I 10-50-ADA – I Bearing Bar PROGrate Pultruded GratingWheelchair Accessible

1" Thick | 50% 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

0.003

0.004

0.006

0.007

0.014

0.028

0.056

7495

1.29

18

0.003

0.007

0.010

0.014

0.017

0.035

0.069

0.139

4997

1.75

24

0.007

0.015

0.022

0.030

0.037

0.074

0.148

0.295

3748

1.95

30

0.014

0.028

0.042

0.055

0.069

0.139

0.277

2998

2.03

36

0.024

0.048

0.071

0.095

0.119

0.238

0.476

2498

2.04

42

0.037

0.075

0.112

0.150

0.187

0.375

2141

2.06

48

0.056

0.111

0.167

0.223

0.278

1874

2.07

54

0.079

0.158

0.237

0.315

0.394

1666

2.08

60

0.108

0.215

0.323

0.431

0.538

1499

2.09

66

0.143

0.285

0.428

0.570

1363

2.10

72

0.184

0.369

0.553

1250

2.11

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

0.002

0.003

0.003

0.004

0.009

0.017

0.035

9594

1.29

18

0.003

0.007

0.010

0.013

0.016

0.033

0.065

0.130

4264

1.75

24

0.009

0.018

0.028

0.037

0.046

0.092

0.185

0.369

2398

1.95

30

0.022

0.043

0.065

0.087

0.108

0.216

0.433

1535

2.03

36

0.045

0.089

0.134

0.179

0.223

0.447

1066

2.04

42

0.082

0.164

0.246

0.328

0.410

783

2.06

48

0.139

0.278

0.417

600

2.07

54

0.222

0.444

0.665

474

2.08

60

0.336

0.673

383

2.09

66

0.490

317

2.1

72

0.691

267

2.11

Properties Per Foot of Width

# of Bars

Load Bar Depth

Bar Centers

Weight/sq ft

A = 3.67 in2 I = 0.40 in4 S = 0.80 in3

19

1″

0.63″

3.50

 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.