | 9.091 | 22.727 | 38.2 | 5'-11" | 6'-0" | 6'-0" | 8'-4" | 5'-7" | 5'-11" | 7'-2" |
5x3/8 | 13.636 | 34.091 | 56.8 | 6'-9" | 6'-10" | 6'-10" | 9'-6" | 6'-7" | 6'-10" | 8'-3" |
5x1/2 | 18.182 | 45.455 | 75.3 | 7'-6" | 7'-6" | 7'-7" | 10'-6" | 7'-3" | 7'-6" | 9'-1" |
6x1/4 | 13.091 | 39.273 | 45.6 | 7'-1" | 7'-2" | 7'-2" | 10'-0" | 6'-11" | 7'-2" | 8'-7" |
6x3/8 | 19.636 | 58.909 | 67.9 | 8'-1" | 8'-2" | 8'-3" | 11'-5" | 7'-11" | 8'-2" | 9'-10" |
6x1/2 | 26.182 | 78.545 | 90.1 | 8'-11" | 9'-0" | 9'-1" | 12'-7" | 8'-9" | 9'-0" | 10'-10" |
7x1/4 | 17.818 | 62.364 | 53.1 | 8'-3" | 8'-4" | 8'-5" | 11'-8" | 8'-1" | 8'-4" | 10'-1" |
7x3/8 | 26.727 | 93.545 | 79.0 | 9'-5" | 9'-6" | 9'-7" | 13'-4" | 9'-3" | 9'-6" | 11'-6" |
7x1/2 | 35.636 | 124.727 | 105.0 | 10'-5" | 10'-6" | 10'-7" | 14'-8" | 10'-2" | 10'-6" | 12'-8" |
30 Space (1-7/8") Load Table
Bearing Bar Size (inches) | Section Modulus Per Foot of Width | Moment of Inertia Per Foot of Width | Approx. Weight psf | Maximum Safe Span | ||||||
H-25 Load | H-20 Load | H-15 Load | Auto Traffic | 5 Ton Forklift | 3 Ton Forklift | 1 Ton Forklift | ||||
1x1/4 | 0.267 | 0.133 | 6.6 | 0'-9" | 0'-9" | 0'-8" | 0'-10" | 0'-6" | 0'-5" | 0'-6" |
1x5/16 | 0.333 | 0.167 | 7.9 | 0'-11" | 0'-10" | 0'-8" | 0'-11" | 0'-7" | 0'-6" | 0'-7" |
1x3/8 | 0.400 | 0.200 | 9.3 | 1'-0" | 0'-11" | 0'-9" | 1'-1" | 0'-8" | 0'-6" | 0'-8" |
1-1/4x1/4 | 0.417 | 0.260 | 7.9 | 1'-0" | 0'-11" | 0'-10" | 1'-1" | 0'-8" | 0'-6" | 0'-8" |
1-1/4x5/16 | 0.521 | 0.326 | 9.6 | 1'-1" | 1'-0" | 0'-11" | 1'-3" | 0'-9" | 0'-7" | 0'-9" |
1-1/4x3/8 | 0.625 | 0.391 | 11.3 | 1'-3" | 1'-1" | 1'-0" | 1'-6" | 0'-10" | 0'-8" | 0'-11" |
1-1/2x1/4 | 0.600 | 0.450 | 9.3 | 1'-2" | 1'-1" | 1'-0" | 1'-5" | 0'-9" | 0'-8" | 0'-11" |
1-1/2x5/16 | 0.750 | 0.563 | 11.3 | 1'-4" | 1'-3" | 1'-1" | 1'-9" | 0'-10" | 0'-9" | 1'-1" |
1-1/2x3/8 | 0.900 | 0.675 | 13.4 | 1'-6" | 1'-4" | 1'-2" | 2'-0" | 1'-0" | 0'-10" | 1'-3" |
1-3/4x1/4 | 0.817 | 0.715 | 10.6 | 1'-5" | 1'-3" | 1'-2" | 1'-10" | 0'-11" | 0'-10" | 1'-2" |
1-3/4x5/16 | 1.021 | 0.893 | 13.0 | 1'-7" | 1'-5" | 1'-3" | 2'-2" | 1'-0" | 0'-11" | 1'-5" |
1-3/4x3/8 | 1.225 | 1.072 | 15.4 | 1'-9" | 1'-7" | 1'-5" | 2'-7" | 1'-2" | 1'-1" | 1'-8" |
2x1/4 | 1.067 | 1.067 | 12.0 | 1'-7" | 1'-6" | 1'-4" | 2'-3" | 1'-1" | 1'-0" | 1'-6" |
