PROGrate® Heavy Duty Pultruded Grating

Bedford’s PROGrate Heavy Duty Pultruded (HDP) grating is engineered to carry higher loads than traditional grating. It also delivers the same high-strength, corrosion-resistant performance as our PROGrate pultruded grating products. PROGrate HDP grating is available by special order in 1″, 1 1/2″, 2″ and 2 1/2″ thicknesses and gray IFR and VFR resin systems. Made-to-order panels are available up to 5′ wide by 20′ long.

NOTE: These products are only available by special order. Minimum orders, extended lead times and special-order pricing will apply.
Available Colors:  
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Available Resin Systems

PROGrate HDP grating is available in two resin systems, each providing different levels of corrosion protection. Both resin systems meet Class 1 Flame Spread Rating per ASTM E-84 test standards.

IFR: A premium-grade isophthalic polyester resin system that provides excellent corrosion protection.

VFR: A vinylester resin system that provides the highest level of corrosion protection.

Applications

  • Flooring, platforms and ramps
  • Storage areas
  • Assembly lines
  • Long-span walkways
  • Trench covers with vehicular traffic

Features

  • High strength
  • Corrosion resistant
  • Low conductivity
  • Fire retardant
  • Low maintenance

Allowable Spans for Vehicular Loads

Allowable Spans for
Vehicular Loads

Wheel Load (lb)

(½ Axle Load + 30% impact)

Load
Distribution

Allowable Span in Inches

Parallel to Axle (in)

HDP 15-40

HDP 15-50

HDP 15-60

HDP 20-40

HDP 20-50

HDP 20-60

HDP 25-40

HDP 25-50

HDP 25-60

AASHTO Standard Truck4
32,000 lb Axle Load – Dual Wheels
(*formerly AASHTO H-20)

20,800

20

17

14

12

23

22

20

29

27

26

Automobile Traffic
5,000 lb Vehicle – 1,500 lb Load
55% Drive Axle Load

2,220

8

28

27

26

37

36

35

47

45

43

5 Ton Capacity Forklift
14,400 lb Vehicle – 24,400 lb Total Load
85% Drive Axle Load

13,480

11

15

14

12

22

22

20

28

27

25

3 Ton Capacity Forklift
9,800 lb Vehicle – 15,800 lb Total Load
85% Drive Axle Load

8,730

7

16

14

12

23

22

21

28

27

26

1 Ton Capacity Forklift
4,200 lb Vehicle – 6,200 lb Total Load
85% Drive Axle Load

3,425

4

20

20

19

27

27

25

34

34

32

 

NOTES: Allowable Spans for Vehicular Loads

1. Load is carried by the grating load bars immediately under wheel plus two additional load bars.

2. Allowable span is based on allowable bending stress and 0.25″ deflection; other criteria may be required by certain construction codes. Check code requirements to determine design criteria.

3. Allowable span is strongly dependent on wheel width and vehicle load capacity. If your application varies from the values shown on this table, contact Bedford for assistance.

4. Load based on AASHTO LRFD bridge design Specification, 2 Ed. This does not imply that the allowable span meets the deflection requirements of this specification.

Your Full-Service Partner

Your Full-Service Partner

Count on Bedford for everything from skilled design and engineering services to pre-assembly and timely delivery. Bedford has a state-of-the-art fabrication facility with CNC machines for faster processing. Kitted shipments are also available to save installation time on site.

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Chemical Resistance Guide

Chemical Resistance Guide

Get detailed tables on chemical compatibility based on resin manufacturers’ data, including maximum allowable concentrations and temperatures.

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