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TABLE 2308.3A ~EADER SPANS" FOR EXTERIOR BEARING WALLS XlMUM HEADER SPANS FOR DOUGLAS RR-LARCH, HE R, SOUTHERN PINE, AND SPRUCE-PINE-FlR2 AND . REQUIRED NUMBER OF JACK STUDS) BuIIdIIlg WIdIIl3 (II) -'-20 21 36 ....... - Spat NJ Spat NJ $pM NJ Roof. C bmng4 2r2lri4. 3-6 I 3-2 I 2-10 I 2-2x6 S-S I 4-8 I 4-2 I 2-2x8 6-10 I SoH"~ 2 54 2 2-2dO 8-S 2 7-3 2 6-6 2 2-2x12 9-9 2 8-5 2 7-6 2 3-2x8 8-4 I 7-S I 6-8 I 3-2x1O 1 ()..6 1 9-1 2 8-2 2 3-2x12 12-2 2 10-7 2 9-S 2 4-2x8 9-2 I 8-4 I 7-6 1 ! 4-2x10 11-8 1 1 ()..6 1 9-5 2 4-2x12 14-1 I 12-2 2 10-11 2 : - - - Notes: · NJ - $mbee of jack studs requiIed 10 support each end. Where the num- of RqUin:d jack studs equals I. the header may be supported by a framing ancbor lIItac:bIld 10 the fuIl-height wall stud. ! L Spans are given in feet and incbes (ft-in). 2. Tabulated IIlIIues assume #2 Grade IlIIIIbei:. 3. Building width is l1Ie8SlIred perpendicular to the ridge. For widths betwcc:n those shown. spaIIS may be interpolated. 4.Maximum loads: Roof dead 10lId of 20 psf and 1M load of 20 psf, floor dead load of 10 psf and fuIe load of 40 psf. and wall dead load of II psf. TABLE 2308.3A - TABLE 2308.3B TABLE 2308.38 HEADER SPANS' FOR EXTERIOR BEARING WALLS (MAXIMUM HEADER SPANS FOR DOUGLAS FlR-LARCH. HEM-FIR, SOUTHERN PINE, AND SPRUCE-PINE-FlR2 AND REQUIRED NUMBER OF JACK STUDS) IIuIIdIng WIdIbI (II) 20 21 38 .......~ - $pM NJ .... NJ $pM NJ Roof, Ceiling 2-2x4 3-1 I 2-9 I 2-5 I & I Center- 2-2x6 4-6 I 4-0 I 3-7 2 bearing F1lJ01"1 2-2x8 5-9 2 S-O 2 4-6 2 2-2x10 7-0 2 6-2 2 S-6 2 2-2x12 8-1 2 7-1 2 6-5 2 3-2x8 7-2 1 6-3 2 5-8 2 3-2x10 8-9 2 7-8 2 6-11 2 3-2x12 10-2 2 8-11 2 8-0 2 4-2x8 8-1 I 7-3 I 6-7 1 4-2x10 10-1 I 8-10 2 8-0 2 4-2x12 11-9 2 10-3 2 9-3 2 Roof, Ceiling 2-2x4 2-8 I 2-4 I 2-1 I & I Clear 2-2x6 3-11 I 3-S 2 3-0 2 Span FJoor4 2-2x8 S-O 2 4-4 2 3-10 2 2-2x10 6-1 2 5-3 2 4-8 2 2-2x12 7-1 2 6-1 3 5-5 3 3-2x8 6-3 2 5-5 2 4-10 2 3-2x10 7-7 2 6-7 2 5-11 2 3-2x:I 2 8-10 2 7-8 2 6-10 2 4-2x8 7-2 I 6-3 2 5-7 2 4-2x10 8-9 2 7-7 2 6-10 2 4-2x12 10-2 2 8-10 2 7-11 2 - - Notes: NJ - Number of jack studs required 10 support each end. Where the num- bee of RqUin:d jack studs equals I, the header may be supported by a framing anchor attached to the full-height wall stud. I. Spans are given in feet and inches (ft-in). 2. Tabulated values assume ##2 Grade lumber. 3. Building width is measured perpendicular 10 the ridge. For widths between those shown, spans may be interpolated. 4. Maximum loads: Roof dead load of 20 psf and fuIe load of 20 :: psf, floor dead load of 10 psf and fuIe load of 40 psf, and wall 5 dead load of II psf. = 'R.~..1 1I'Ul'"'j E"Va.t1.~ I 353;2 Pe\"idoT- L.",. I b~e..r~ Po,~+- ~ e.. ~~ (1:. ~ w.. ~ \) .......... ~ .. ~ ~ . s:a.-.r~ LOIol ~u c.,.&c> u~ U .. ~.rt. t=" ,)Ja-r!:> '4'U ~ ,~ ~ ~ (,,'-1) ,.r V>4- ~ ..rnJ ; ~ y '-0,"" c;> J:) StJ & cS;) . Nf C')~ FLORIDl BUILDING CODE - BUILDING T\f-..j ~r'-& 'Z'iof..SA- "') ..... YG~I ~/~,4i pA~o~ 23.15