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CITY OF SANTA ANA
<br />mrtnTg-and"Bvilrtm�)�g e n c y
<br />�� D �� INFORMATION BULLETIN / PUBLIC - BUILDING CODE
<br />REFERENCE NO.: LARC Effective: 01-01-2017
<br />DOCUMENT NO. P/BC 2023-004 Revised: 01-01-2023
<br />DEPARTMENT OF BUILDING AND SAFETY Previously Issued As: P/BC 2013-004
<br />WOOD FRAME PRESCRIPTIVE PROVISIONS
<br />ONE STORY RESIDENTIAL CONSTRUCTION ONLY
<br />(Formerly known as Type V Sheet)
<br />The wood frame prescriptive provisions are for one and two family dwellings and townhouses of wood
<br />frame construction, not exceeding one story in height. This Information Bulletin is for information and
<br />reference only and is not a substitute for accurate drawings prepared for each proposed construction
<br />project.
<br />LARC refers to the Los Angeles City Residential Code. The number following R references the code
<br />section within the Los Angeles City Residential Code.
<br />All buildings erected using provisions detailed herein must comply with restrictions listed below:
<br />a) Roof and floor boundary elements shall not cantilever past exterior wall line(s) below.
<br />b) This prescriptive provisions shall not be used for irregular structures located in Seismic Design
<br />Categories C, Do, D1, and D2 per 2023 LARC Section R301.2.2.2.5.
<br />FOOTINGS ON EXPANSIVE SOILS
<br />Footing systems on expansive soil shall be constructed in a manner that will minimize damage to the
<br />structure from movement of the soil. All soil in the City of Los Angeles is considered expansive unless
<br />proven otherwise by an approved soils report.
<br />1. Depth of footings below the natural and finished grades shall not be less than 24 inches for exterior
<br />and 18 inches for interior footings.
<br />2. Exterior walls and interior bearing walls shall be supported on continuous footings.
<br />3. Footings shall be reinforced with four Y2-inch diameter deformed reinforcing bars. Two bars shall be
<br />placed 4 inches from the bottom of the footing and two bars within 4 inches from the top of the footing.
<br />Reinforcement shall have a minimum 3-inch concrete cover for concrete cast against earth and
<br />reinforcement not exceeding 5/8-inch shall have minimum 1-1/2-inch concrete cover when not cast
<br />against earth.
<br />4. Concrete floor slabs on grade shall be placed on a 4-inch fill of coarse aggregate or on a 2-inch sand
<br />bed covered with a minimum 6 mil moisture barrier membrane. The slabs shall be at least 3-1/2
<br />inches thick and shall be reinforced with '/2" diameter deformed reinforcing bars. Reinforcing bars
<br />shall be spaced at intervals not exceeding 16 inches each way.
<br />5. The soil below an interior concrete slab shall be saturated with moisture to a depth of 18 inches prior
<br />to placing the concrete.
<br />6. All drainage adjacent to footings shall be conducted away from the structure by a 3-ft wide sloped
<br />apron draining into an approved non -erosive device.
<br />ENERGY REQUIREMENTS
<br />All work must comply with the State of California Title 24 Energy Requirements.
<br />Asa covered entity under Title II of the Americans with Disabilities Act. the City of Los Angeles does not discriminate on the basis of disability and, upon request,
<br />Will provide reasonable accommodation to ensure equal access to its programs, services and activities.
