Illinois Administrative Code
Title 77 - PUBLIC HEALTH
Part 870 - MANUFACTURED HOME INSTALLATION CODE
Table B - Footing Areas Required for Soil's Load-Bearing Capacity - Design Roof Load 20 Pounds Per Square Foot
Universal Citation: 77 IL Admin Code ยง B
Current through Register Vol. 48, No. 12, March 22, 2024
|
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 |
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