Heavy Duty Pultruded Grating – HD 10-60 – HD Bearing Bar PROGrate Pultruded Grating

1" Thick | 60% Open
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NOTE: These products are only available by special order. Minimum orders, extended lead times and special-order pricing will apply.

Span (inches)

CONCENTRATED LOAD in lb/ft of width

Max
Load (lb/ft)

Apparent
EI x 106
(lb-in2)

50

100

150

200

250

500

1000

2000

12

0.003

0.005

0.008

0.010

0.013

0.025

0.050

0.100

7548

0.72

18

0.004

0.009

0.013

0.017

0.021

0.043

0.086

0.171

5032

1.42

24

0.008

0.016

0.024

0.032

0.040

0.079

0.158

0.316

3774

1.82

30

0.014

0.028

0.043

0.057

0.071

0.142

0.284

0.568

3019

1.98

36

0.023

0.046

0.069

0.093

0.116

0.231

0.463

2516

2.10

42

0.036

0.072

0.108

0.144

0.180

0.361

2156

2.14

48

0.053

0.107

0.160

0.213

0.267

0.533

1887

2.16

54

0.075

0.150

0.225

0.300

0.374

1677

2.19

60

0.102

0.205

0.307

0.409

0.511

1510

2.20

Span (inches)

UNIFORM LOAD in lb/ft2

Max
Load (lb/ft2)

Apparent
EI x 106
(lb-in2)

50

100

150

200

250

500

1000

2000

12

0.002

0.003

0.005

0.006

0.008

0.016

0.031

0.062

6037

0.72

18

0.004

0.008

0.012

0.016

0.020

0.040

0.080

0.160

4025

1.42

24

0.010

0.020

0.030

0.040

0.049

0.099

0.198

0.396

3018

1.82

30

0.022

0.044

0.067

0.089

0.111

0.222

0.444

2415

1.98

36

0.043

0.087

0.130

0.174

0.217

0.434

1677

2.10

42

0.079

0.158

0.237

0.316

0.394

1232

2.14

48

0.133

0.267

0.400

0.533

0.667

943

2.16

54

0.211

0.421

0.632

745

2.19

60

0.320

0.639

604

2.20

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 4.80 in2 I = 0.40 in4 S = 0.80 in3

8

1″

1.5″

4.05

1. Tables were developed in accordance with the test method developed by the Fiberglass Grating Manufacturers Council (FGMC) of the American Composites Manufacturers Association (ACMA) for the Fiberglass Grating Standard.
2. The designer should not exceed MAXIMUM RECOMMENDED load at any time. ULTIMATE CAPACITY represents MAX LOAD observed at initial fracture.
3. Walking loads for maintenance traffic are typically a live load of 50 PSF. Deflections for worker comfort are typically limited to 0.375″ (3⁄8″) or SPAN divided by 120 under full live load. For a firmer feel under full live load or a line load 250 lb/ft of width, limit deflections to 0.25″ (1/4″) or SPAN divided by 200.
4. The loads represented are for STATIC LOAD CONDITIONS at ambient temperature. Deflections for impact loads or dynamic loads will MULTIPLY the deflections shown by 2. Long term loads will result in added deflection due to creep in the material and will require higher factors of safety to ensure acceptable performance.
5. Deflections are limited to 0.5″ (1/2″) as recommended by the Fiberglass Grating Manufacturers Council of the American Composites Manufacturers Association.