I 10-40-ADA – I Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

1" 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

0.002

0.003

0.004

0.005

0.009

0.018

0.036

9005

1.99

18

0.003

0.006

0.009

0.011

0.014

0.029

0.057

0.115

6003

2.12

24

0.006

0.013

0.019

0.026

0.032

0.064

0.129

0.257

4503

2.24

30

0.012

0.024

0.036

0.048

0.060

0.120

0.239

0.479

3602

2.35

36

0.020

0.040

0.060

0.080

0.100

0.201

0.402

3002

2.42

42

0.032

0.063

0.095

0.126

0.158

0.315

2573

2.45

48

0.047

0.093

0.140

0.187

0.233

0.466

2251

2.47

54

0.066

0.132

0.198

0.265

0.331

0.661

2001

2.48

60

0.090

0.181

0.271

0.361

0.452

1800

2.49

66

0.120

0.240

0.359

0.479

0.599

1637

2.50

72

0.155

0.310

0.465

0.620

1500

2.51

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

0.011

0.023

11526

1.99

18

0.003

0.005

0.008

0.011

0.013

0.027

0.054

0.107

5123

2.12

24

0.008

0.016

0.024

0.032

0.040

0.080

0.161

0.321

2882

2.24

30

0.019

0.037

0.056

0.075

0.094

0.187

0.374

1844

2.35

36

0.038

0.075

0.113

0.151

0.188

0.377

1281

2.42

42

0.069

0.138

0.207

0.276

0.345

941

2.45

48

0.117

0.233

0.350

0.466

720

2.47

54

0.186

0.372

0.558

569

2.48

60

0.282

0.565

461

2.49

66

0.412

381

2.5

72

0.581

320

2.51

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 4.44 in2 I = 0.49 in4 S = 0.98 in3

23

1″

.52″

4.08

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.