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FOUNDATION AND SUPPORT REQUIREMENTS (Continued) TABLE 3 PIER LOADING UNDER CENTERLINE BEAM DOUBLE-WIDE HOMES 20' WIDE HOMES 24' WIDE HOMES 26' & 28' WIDE HOMES 32' WIDE HOMES Span Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Between (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) Columns 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF (FT.) Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof J5ee note 1 Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone .....; ~6 900 1200 1500 1080 1440 1800 1260 1680 2100 1350 1800 2250 10 1500 2000 2500 1800 2400 3000 2100 2800 3500 2250 3000 3750 12 1800 2400 3000 2160 2880 3600 2520 3360 4200 2700 3600 4500 14 2100 2800 3500 2520 3360 4320 2940 3920 4900 3150 4200 5250 16 . 2400 3200 4000 2880 3840 4800 3360 4480 5600 3600 4800 6000 18 2700 3600 4500 3240 4320 5400 3780 5040 6300 4050 5400 6750 20 3000 4000 5000 3600 4800 6000 4200 5600 7000 4500 6000 7500 24 3600 4800 6000 4320 5760 7200 5040 6720 8400 5400 7200 9000 NOTES: 1) Where a column is located between two openings, sum the loads for each opening to obtain the required pier load. 2) See table 4 for minimum footing sizes based on pier loads and allowable soil bearing capacities, 3) The concentrated load consist of roof load only, 4) Pier locations at the marriage wall are marked with paint or metal indicator straps, 5) Piers used side by side to obtain the required load are permissible, PIER LOADING AND INSTALLATION UNDER SIDEWALL DOORS AND WINDOWS ;> Typical door or Unit sidewall ~Unit sidewall window opening - k Width varies - see table below. . A+-, /Floor joists . I 1-.:2- FI.'~ W ~ I ~ ..Jt'" oor JOISts I f7:-' I k- '-'-' Typical Pier ~ ,. Typical Pier ~V "'-- I Seenole6. ~ ".t.' . 4x4 block, 4" I ger ~ ... 'It' . ,k', ....,. . I than joist spacing. , . Installed such that it . , . . A +--' ' . spans joists on Pier installed when l Pier installed when I SECTION 'A-A' I either side of door joist Is not under Joist Is under door Jamb, door jamb, jamb. TABLE 3A 48" OPENING 78.5" MAX. OPENING 108" MAX. OPENING 121" MAX. OPENING Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load Pier load. Pier load Pier load Pier load Nominal (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) (LBS) Unit 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF Width Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof Roof 1FT.! Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone Zone 12 500 640 790 810 1050 1280 1110 1440 1760 1250 1610 1980 T 14 550 710 870 890 .1160 1430 1230 1600 1960 1370 1780 2200 16 600 780 960 980 1270 1570 1340 1750 2260 1500 1960 2420 18 650 840 1040 1050 1380 1700 1450 1890 2340 1620 2120 2620 20 440 570 690 720 920 1130 990 1270 1550 1100 1420 1730 24 500 640 790 810 1050 1280 1110 1440 1760 1250 1610 1980 26 520 680 830 860 1110 1360 1180 1520 1870 1320 1710 2100 28 540 700 860 880 1140 1400 1210 1570 1930 1350 1750 2160 32 590 760 940 950 1240 1530 1310 1710 2110 1470 1910 2360 NOTES: 1) Piers are required at all entry doors and window openings greater than four feet. 2) Piers are also required at bay windows where sidewall opening is greater than four feet. 3) Piers are not required at door and window openings located along endwalls. 4) Piers are not reqUired at some door and window locations if the floor has been reinforced at the factory, Contact the division that built your home to determine if this is applicable to your home. 5) See table 4 for minimum footing sizes baaed on pier loads and allowable soil bearing capacities. 6) Maximum pier setback is 6". If pier load (from table 3A) is 1240 Ibs. or less, and nominal unit width is 12', 14" 20', 24', 26' or 28' than setback may be 1 n" m,," If ni..r load (from table 3A) is 1930 Ibs. or less, and nominal unit width is 16'. 18' or 32' than setback may be 10" max,