Ill. Admin. Code tit. 77, pt. 870, tbl. E

Current through Register Vol. 48, No. 49, December 6, 2024

Table E - Pier Load and Minimum Pier Capacity for 12 Foot Wide Section (Pounds)

Roof Live Load (psf)	Mating/Perimeter Wall Opening (feet)
	5	10	15	20	25	30	35
20	900	1800	2600	3500	4400	5300	6100
30	1200	2300	3500	4700	5800	7000	8200
40	1500	2900	4400	5800	7300	8800*	10200*
Soil's Load- Bearing Capacity (psf)	Footing Area (square inches)
1000	20	144	259	374	504	634	763	878
	30	173	331	504	677	835	1008	1181
	40	216	417	634	835	1051	1267	1469
1500	20	144	173	250	336	422	509	586
	30	144	221	336	451	557	672	787
	40	144	278	422	557	701	845	979
2000	20	144	144	187	252	317	382	439
	30	144	166	252	338	418	504	590
	40	144	209	317	418	526	634	734
3000	20	144	144	144	168	211	254	293
	30	144	144	168	226	278	336	394
	40	144	144	211	278	350	422	490
4000	20	144	144	144	144	191	191	220
	30	144	144	144	169	209	252	295
	40	144	144	158	209	263	317	367

* Individual supports shall NOT support loads greater than 8000 pounds for a single stack of 8"x8"x16" stack of blocks, 14000 pounds for a double stack.