I 15-60-ADA – I Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

1 1/2" Thick | 60% 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

0.003

0.003

0.006

0.013

0.026

10046

2.80

18

0.002

0.003

0.005

0.007

0.008

0.017

0.034

0.068

6697

3.60

24

0.003

0.007

0.010

0.014

0.017

0.035

0.069

0.139

5023

4.15

30

0.006

0.013

0.019

0.025

0.032

0.063

0.126

0.253

4018

4.45

36

0.011

0.021

0.032

0.042

0.053

0.106

0.212

0.424

3349

4.58

42

0.017

0.033

0.050

0.067

0.083

0.166

0.333

2870

4.64

48

0.025

0.049

0.074

0.099

0.124

0.247

0.494

2511

4.66

54

0.035

0.070

0.105

0.140

0.174

0.349

2232

4.70

60

0.048

0.095

0.143

0.191

0.238

0.477

2009

4.72

66

0.063

0.126

0.190

0.253

0.316

1826

4.74

72

0.082

0.163

0.245

0.327

0.408

1674

4.76

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

0.002

0.002

0.004

0.008

0.016

12858

2.80

18

0.002

0.003

0.005

0.006

0.008

0.016

0.032

0.063

5715

3.60

24

0.004

0.009

0.013

0.017

0.022

0.043

0.087

0.173

3215

4.15

30

0.010

0.020

0.030

0.040

0.049

0.099

0.198

0.395

2057

4.45

36

0.020

0.040

0.060

0.080

0.099

0.199

0.398

1429

4.58

42

0.036

0.073

0.109

0.146

0.182

0.364

1050

4.64

48

0.062

0.124

0.185

0.247

0.309

804

4.66

54

0.098

0.196

0.294

0.393

0.491

635

4.7

60

0.149

0.298

0.447

514

4.72

66

0.217

0.434

425

4.74

72

0.306

0.612

357

4.76

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 4.07 in2 I = 0.90 in4 S = 1.20 in3

15

1.5″

0.78″

3.74

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.