2x5/16 | 1.333 | 1.333 | 14.7 | 1'-10" | 1'-8" | 1'-6" | 2'-9" | 1'-3" | 1'-2" | 1'-10" |
2x3/8 | 1.600 | 1.600 | 17.4 | 2'-0" | 1'-10" | 1'-8" | 3'-3" | 1'-5" | 1'-4" | 2'-2" |
2-1/4x1/4 | 1.350 | 1.519 | 13.4 | 1'-10" | 1'-8" | 1'-6" | 2'-10" | 1'-3" | 1'-2" | 1'-10" |
2-1/4x5/16 | 1.688 | 1.898 | 16.4 | 2'-0" | 1'-10" | 1'-9" | 3'-5" | 1'-5" | 1'-5" | 2'-3" |
2-1/4x3/8 | 2.025 | 2.278 | 19.5 | 2'-3" | 2'-1" | 1'-11" | 3'-11" | 1'-8" | 1'-8" | 2'-8" |
2-1/2x1/4 | 1.667 | 2.083 | 14.7 | 2'-0" | 1'-10" | 1'-8" | 3'-5" | 1'-5" | 1'-5" | 2'-3" |
2-1/2x5/16 | 2.083 | 2.604 | 18.1 | 2'-3" | 2'-1" | 2'-0" | 4'-2" | 1'-8" | 1'-8" | 2'-9" |
2-1/2x3/8 | 2.500 | 3.125 | 21.5 | 2'-6" | 2'-5" | 2'-3" | 4'-5" | 1'-11" | 2'-0" | 3'-3" |
3x1/4 | 2.400 | 3.600 | 17.4 | 2'-6" | 2'-4" | 2'-2" | 4'-7" | 1'-11" | 1'-11" | 3'-2" |
3x5/16 | 3.000 | 4.500 | 21.5 | 2'-10" | 2'-8" | 2'-7" | 5'-0" | 2'-3" | 2'-4" | 3'-11" |
3x3/8 | 3.600 | 5.400 | 25.6 | 3'-3" | 3'-1" | 3'-0" | 5'-3" | 2'-7" | 2'-9" | 4'-8" |
3-1/2x1/4 | 3.267 | 5.717 | 20.2 | 3'-0" | 2'-10" | 2'-9" | 5'-5" | 2'-5" | 2'-6" | 4'-3" |
3-1/2x5/16 | 4.083 | 7.146 | 24.9 | 3'-6" | 3'-5" | 3'-4" | 5'-10" | 2'-11" | 3'-1" | 5'-1" |
3-1/2x3/8 | 4.900 | 8.575 | 29.7 | 4'-0" | 3'-11" | 3'-10" | 6'-2" | 3'-5" | 3'-7" | 5'-5" |
4x1/4 | 4.267 | 8.533 | 22.9 | 3'-7" | 3'-6" | 3'-7" | 6'-2" | 3'-0" | 3'-2" | 5'-5" |
4x5/16 | 5.333 | 10.667 | 28.3 | 4'-1" | 4'-2" | 4'-2" | 6'-8" | 3'-8" | 3'-11" | 5'-10" |
4x3/8 | 6.400 | 12.800 | 33.8 | 4'-11" | 4'-10" | 4'-10" | 7'-1" | 4'-4" | 4'-8" | 6'-2" |
4-1/2x1/4 | 5.400 | 12.150 | 25.6 | 4'-4" | 4'-3" | 4'-2" | 6'-11" | 3'-8" | 3'-11" | 6'-1" |
4-1/2x5/16 | 6.750 | 15.188 | 31.7 | 5'-2" | 5'-1" | 5'-1" | 7'-6" | 4'-6" | 4'-10" | 6'-7" |
4-1/2x3/8 | 8.100 | 18.225 | 37.8 | 5'-7" | 5'-7" | 5'-8" | 7'-11" | 5'-4" | 5'-8" | 7'-0" |
5x1/4 | 6.667 | 16.667 | 28.3 | 5'-1" | 5'-0" | 5'-0" | 7'-8" | 4'-6" | 4'-10" | 6'-9" |
5x3/8 | 10.000 | 25.000 | 41.9 | 6'-3" | 6'-3" | 6'-4" | 8'-10" | 6'-1" | 6'-4" | 7'-9" |
5x1/2 | 13.333 | 33.333 | 55.5 | 6'-10" | 6'-10" | 6'-11" | 9'-8" | 6'-9" | 7'-0" | 8'-7" |
6x1/4 | 9.600 | 28.800 | 33.8 | 6'-6" | 6'-6" | 6'-7" | 9'-3" | 6'-3" | 6'-8" | 8'-2" |
6x3/8 | 14.400 | 43.200 | 50.1 | 7'-5" | 7'-6" | 7'-7" | 10'-7" | 7'-4" | 7'-7" | 9'-4" |
