TITLE 77: PUBLIC HEALTH
CHAPTER I: DEPARTMENT OF PUBLIC HEALTH
SUBCHAPTER q: MOBILE HOMES
PART 870 MANUFACTURED HOME INSTALLATION CODE
SECTION 870.TABLE B FOOTING AREAS REQUIRED FOR SOIL'S LOAD-BEARING CAPACITY - DESIGN ROOF LOAD 20 POUNDS PER SQUARE FOOT



Section 870.TABLE B   Footing Areas Required for Soil's Load-Bearing Capacity − Design Roof Load 20 Pounds Per Square Foot

 

Section Width (feet)

12

14

16

12

14

16

12

14

16

Support Spacing (feet)

6

6

6

8

8

8

10

10

10

Support Loading (pounds per pier)

3200

3700

4250

4250

4950

5650

5300

6150

7050

Soil's Load- Bearing Capacity (lbs/ft2)

Footing Area (square inches)

1000

461

533

612

612

713

814

763

886

1015

1500

307

355

408

408

475

542

509

590

677

2000

230

266

306

306

356

407

382

443

508

3000

154

178

204

204

238

271

254

295

338

4000

144

144

153

153

178

203

191

221

254