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<br />FOUNDATION AND SUPPORT REQUIREMENTS (Continued) <br /> <br />SUPPORT REQUIREMENTS <br /> <br />The design loads and minimum footing sizes used in the <br />selection of the support structure are set forth in Table 4. <br />The loads and footing sizes are the minimum values to be <br />used for the support structure and are based on the indi- <br />cated roof live load and a floor live load of 40 Pst. <br /> <br />All load bearing supports and footings may be subject to <br />approval by the local Enforcement Agency. <br /> <br />The support requirements for homes designed for 60 <br />PSF and higher roof load (and those specifically indicated <br />middle and north zone homes) are found in the Supplement <br />accompanying this manual entitled "Manufactured Home <br />Installation for Perimeter Blocking." <br /> <br />Contact the Skyline division that built the home for more <br />information concerning perimeter blocking. <br /> <br />TABLE 1 <br />PIER LOADING UNDER MAIN I-BEAMS <br />SINGLE-WIDE HOMES <br /> <br /> 12'WIDE HOMES 14' WIDE HOMES 16'WIDE HOMES <br />Pier Pier Load Pier Load Pier Load Pier Load Pier Load Pier Load Pier Load Pier Load Pier Load <br />Spacing (Lbs) (Lbs) (Lbs) (Lbs) (Lbs) (Lbs) (Lbs) (Lbs) (Lbs) <br />Under 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF 40 PSF 20 PSF 30 PSF '40 PSF <br />Main Roof Roof Roof Roof Roof Roof Roof Roof Roof <br />I-Beams Zone Zone Zone Zone Zone Zone Zone Zone Zone <br />(Ft.) <br />4 2130 2420 2560 2410 2740 2940 2700 3060 3320 <br />5 2660 3020 3190 3020 3420 3670 3370 3830 4150 <br />6 3190 3620 3830 3620 4110 4410 4050 4590 4980 <br />7 3720 4230 4470 4220 4790 5140 4720 5360 5810 <br />8 4250 4830 5110 4820 5480 5880 5400 6120 6640 <br />9 4780 5440 5750 5430 6160 6610 6070 6890 7470 <br />10 5320 6040 6380 6030 6850 7340 6750 7650 8300 <br />WI. Per Foot 532 604 638 603 685 734 675 765 830 <br />See Note 4 . <br /> <br />NOTES: <br /> <br />1, See Table 4 for minimum footing sizes based on pier loads and allowable soil bearing capacities. The footing sizes and <br />pier loads are minimums required for the applicable conditions. The footing shall not be smaller than the pier it supports <br />of 144 square inches, <br /> <br />2. The maximum spacing of supports is not to exceed 1 0 feet. <br /> <br />3. Where it is impractical to maintain spacing, such as in the axle area, the average of the distance to each adjacent support <br />may be used to determine support requirements: for example: if the distances to the adjacent supports were 6'-0" and <br />8'-0", the average spacing would be 7'-0". <br /> <br />, <br /> <br />\\\\\11111/1 <br />\\\ A III <br />,\ u\\ ~. M/1' 1/ <br />" ~,~ ,......." rr ~ <, <br />~ ~.,....' ,..,...( ...-;.. <br />2 ./ CERT ..... ~ <br />=~:: # 09703 \ D\ n~ <br />= :~o...l.u..~ <br />~ ... STATE OF .:....., :: <br />-- '. I c::I- 8 - <;0 .. ...... - <br />S... ;"'/~'O/A\:~~""'~ 2 <br />//,,./'J,,.,.... ...' \.. ~ ~ ...." <br />III ON A \. \\~' <br />The average spacing for pier B would be (6 + 8) / 2 = 7 ft., therefore, 1111/1111\\\ <br />pier 8 would be designed for 7 ft. pier spacing. <br /> <br />4. The last line in the above Table is the weight per foot each main I-beam is carrying. Multiply this number by the span <br />a pier is carrying to determine the required capacity of that pier. <br /> <br />6'-0" 8'-0" <br />1< >1< >1 <br />1 1 1 <br />Pier A Pier B Pier C <br /> <br />10 <br />