

	Features Design Data Loads / Deflections


	Ship Stores Systems

Marine Gratings


		Features
	Standard Widths of 4", 6" and 9" Standard Lengths up to 30' - can be cut to your requirements Standard Depths of 1", 1¼", 1½" and 1¾" Available in three fastening methods - Welded, Interlocking and "J" Bolts Decks are available unpunched for a solid surface, or punched with upset round, square or rectangular holes Supplied with I-Beam supports for superior strength Exceeds United States Government specification MIL-G-18015 Type Z
	TOP

Design Data

Model
Number

Depth
(in)

Wgt
(per ft)

S

I

MG-100

1.00

3.1

0.4121

0.2320

MG-125

1.25

3.6

0.7213

0.4659

MG-150

1.50

4.3

1.0513

0.8159

MG-175

1.75

4.6

1.4540

1.3015

S = Section Modulus (in³)
Fiber Stress 10,000 psi

I = Moment of Inertia (in⁴/ft·lb)
Modulus of Elasticity 10,000,000 psi

TOP

Rectangular Punched Grating

Round Punched Grating

Square Punched Grating

Safe Loads (lbs) and Deflections (in)

Lengths

24"

30"

36"

42"

48"

54"

60"

66"

72"

78"

84"

90"

96"

MG-100 (1" Deep Grating)

U

687

440

305

224

171

136

110

91

76

65

56

49

43

D

.103

.162

.232

.316

.412

.525

.647

.783

.928

1.09

1.27

1.46

1.66

C

687

550

457

392

342

306

275

250

228

211

196

184

172

D

.083

.130

.186

.253

.330

.420

.517

.626

.743

.87

1.02

1.17

1.33

MG-125 (1¼" Deep Grating)

U

1202

769

534

392

301

237

192

159

133

114

98

85

75

D

.090

.141

.203

.276

.362

.455

.562

.682

.808

.954

1.10

1.26

1.44

C

1202

960

800

685

602

533

480

437

399

370

343

319

300

D

.072

.113

.162

.221

.290

.364

.450

.545

.646

.763

.880

1.01

1.15

MG-150 (1½" Deep Grating)

U

1750

1120

778

572

438

346

280

232

194

166

143

124

109

D

.075

.117

.169

.230

.300

.380

.459

.570

.673

.793

.920

1.05

1.20

C

1750

1400

1165

1000

876

779

700

638

582

539

501

465

436

D

.060

.094

.135

.184

.240

.304

.376

.456

.538

.634

.736

.840

.960

MG-175 (1¾" Deep Grating)

U

2420

1550

1075

790

605

478

387

320

269

229

197

172

151

D

.065

.102

.146

.199

.260

.330

.406

.492

.585

.687

.795

.913

1.04

C

2420

1940

1610

1380

1210

1073

967

880

807

744

689

645

604

D

.052

.082

.117

.159

.208

.264

.325

.394

.468

.550

.635

.730

.832

U = Uniform Load (lb/ft²)	D = Deflection (in)	C = Concentrated Load (lb applied to load center)
Combinations in Red backgrounds create more deflection than recommended for pedestrian comfort

TOP

Copyright © 2001 Rampmaster, Incorporated
Site Administrator: rampy@rampsonline.com
Privacy Policy & Other Legal Stuff