Phenolic Grating – I 15-60 PH – I Bearing Bar PROGrate Pultruded Grating

1 1/2" Thick | 60% Open | USCG Approval #164.040/13/0
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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

0.002

0.003

0.004

0.005

0.010

0.020

0.040

6222

1.8

18

0.002

0.005

0.007

0.009

0.012

0.023

0.047

0.093

4148

2.6

24

0.005

0.009

0.014

0.018

0.023

0.045

0.090

0.180

3111

3.2

30

0.008

0.015

0.023

0.031

0.038

0.077

0.154

0.307

2489

3.66

36

0.012

0.024

0.036

0.048

0.060

0.121

0.242

0.484

2074

4.02

42

0.018

0.036

0.054

0.072

0.090

0.180

0.361

1778

4.28

44

0.020

0.040

0.060

0.080

0.099

0.199

0.398

1697

4.46

48

0.026

0.051

0.077

0.102

0.128

0.256

0.512

1556

4.5

54

0.036

0.073

0.109

0.145

0.181

0.363

1383

4.52

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

0.002

0.002

0.003

0.006

0.012

0.025

15555

1.8

18

0.003

0.004

0.007

0.009

0.011

0.022

0.044

0.088

6057

2.6

24

0.006

0.011

0.017

0.022

0.028

0.056

0.112

0.225

3182

3.2

30

0.012

0.024

0.036

0.048

0.060

0.120

0.240

0.480

1992

3.66

36

0.023

0.045

0.068

0.091

0.113

0.227

0.453

1393

4.02

42

0.039

0.079

0.118

0.158

0.197

0.394

1014

4.28

44

0.046

0.091

0.137

0.182

0.228

0.456

927

4.46

48

0.064

0.128

0.192

0.256

0.320

0.640

778

4.5

54

0.102

0.204

0.306

0.408

0.510

615

4.52

Properties Per Foot of Width

# of Bars

Load Bar Width

Bar Centers

Weight/sq ft

A = 3.11 in2 I = 0.88 in4 S = 1.17 in3

8

0.6″

1.5″

3.06

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 too 0.5″ (1/2″) as recommended by the Fiberglass Grating Manufacturers Council of the American Composites Manufacturers Association.