We believe that we can achieve our goal of enhancing competitiveness and provide customers with better Steel Grating For Platform And Walkway, Press Locked Steel Grating, Stainless Steel Bar Grating with our strength in science and technology. We have reached the leading level in the industry in terms of market share, brand awareness, process technology level, quality status and other indicators. We are sure our successful experience in tool production will win customer's trust, Wish to co-operate and co-create a better future with you! The improvement of enterprise cohesion needs to attract talents through the appropriate incentive mechanism, which is the key problem to be solved.
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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