6x1/2 | 19.200 | 57.600 | 66.4 | 8'-2" | 8'-3" | 8'-4" | 11'-8" | 8'-1" | 8'-5" | 10'-3" |
7x1/4 | 13.067 | 45.733 | 39.2 | 7'-7" | 7'-7" | 7'-9" | 10'-9" | 7'-6" | 7'-9" | 9'-6" |
7x3/8 | 19.600 | 68.600 | 58.2 | 8'-8" | 8'-8" | 8'-10" | 12'-4" | 8'-7" | 8'-11" | 10'-11" |
7x1/2 | 26.133 | 91.467 | 77.3 | 9'-6" | 9'-7" | 9'-9" | 13'-7" | 9'-5" | 9'-9" | 12'-0" |
38 Space (2-3/8") Load Table
Bearing Bar Size (inches) | Section Modulus Per Foot of Width | Moment of Inertia Per Foot of Width | Approx. Weight psf | Maximum Safe Span | ||||||
H-25 Load | H-20 Load | H-15 Load | Auto Traffic | 5 Ton Forklift | 3 Ton Forklift | 1 Ton Forklift | ||||
1x1/4 | 0.211 | 0.105 | 5.4 | 0'-8" | 0'-8" | 0'-7" | 0'-9" | 0'-6" | 0'-5" | 0'-5" |
1x5/16 | 0.263 | 0.132 | 6.5 | 0'-10" | 0'-9" | 0'-8" | 0'-10" | 0'-6" | 0'-5" | 0'-6" |
1x3/8 | 0.316 | 0.158 | 7.6 | 0'-10" | 0'-10" | 0'-8" | 0'-11" | 0'-7" | 0'-6" | 0'-7" |
1-1/4x1/4 | 0.329 | 0.206 | 6.5 | 0'-11" | 0'-10" | 0'-9" | 1'-0" | 0'-8" | 0'-6" | 0'-7" |
1-1/4x5/16 | 0.411 | 0.257 | 7.8 | 1'-0" | 0'-11" | 0'-10" | 1'-2" | 0'-8" | 0'-7" | 0'-9" |
1-1/4x3/8 | 0.493 | 0.308 | 9.2 | 1'-1" | 1'-0" | 0'-11" | 1'-4" | 0'-9" | 0'-7" | 0'-10" |
1-1/2x1/4 | 0.474 | 0.355 | 7.6 | 1'-1" | 1'-0" | 0'-10" | 1'-3" | 0'-9" | 0'-7" | 0'-10" |
1-1/2x5/16 | 0.592 | 0.444 | 9.2 | 1'-3" | 1'-1" | 1'-0" | 1'-6" | 0'-10" | 0'-8" | 1'-0" |
1-1/2x3/8 | 0.711 | 0.533 | 10.8 | 1'-4" | 1'-3" | 1'-1" | 1'-9" | 0'-11" | 0'-9" | 1'-2" |
1-3/4x1/4 | 0.645 | 0.564 | 8.6 | 1'-4" | 1'-2" | 1'-0" | 1'-7" | 0'-10" | 0'-9" | 1'-0" |
1-3/4x5/16 | 0.806 | 0.705 | 10.5 | 1'-5" | 1'-3" | 1'-2" | 1'-11" | 0'-11" | 0'-10" | 1'-3" |
1-3/4x3/8 | 0.967 | 0.846 | 12.4 | 1'-7" | 1'-5" | 1'-3" | 2'-3" | 1'-1" | 1'-0" | 1'-6" |
2x1/4 | 0.842 | 0.842 | 9.7 | 1'-5" | 1'-4" | 1'-2" | 2'-0" | 1'-0" | 0'-11" | 1'-4" |
2x5/16 | 1.053 | 1.053 | 11.9 | 1'-8" | 1'-6" | 1'-4" | 2'-5" | 1'-1" | 1'-0" | 1'-7" |
2x3/8 | 1.263 | 1.263 | 14.0 | 1'-9" | 1'-8" | 1'-6" | 2'-10" | 1'-3" | 1'-2" | 1'-11" |
2-1/4x1/4 | 1.066 | 1.199 | 10.8 | 1'-8" | 1'-6" | 1'-4" | 2'-5" | 1'-1" | 1'-1" | 1'-8" |
2-1/4x5/16 | 1.332 | 1.499 | 13.2 | 1'-10" | 1'-8" | 1'-6" | 3'-0" | 1'-3" | 1'-3" | 2'-0" |
2-1/4x3/8 | 1.599 | 1.799 | 15.6 | 2'-0" | 1'-10" | 1'-8" | 3'-6" | 1'-5" | 1'-5" | 2'-5" |
