Heavy Duty Pultruded Grating – HD 25-40 – HD Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

2 1/2" 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

<0.001

<0.001

<0.001

<0.001

0.001

0.002

0.004

0.008

68225

8.68

18

<0.001

<0.001

0.001

0.002

0.002

0.004

0.008

0.016

45483

15.20

24

<0.001

0.001

0.002

0.003

0.003

0.007

0.014

0.027

34113

21.00

30

0.001

0.002

0.003

0.004

0.005

0.010

0.021

0.042

27292

26.80

36

0.002

0.003

0.005

0.006

0.008

0.015

0.030

0.060

22742

32.20

42

0.002

0.004

0.006

0.009

0.011

0.021

0.043

0.086

19493

35.90

48

0.003

0.006

0.009

0.012

0.015

0.030

0.060

0.120

17056

38.40

54

0.004

0.008

0.012

0.016

0.020

0.041

0.081

0.162

15161

40.50

60

0.005

0.011

0.016

0.022

0.027

0.055

0.109

0.218

13645

41.20

66

0.007

0.014

0.021

0.029

0.036

0.071

0.143

0.286

12405

41.90

72

0.009

0.018

0.027

0.037

0.046

0.091

0.183

0.365

11371

42.60

78

0.012

0.023

0.035

0.046

0.058

0.115

0.231

0.461

10496

42.85

84

0.014

0.029

0.043

0.058

0.072

0.144

0.288

0.576

9746

42.90

90

0.018

0.035

0.053

0.071

0.088

0.177

0.353

9097

42.98

96

0.021

0.043

0.064

0.086

0.107

0.214

0.428

8528

43.10

102

0.026

0.051

0.077

0.102

0.128

0.256

0.512

8026

43.20

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

<0.001

<0.001

<0.001

<0.001

0.001

0.003

0.005

34933

8.56

18

<0.001

<0.001

0.001

0.001

0.002

0.004

0.007

0.015

23288

15.20

24

<0.001

0.002

0.003

0.003

0.004

0.009

0.017

0.034

17466

21.00

30

0.002

0.003

0.005

0.007

0.008

0.016

0.033

0.066

13973

26.80

36

0.003

0.006

0.008

0.011

0.014

0.028

0.057

0.113

9704

32.20

42

0.005

0.009

0.014

0.019

0.024

0.047

0.094

0.188

7129

35.90

48

0.008

0.015

0.023

0.030

0.038

0.075

0.150

0.300

5458

38.40

54

0.011

0.023

0.034

0.046

0.057

0.114

0.228

0.456

4313

40.50

60

0.017

0.034

0.051

0.068

0.085

0.171

0.341

0.683

3493

41.20

66

0.025

0.049

0.074

0.098

0.123

0.246

0.491

2887

41.90

72

0.034

0.068

0.103

0.137

0.171

0.342

0.684

2426

42.60

78

0.047

0.094

0.141

0.187

0.234

0.469

2067

42.85

84

0.063

0.126

0.189

0.252

0.315

0.630

1782

42.90

90

0.083

0.166

0.248

0.331

0.414

1553

42.98

96

0.107

0.214

0.321

0.428

0.535

1365

43.10

102

0.136

0.272

0.408

0.544

0.680

1209

43.20

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 18.00 in2 I = 9.38 in4 S = 7.50 in3

12

2.5″

1″

14.48

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.