Heavy Duty Pultruded Grating – HD 10-40 – HD Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

1" Thick | 40% 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

0.002

0.003

0.005

0.007

0.008

0.017

0.034

0.068

11275

1.06

18

0.003

0.007

0.010

0.013

0.016

0.033

0.065

0.130

7517

1.87

24

0.006

0.012

0.018

0.024

0.030

0.059

0.118

0.236

5637

2.44

30

0.010

0.020

0.030

0.040

0.050

0.101

0.201

0.403

4510

2.79

36

0.016

0.033

0.049

0.065

0.081

0.163

0.326

0.652

3758

2.98

42

0.025

0.050

0.075

0.100

0.125

0.249

0.498

3221

3.10

48

0.037

0.073

0.110

0.146

0.183

0.366

2819

3.15

54

0.052

0.103

0.155

0.206

0.258

0.516

2506

3.18

60

0.070

0.141

0.211

0.281

0.352

2255

3.20

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

0.001

0.002

0.003

0.004

0.005

0.011

0.021

0.042

9020

1.06

18

0.003

0.006

0.009

0.012

0.015

0.030

0.061

0.122

6013

1.87

24

0.007

0.015

0.022

0.030

0.037

0.074

0.148

0.295

4510

2.44

30

0.016

0.031

0.047

0.063

0.079

0.157

0.315

0.629

3608

2.79

36

0.031

0.061

0.092

0.122

0.153

0.306

0.611

2506

2.98

42

0.054

0.109

0.163

0.218

0.272

0.545

1841

3.10

48

0.091

0.183

0.274

0.366

0.457

1409

3.15

54

0.145

0.290

0.435

0.580

1114

3.18

60

0.220

0.439

0.659

902

3.20

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 7.20 in2 I = 0.60 in4 S = 1.20 in3

12

1″

1″

5.84

 

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.