<br />Page 1 of 9
<br />P/BC 2023-004
<br />ALLOWABLE SPANS AND LOADS FOR WOOD STRUCTURAL PANEL SHEATHING AND SINGLE -FLOOR GRADES CONTINUOUS OVER TWO
<br />OR MORE SPANS WITH STRENGTH AXIS PERPENDICULAR TO SUPPORTS NOTE: APPLIES TO PANELS 24" OR WIDER (T-
<br />R503.2.1.1 1
<br />SHEATHING GRADES
<br />ROOF
<br />FLOOR
<br />PANEL SPAN RATING
<br />Roof/Floor Span
<br />MINIMUM
<br />PANEL
<br />THICKNESS
<br />INCHES
<br />MAXIMUMS AN INCHES
<br />LOADS PSF
<br />MAX. SPAN (INCHES)
<br />Panel edges with
<br />tongue and groove
<br />joints or with blocking
<br />EDGE SUPPORT
<br />NO EDGE
<br />SUPPORT
<br />TOTAL LOAD
<br />LIVE LOAD
<br />2410
<br />318
<br />24
<br />20
<br />40
<br />30
<br />24/16
<br />7/16
<br />1 24
<br />24
<br />50
<br />401
<br />16
<br />32/16
<br />15/32,1/2
<br />32
<br />28
<br />40
<br />30
<br />16
<br />40/20
<br />19/32, 5/8
<br />40
<br />32
<br />40
<br />30
<br />20
<br />48/24
<br />1 23/32, 314
<br />48
<br />1 36
<br />1 45
<br />35
<br />24
<br />CONNECTION FASTENING REMARKS
<br />Roof
<br />Blocking between joists or rafters to top plate
<br />4-8d box 2-1/2" x 0.113"
<br />Toe nail
<br />Ceiling joist to plate
<br />4-8d box 2-1/2" x 0.113"
<br />Toe nail
<br />Ceiling Joist not attached to parallel rafter, laps over partitions
<br />4-1 Od box 3" x 0.128"
<br />Face nail
<br />Collar tie rafter, face nail or 1 Y." 20-gage ridge strap4-10d
<br />box 3" x 0.128"
<br />Face nail
<br />Rafter or roof truss to plate
<br />3-16d box nails (3-1/2" x 0.135") or
<br />2 toe nails on one side and 1 toe nail
<br />3-1 Od common nails (3" x 0.148")
<br />on opposite side of each rafter or
<br />truss
<br />4-16d box (3-1/2" x 0.135"), or
<br />Toe nail
<br />Roof rafters to ridge, valley or hip rafters or roof rafter to minimum
<br />3-1 Od common 3-1/2 "x 0.148"
<br />3-16d box (3-1/2" x 0.135"), or
<br />End nail
<br />2" ridge beam:
<br />2-16d common 3-1/2" x 0.162
<br />Wall
<br />Stud to Stud (not braced wall panels)
<br />16d common 3-1/2" x 0.162"
<br />24" D.C. face nail
<br />1Od box 3" x 0.128"
<br />16" o.c. face nail
<br />Stud to stud and abutting studs at intersecting wall corners (at
<br />16d box 3-1/2" x 0.135"
<br />12" o.c. face nail
<br />16d common 3-1/2" x 0.162"
<br />16" o.c. face nail
<br />braced wall panels)
<br />Abutting Studs at interse cling wall corners, face nail
<br />16d 3-1/2" x 0.135 "
<br />12" o.c.
<br />Built -up header (2" to 2" header with I/V spacer)
<br />16d common 3-1/2" x 0.162"
<br />16 D.C. each edge face nail
<br />16d box 3-1/2" x 0.135"
<br />12" o.c. each edge face nail
<br />Continuous header to stud
<br />5 8d box 2-112" x 0.113"
<br />Toe nail
<br />4 Bd common 2-1/2" x 0.131"
<br />Toe nail
<br />Top plate to top plate
<br />16 common 3-1/2 " x 0.162"
<br />16" o.c. face nail
<br />1Od box 3" x 0.128"
<br />12" o.c. face nail
<br />8-16d (3-1/2" x 0.135")
<br />Face nail on each side of end joint
<br />Double top plate splice
<br />(minimum 24" lap splice length each
<br />side of joint
<br />Bottom plate to joist, rim joist, band joist or blocking (not at braced
<br />16d common 3-1/2" x 0.162"
<br />16" D.C. face nail
<br />16d box 3-1/2" x 0.135 "
<br />12" o.c. face nail
<br />wall panels)
<br />Bottom plate to joist, rim joist, band joist or blocking (at braced
<br />3-16d box (3-112" x 0.135"), or
<br />3 each 16" o.c. face nail
<br />wall anal)
<br />2-16d common 3-1/2" x 0.162"
<br />2 each 16" o.c. face nail
<br />4-8d box (2-1/2" x 0.113"), or
<br />3-16d box (3-112"x 0.135"), or
<br />toe nail
<br />4-8d common 2-112" x 0.131 "
<br />Top or bottom plate to stud
<br />3-16d box (3-1/2" x 0.135"), or
<br />2-16d common (3 %" x 0.135"), or
<br />End nail
<br />2-1 Od (3" x 0.162"), or
<br />End nail
<br />3-1 Od box 3" x 0.128"
<br />Top plates, lap at comers and intersections
<br />3-1d box x 0.1.
<br />)
<br />Face nail
<br />162") 2-166d comm
<br />m on (3 1//2"2" x 0
<br />Floor
<br />4-8d box (2-1/2" x 0.113"), or
<br />Joist to sill, top plate or girder
<br />3-8d common (2-112" x 0.131), or
<br />Toenail
<br />3-1 Od box 3" x 0.128"
<br />Rim Joist, band joist or blocking to sill or top plate (roof
<br />8d box 2-1/2" x 0.113"
<br />4" D.C.
<br />8d common (2-1/2" x 0.131"). or
<br />6" o.c.
<br />applications also)
<br />1 Od box 3" x 0.128"
<br />Band or rim joist to joist
<br />3-16d common (3-1/2" x 0.162"), or
<br />End nail
<br />4-10d box 3" x 0.128"
<br />20d Common (4" x 0.192"), or
<br />Nail each layer as follows: 32" o.c. at
<br />top and bottom and staggered.
