I 15-40-ADA – I Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

1 1/2" Thick | 40% Open | ADA Compliant
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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

0.002

0.002

0.003

0.005

0.011

0.021

15057

3.40

18

0.001

0.002

0.003

0.004

0.006

0.011

0.022

0.045

10038

5.42

24

0.002

0.005

0.007

0.009

0.012

0.023

0.047

0.094

7528

6.16

30

0.004

0.008

0.013

0.017

0.021

0.042

0.085

0.170

6023

6.63

36

0.007

0.014

0.022

0.029

0.036

0.072

0.143

0.287

5019

6.78

42

0.011

0.022

0.034

0.045

0.056

0.112

0.224

0.447

4302

6.90

48

0.016

0.033

0.049

0.065

0.082

0.163

0.327

3764

7.05

54

0.023

0.046

0.069

0.092

0.115

0.229

0.459

3346

7.15

60

0.031

0.063

0.094

0.125

0.157

0.313

3011

7.18

66

0.042

0.083

0.125

0.166

0.208

0.416

2738

7.20

72

0.054

0.108

0.162

0.215

0.269

0.539

2509

7.22

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

0.000

0.001

0.001

0.001

0.002

0.003

0.007

0.013

19273

3.40

18

0.001

0.002

0.003

0.004

0.005

0.011

0.021

0.042

8566

5.42

24

0.003

0.006

0.009

0.012

0.015

0.029

0.058

0.117

4818

6.16

30

0.007

0.013

0.020

0.027

0.033

0.066

0.133

0.265

3084

6.63

36

0.013

0.027

0.040

0.054

0.067

0.134

0.269

2141

6.78

42

0.024

0.049

0.073

0.098

0.122

0.245

1573

6.9

48

0.041

0.082

0.123

0.163

0.204

1205

7.05

54

0.065

0.129

0.194

0.258

0.323

952

7.15

60

0.098

0.196

0.294

0.392

0.490

771

7.18

66

0.143

0.286

0.429

637

7.2

72

0.202

0.404

535

7.22

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 6.24 in2 I = 1.38 in4 S = 1.84 in3

23

1.5″

0.52″

5.32

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.