VGBA Certified – I 10-40 – I 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

0.001

0.002

0.003

0.004

0.005

0.011

0.021

0.042

8028

1.80

18

0.003

0.006

0.009

0.012

0.015

0.030

0.060

0.119

5352

2.10

24

0.006

0.013

0.019

0.025

0.032

0.063

0.126

0.253

4014

2.28

30

0.012

0.024

0.036

0.047

0.059

0.119

0.237

0.475

3211

2.37

36

0.020

0.040

0.060

0.080

0.100

0.201

0.402

2676

2.42

42

0.032

0.063

0.095

0.127

0.158

0.316

0.633

2294

2.44

48

0.047

0.094

0.141

0.188

0.235

0.470

2007

2.45

54

0.067

0.134

0.200

0.267

0.334

0.668

1784

2.46

60

0.091

0.182

0.273

0.364

0.455

1606

2.47

66

0.121

0.242

0.362

0.483

0.604

1460

2.48

72

0.156

0.312

0.468

0.625

1338

2.49

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

17605

1.80

18

0.003

0.005

0.008

0.011

0.014

0.027

0.054

0.108

7969

2.10

24

0.008

0.016

0.024

0.032

0.039

0.079

0.158

0.316

3961

2.28

30

0.019

0.037

0.056

0.074

0.093

0.185

0.371

2574

2.37

36

0.038

0.075

0.113

0.151

0.188

0.377

1791

2.42

42

0.069

0.138

0.208

0.277

0.346

0.692

1314

2.44

48

0.118

0.235

0.353

0.470

0.588

1004

2.45

54

0.188

0.376

0.564

792

2.46

60

0.285

0.569

713

2.47

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 3.66 in2 I = 0.46 in4 S = 0.93 in3

12

1″

1″

3.47

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.