§870.TABLE G. Pier Load and Minimum Pier Capacity for 16 Foot Wide Section (Pounds)

	Roof Live Load (psf)	Mating/Perimeter Wall Opening (feet)
		5		10		15	20	25	30		35
	20	1200	2300		3500		4700	5800	7000		8100*
	30	1600	3100		4700		6200	7800	9300*		10900*
	40	1900	3800		5800		7500	9700*	11600*		13600*
Soil's Load- Bearing Capacity (psf)	Footing Area (square inches)
1000	20	173	331		504		677	835	1008	1166
	30	230	446		677		893	1123	1339	1570
	40	274	547		835		1080	1397	1670	1958
1500	20	144	221		336		451	557	672	778
	30	154	298		451		595	749	893	1046
	40	182	365		557		720	931	1114	1306
2000	20	144	165		252		338	418	504	583
	30	144	223		338		446	562	670	785
	40	144	144		418		540	698	835	979
3000	20	144	144		168		226	278	336	389
	30	144	149		226		298	374	446	523
	40	144	182		278		360	466	557	653
4000	20	144	144		144		169	209	252	292
	30	144	144		169		223	281	335	392
	40	144	144		209		270	349	418	490

 

*    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.