<br />10d box (3" x 0.128"), or
<br />24" o.c. face nail at top and bottom
<br />Built-up girders and beams, 2-inch lumber layers
<br />sta ered on opposite sides
<br />AND:
<br />2-20d common (4" x 0.192"), or
<br />Face nail at ends and at each splice
<br />3-1 Od box 3" x 0.128" ,
<br />4-16d box (3-1/2 "x 0.135"), or
<br />Ledger strip supporting joists or rafters
<br />3-16d common (3-1/2" x 0.162), or
<br />At each joist or rafter, face nail
<br />4-10d box 3" x 0.128"
<br />Bridging to Joist
<br />2-10d 3" x 0.128"
<br />Each end, toe nail
<br />As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and, upon request,
<br />will provide reasonable accommodation to ensure equal access to Its programs, services and activities.
<br />P q P 9
<br />Page 5 of 9
<br />P/BC 2020-004
<br />-------------
<br />2x ROOF RAFTERS 112" WOOD
<br />STR. PANEL WI 8d @ 6'96"112"
<br />2z SOLID BLOCKING
<br />E.N. 8d@6"oc
<br />E.N 8d�a6"oc
<br />112"WOOD STR. PANEL
<br />Wi 8d pp 6"16"T 12" oc
<br />- --
<br />-- (COMhTONNAILS)
<br />2XCEWNGJOISTS
<br />2x ROOF RAFTER
<br />WI R-30 BATT. INSUL
<br />2X CEILING JOISTS
<br />3' MINIMUM CEILING JOIST -LAP @
<br />ASCIA BOARD
<br />WIR-30BATT.INSUL.
<br />9EACONNECTIONWALLISIL ER
<br />RAFTER TIE CONNECTION
<br />PAGES TE
<br />ISEE PAGES)
<br />2X SOLID BLOCKING
<br />OR EAVE LOCATION
<br />2X SOLID BLOCKING
<br />W! APPROVED FRAMING
<br />AND CONSTRUCTION
<br />WIAPPROVED FRAMING
<br />CLIPS EA. BLOCK
<br />SEE NOTE 13
<br />ANCHOR EA BLOCK
<br />2% DOUBLE TOP PLATE
<br />DOUBLE TOP PLATE
<br />3
<br />I
<br />WHERE STUCCO IS APPLIED
<br />Lo R-13+10 (BATT+RIGID INSUL.)
<br />z
<br />OVER SHEATHING-
<br />PROVIDE 2-LAYERS
<br />STUD GRADE)L @ 16"oc
<br />30' MIN.
<br />w i GRADED' PAPER UNDER
<br />LATH
<br />EE NOTE 1 SEE NOTE 14
<br />J 2X4 STUD WALL 16"oc
<br />SIB" WOOD STIR. PANEL
<br />'
<br />(DF STUD GRAD MINIMUM)
<br />W/10d @ 6'16'117 XK:
<br />in
<br />R-1 3 + 10 (BATT + RIGID INSUL.)
<br />z (COMMON NAILS) SEE NOTE 5 �
<br />OR WALL 8 OPENING
<br />REQUIREMENTS SEE
<br />_
<br />15 32 WOOD STR. PANEL
<br />2X FLOOR JOISTS @ 16'oc
<br />SEE NOTES 11,12 813
<br />OR STUCCO SHEAR PANEL
<br />2X BLOCKING @ 8'-0" oc FOR m
<br />I
<br />4
<br />2X P.T. SILL W/ 112" X 10' A.B.
<br />JOIST SPANS OVER S-0" 0
<br />15t3Y WOOD STR. PANEL '
<br />@ 6'oc. 0.229' X 3" X 3'
<br />2X SOLID BLOCKING
<br />OR STUCCO SHEAR PANEL]
<br />PLATE WASHERS
<br />3-112" CONC.SLAB,
<br />2X PT SILL W1 w
<br />ANCHOR BOLTS AND
<br />wI
<br />.19 BATT INSUL. z
<br />#4 DEFORMED REINF.
<br />PLATE WASHERS
<br />2X RIM JOIST I
<br />@ 16' O.C. EA WAY
<br />2" SAND BED. 6 MIL
<br />AT JOIST SPLICE
<br />ZX P T SILL Wl a
<br />SEE NOTE 15
<br />VAPOR RETARDER
<br />LAP 3' MIN WI 3-1Od
<br />ANCHOR BOLTS AND o,
<br />++
<br />PLATE WASHERS a•
<br />#3 DOWELS Cdt 24"OC,
<br />2)-#4 BAR, TOP
<br />EXTEND 36' 0 SLAB
<br />(FOR TWO POUR)
<br />(2f#4 BAR. BOTTOM
<br />T.O. CONC.
