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

Section 870.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.