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<br />~3-2~-03
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<br />lG:24 PALM HARBOR ENG
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<br />.lU=O.lu (.1.::3 JCC"::J
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<br />SECTION 3 - BLOCKING AND LEVELING PROCEDURE
<br />GENERAL NOTES AND TABLES
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<br />Notes for Tables 2 and 2.1
<br />~l;nilllum I-Beam pier ~paclng as shown in Table 2 above for n'led size footing pads, or adjusted to
<br />larger area footing pads based on loads in Table: 2.1. For either case, the maximum I-Beam pier
<br />spa.::ing IS S'-O" for lr' I.beam chasSis. 10'..0" for IO"I.Beam and 12'.0" for 12" I-Beam chassis.
<br />Penmeter pll'r spacing as ShO'oVll in Table 2, or adjusted to larger tooting pads per loads in Table 2.1,
<br />hut In no case greater t~an 8' -0".
<br />When perimetc:r piers are required. additional piers must be inslalled along the mating line of
<br />multiple section units \\:hcre mating walls exist. Piers are not reqwred in open span areas_ \\'here
<br />mating walls exist on one section onl)'..lhe maximum spacing is the same as the perimeter spacing as
<br />determined in J and 2 above. Where mating walls are dira:t.Iy opposile to each other (one on each
<br />section), tire maximum spacing is half the perimeter spacing, or as detennined for combined loading
<br />in table 2,1 above. These piers arc in addition to the piers located at open span area columns.lsee also
<br />Secuon 4)
<br />The distance between any adjacent piers may deviate from tile listed spacing by 10%. so long as the
<br />overall average distance between piers is eqU:llto or less than the listed spacing,
<br />See footer details in Section 2 for double footer configurations.
<br />For 2xlO min, Iwnber footers. use pier spacing tabulated in the 16xl6x4 column. Refer also to
<br />lumber footer configu....ltions and re'.quirc:~nts in Section 2 of this manual.
<br />All the above requiremenl'i must be adhered to when a min. 4'" thick slab is installed, For pier
<br />spacing on the slab, the double 16xl6x4 column may be used, The slab may count as the bottom
<br />layer of required pads as shown in Section 2. Special designs are required for slabs located in area.s
<br />prone to frost heave, Special designs are also required for 'ribbon' footing designs.
<br />For 500 PFS soil. size the footing according to the pier load table in Section 4,
<br />Example for using Alternate Tables 1,1 and 2.1: alternate pad desired has 1800 LBS bearing capacity
<br />in 1000 PSF soil. The home IS a 14 vvide to be installed in the 20 PS~ roofload zone using perimeter
<br />blocj.,ing.
<br />a I In Tabk 2. J, tinu the ,'"lumn for a 14 wide floor.
<br />:.! r:O!'l!: ,h,,'.\ n :0.: -:"I:,:-,lll ~nd a !.'lad whi.:h i:; e{illcl t,l or it:'~~ :l"<,;;! the pad '~:lpa~:ity sf ,gf!C LBS
<br />make ~ure to hne up With the appropriate roof load (20 or 'Soulh' zone).
<br />,'I From lhe table, read maximum spacing for I-Beam pi.:rs. LoadatS'-O" pier spacing is 21 15Lbs,
<br />NO GOOD since pad capacity is 1800 LBS max. Load at 6'-0" is I 585lbs, OK since less than
<br />pad capacity, + I-Beam piers may be at ma~. 6'-0"
<br />dl Repeat procedure for perimeter pien;. Load at 6'-O~ is 2035 LBS > 1800 LBS+ No Good
<br />Load 3t4'-0" is 1360 LBS <: 1800 LBS + OK
<br />FOOTING CAPACITY TABLE (POUNDS)
<br />
<br />5,
<br />b,
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<br />7,
<br />
<br />~.
<br />9,
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<br />FOOTING SOILCAPAf'1iY I~F'
<br />SIZEiin,\ 500 1000 I 1500 2000 ?500 ~OOO
<br />16x 16x4 600 1490 2 377 3265 4,154 5,150
<br />16 II 32 x 4 1,490 3266 4,143 6,289 7.500 8681
<br />18 x 18 x 4 835 t 960 3085 4192 5317 6442
<br />20x20x4 1090 2.490 3877 5.228 6,617 . 8.006 .
<br />24x24x6 1,700 3.710 5710 7,555 9,555 11.329 .
<br />30x30x6 2835 5,960 9085 11,706" 14,831. 17.956.
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<br />NOles: 1, Footers for loads exceeding 10.OOOLBS, or for the condition indicated by'.', require double stacked
<br />block piers (see pier 'B' and pier 'C.).
<br />2. 16x32x4 fooler consists of double stacked 16x 16x4_ See footer details.
<br />~. For douhle 2x 10 min, lumber footings, use the loads tabulated for 18xl8x4 footers,
<br />4, These footing loads are also applicable when an equal thiclcnells of slab is installed.
<br />5. Premanut'actured footers may ahemali vely be used within the terms of their approval and max. load capacity,
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<br />Set:tJon }, Blocking and Leveling
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<br />Page 4 COPYRIGIIT @ ~ BY P.6d-'vl H..o..RBOR HOMES, me.
<br />All Rights Reserved.
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