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

Current through Register Vol. 49, No. 2, January 10, 2025

Table F - Pier Load and Minimum Pier Capacity for 14 Foot Wide Section (Pounds)

Roof Live Load (psf)	Mating/Perimeter Wall Opening (feet)
	5	10	15	20	25	30	35
20	1000	2000	3000	4100	5100	6100	7100
30	1400	2700	4100	5400	6800	8100*	9500*
40	1700	3400	5100	6800	8400*	10100*	11800*
Soil's Load- Bearing Capacity (psf)	Footing Area (square inches)
1000	20	144	288	432	590	734	878	1022
	30	202	389	590	778	979	1166	1368
	40	245	490	734	979	1210	1454	1699
1500	20	144	192	288	394	490	586	682
	30	144	259	394	518	653	778	912
	40	163	326	490	653	806	970	1133
2000	20	144	144	216	295	367	439	511
	30	144	194	295	389	490	583	684
	40	144	245	367	490	605	727	850
3000	20	144	144	144	197	245	293	341
	30	144	144	197	260	326	389	456
	40	144	163	245	326	403	485	566
4000	20	144	144	144	148	184	220	256
	30	144	144	148	194	245	292	342
	40	144	144	184	245	302	364	425

* 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.