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TABLE 1 SOUTH ZONE PIER SPACING I UNDER MAIN DESIGN ROOF I DESIGN FLOOR TOTAL PIER lOAD , "r" -9EAMS LIVE lOAD I LIVE LOAD 12 WIDE 14 WIDE 16 wIDe 4 '.0" c.C. 20 P.S.F. 40 P.S.F 18501bs, 2160 Ibs. 2420 Ibs, -, 0" 0 ,-,. 20 P.S.F. 40 P.S.F 23101bs. 2700 Ibs. 3020 Ibs. :: - i' '.\""'. f'-O" O.C. 20 P.S.F. 40 P.S.F, 2/70Ibs. 3240 Ibs. 3630 Ibs. 7'-0" O.C. 2C: P.S.F 40 P.S.F. 3230 Ibs, 3780 Ibs. 4230 Ibs. E: -0" n r 2CJ F'.S.F. 40 P.S.F. 3690 Ibs. 4320 Ibs. 4840 Ibs. .... -.......... 9 '-0" O.C. 20 p.S.F. 40 P.S.F 41501bs. 4860 Ibs. 5440 Ibs. 10 '.0" D.C. (I'v'jaxi 20 P.S.F. 4C F.S.F. 46201bs. 54001bs. 6050 Ibs. TABLE 2 MIDDLE ZONE PIER SPACING I , I UNDER MAIN DESIGN ROOF I DESIGN FLOOR ! TOTAL PIER LOAD "I"-BEAMS LIVE LOAD LIVE LOAD 12 WIDE 14 WIDE 16 WIDE 4'-0" O.G. 30 P.S.F 40 P.S.F 2080 Ibs, 2440 Ibs. 2730 Ibs, 5 '.0" O.C. 30 P.S.F. 40 PST 2600 Ibs. 3040 Ibs. 34101bs. 6 '.0" D.C. 30 P.S.F. 40 P.S.F. 3120 Ibs. 3650 Ibs. 4090 Ibs. .,. -0" IG.C. 30 P.S.F. 40 P.S.F. 3650 Ibs. 4260 Ibs. 4770 Ibs. 8 '-a" Cl.C. 30 P.S.F. 40 P.S.F. 41701bs. 4870 Ibs. 5460 Ibs. g'.o" O.C. 30 P.S.F. 40 P.S.F 4690 Ibs. 5480 Ibs. 61401bs. 10'.0" O.C. (MaxI 30 P.S.F. 40 P.S.F. 5210 Ibs. 60901bs. 68201bs. SUPPORT REQUIREMENTS SINGLE WIDE HOMES The design loads used in selection of the support struc- ture are set forth in Tables 1 and 2.. The loads specified in the right hand coiumn of these tables are the minimum values to be used for pier anc footing design based on the indicated roof live load and a floor live load of 40 pounds per square foot (PSF). Load bearing supports and footings may be subject to approval by the local enforcement agency. Each pier shall have sufficient capacity to support the design loads specified in Tabies 1 or 2. The required dimensions of footing~: will depend on soil bearing capacity test results, In lieu of soH tests, confer with the local Building Authori- tY' for the recommended soil bearing capacity in your locale All grass and organic materia! must be removec from the area beneath the footings. The support requirements for homes designed for 40 PSF and higher roof loads (and those specifically indicated middle zone homes) are found in the supplement accom- panying this manual entitled "Manufactured Home in- stallation for Perimeter Blocking." NOTES: FOR TABLES 1 and 2 1. Footings and piers must be designed to support the loads (right hand column) at the selected spacing. 2. The tabulated pier loads include the indicated live loads plus home dead loads. 3. The maximum spacing of supports shall not exceed 10 feet. 4, Where it is impractical to maintain spacing, such as in the axle area, the average Of the distance to each adjacent support may be used to determine support requirements: for example, if the distances to the adjacent supports were 6'-0" and 8'-0" the average spacing would be 7'-0". )r 6'-0" ~ 8'-0" L, "! X X X PIERA PIER B PIER C The average spacing for pier 8 wouid be 6 + 8/2 = 7 ft. Therefore, pier would be designed for 7 ft. pier spacing. 5, Aad addition?' ~!ers at eac~ S~d~ of a sin~le sidewall opening and between multiple openings (windovv or door) larger tnan 4 -0 , The reqUlrea pier capacity equals 125 fbs. (145 Ibs, @ 16' wide) y openrng width (ft.). Additionai piers are to be located at all locations under the fioo:- edge joists that are marked with paint o~ paper tags. .. ~, !I!-, ::. -'~:';'?;:~'~:"l':-,-;-'-:;,:il!'ff,tIfl:Ji~~,!i:'f:Ii~.I0~.l"" ,: 7","'