2-1/2x1/4 | 1.316 | 1.645 | 11.9 | 1'-10" | 1'-8" | 1'-6" | 2'-11" | 1'-3" | 1'-3" | 2'-0" |
2-1/2x5/16 | 1.645 | 2.056 | 14.5 | 2'-1" | 1'-11" | 1'-9" | 3'-7" | 1'-6" | 1'-6" | 2'-6" |
2-1/2x3/8 | 1.974 | 2.467 | 17.2 | 2'-3" | 2'-1" | 2'-0" | 4'-2" | 1'-8" | 1'-9" | 2'-11" |
3x1/4 | 1.895 | 2.842 | 14.0 | 2'-2" | 2'-1" | 1'-11" | 4'-1" | 1'-8" | 1'-8" | 2'-10" |
3x5/16 | 2.368 | 3.553 | 17.2 | 2'-6" | 2'-4" | 2'-3" | 4'-9" | 1'-11" | 2'-0" | 3'-6" |
3x3/8 | 2.842 | 4.263 | 20.4 | 2'-10" | 2'-8" | 2'-7" | 5'-0" | 2'-3" | 2'-5" | 4'-2" |
3-1/2x1/4 | 2.579 | 4.513 | 16.2 | 2'-8" | 2'-6" | 2'-5" | 5'-1" | 2'-1" | 2'-2" | 3'-9" |
3-1/2x5/16 | 3.224 | 5.641 | 19.9 | 3'-1" | 2'-11" | 2'-10" | 5'-6" | 2'-6" | 2'-8" | 4'-8" |
3-1/2x3/8 | 3.868 | 6.770 | 23.7 | 3'-6" | 3'-4" | 3'-4" | 5'-10" | 2'-11" | 3'-2" | 5'-3" |
4x1/4 | 3.368 | 6.737 | 18.3 | 3'-2" | 3'-0" | 2'-11" | 5'-10" | 2'-7" | 2'-9" | 4'-11" |
4x5/16 | 4.211 | 8.421 | 22.6 | 3'-8" | 3'-7" | 3'-7" | 6'-3" | 3'-2" | 3'-5" | 5'-7" |
4x3/8 | 5.053 | 10.105 | 26.9 | 4'-3" | 4'-2" | 4'-2" | 6'-8" | 3'-8" | 4'-0" | 6'-0" |
4-1/2x1/4 | 4.263 | 9.592 | 20.4 | 3'-9" | 3'-7" | 3'-7" | 6'-7" | 3'-2" | 3'-5" | 5'-10" |
4-1/2x5/16 | 5.329 | 11.990 | 25.3 | 4'-5" | 4'-4" | 4'-4" | 7'-1" | 3'-11" | 4'-3" | 6'-4" |
4-1/2x3/8 | 6.395 | 14.388 | 30.1 | 5'-1" | 5'-0" | 5'-1" | 7'-6" | 4'-7" | 5'-0" | 6'-9" |
5x1/4 | 5.263 | 13.158 | 22.6 | 4'-4" | 4'-3" | 4'-3" | 7'-4" | 3'-10" | 4'-2" | 6'-6" |
5x3/8 | 7.895 | 19.737 | 33.3 | 5'-10" | 5'-10" | 5'-11" | 8'-4" | 5'-6" | 6'-0" | 7'-6" |
5x1/2 | 10.526 | 26.316 | 44.1 | 6'-5" | 6'-5" | 6'-6" | 9'-2" | 6'-4" | 6'-8" | 8'-3" |
6x1/4 | 7.579 | 22.737 | 26.9 | 5'-10" | 5'-10" | 5'-11" | 8'-9" | 5'-4" | 5'-11" | 7'-10" |
6x3/8 | 11.368 | 34.105 | 39.8 | 6'-11" | 7'-0" | 7'-1" | 10'-0" | 6'-11" | 7'-3" | 9'-0" |
6x1/2 | 15.158 | 45.474 | 52.7 | 7'-8" | 7'-8" | 7'-10" | 11'-1" | 7'-7" | 8'-0" | 9'-11" |
7x1/4 | 10.316 | 36.105 | 31.2 | 7'-1" | 7'-2" | 7'-3" | 10'-3" | 7'-1" | 7'-5" | 9'-2" |
7x3/8 | 15.474 | 54.158 | 46.2 | 8'-1" | 8'-2" | 8'-4" | 11'-8" | 8'-1" | 8'-5" | 10'-6" |
7x1/2 | 20.632 | 72.211 | 61.2 | 8'-11" | 9'-0" | 9'-2" | 12'-11" | 8'-11" | 9'-4" | 11'-6" |
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