<br />(2�-tt4 BAR, TOP
<br />2 BAR. BOTTOM
<br />T. 0, CONCRETE
<br />FINISHED
<br />. 4X GIRDER
<br />FINISHED GRADE °O
<br />GRADE
<br />-#4
<br />4X4 P.T.POST z
<br />6 WI PO TCAP
<br />FINISHED
<br />Z
<br />GRADE n
<br />6..
<br />N
<br />r
<br />12" 2' SQ. PAd 12
<br />UNDIS
<br />- GROUN
<br />POURED
<br />CONC. PIER
<br />W/POST
<br />BASE
<br />WALL SECTION:
<br />SLAB -ON -GRADE CONSTRUCTION
<br />WALL SECTION: RAISED FLOOR CONSTRUCTION
<br />I. Anchor bolts M." x 10" embedded 7" and spaced maximum 6' with 0.229" x 3" x 3"" plate washers, minimum 2 anchor bolts per piece, located not
<br />more than 12" or less than 7 bolt diameters from each end of the piece.
<br />2. All foundation plates or sills and sleepers on a concrete or masonry slab, which is in direct contact with earth, and sills that rest on concrete or
<br />masonry foundations shall be preservative treated wood(AWPA U1) and field cut ends, notches, and drilled holes shall be field treated in accordance
<br />with AWPA M4. Fasteners (other than anchor bolts) in preservative treated wood or fire retardant treated wood shall be of hot dipped zinc coated
<br />galvanized steel or stainless steel.
<br />3. Minimum concrete strength 2,500-psi.
<br />4. Exterior walls, bearing walls and braced wall panels require continuous footings. R403.1
<br />5. 231'32" plywood required for 24" joist spacing.
<br />6. Where interior walls are shear walls, wall framing and sheathing shall extend to the roof sheathing.
<br />7. Footings on or adjacent to slopes shall meet the requirements of Section R403.1.7.
<br />8. Walls separating units in townhuses shall be provided with parapet in accordance with R302.2.2
<br />9. Projects located in the Very High Fire Hazard Severity Zone (VHFHSZ) must also incorporate the requirements of Section R337 into the design.
<br />10. Exterior walls of dwellings and accessory structures closer than 5-ft. (non-sprinklered) / 3-ft. (sprinklered) to the property line shall be 1-hr
<br />fire -resistance rated construction.
<br />I I. No openings other than approved foundation vents shall be permitted in the exterior walls of dwellings and accessory buildings where the exterior
<br />wall is less than 3-ft. to the property line.
<br />12. The area of exterior wall openings of non-sprinklered dwellings and accessory buildings located = 3-ft. and < 5-ft. to the property line shall be limited
<br />to 25 % of the wall area. Exterior wall openings are unlimited when exterior walls are located = 5-ft, for non-sprinklered buildings and = 3-ft. for
<br />sprinklered buildings.
<br />13. Eaves shall be of 1-hr fire -resistive construction on the underside when located between 2-ft. and S-ft. from the property line for non-sprinklered
<br />buildings and between 2-ft. and 3-ft. from the property line for sprinklered buildings. Detached garages within 2-ft of a property line may have a
<br />maximum 4-inch eave, provided the eave does not extend over the property line and is allowed by the Zoning Code.
<br />14. Eaves shall not project more than 4" for each one foot of required side yard, and shall provide a minimum 30" clear space between the eave and
<br />the property line (LAMC 12.22C20(b)).
<br />15. Exterior plaster (stucco) walls shall be provided with a corrosion resistant weep screed complying with Section R703.7.2.1
<br />As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and, upon request,
<br />will provide reasonable accommodation to ensure equal access to its programs, services and activities.
<br />Page 2 of 9
<br />P/BC 2023-004
<br />L..'3 VA',
<br />3 { ' MIN. MIN
<br />i 03 MAX.
<br />25% MAX. 40% MAX. 40% MAX. 60 h MAX,
<br />EXTERIOR WALLS AND
<br />BEARING PARTITIONS NON -BEARING PARTITIONS
<br />NOTCHING 8 BORING RAFTERS CEILING JOISTS AND FLOOR JOISTS EXTERIOR WALLS AND BEARING WALLS MAY HAVE BORED HOLES BETWEEN
<br />(NOTCHING NOT PERMITTED IN MIDDLE V3 JOIST SPAN) 40 AND 60 PERCENT WHEN STUD IS DOUBLED AND NOT MORE THAN TWO
<br />(HOLES SHALL NOT BE LOCATED WITHIN 2 IN OF A NOTCH) SUCCESSIVE DOUBLE STUDS ARE BORED IR502.8, R8U.7. t R60261
<br />3:12 TO4:12 SLOPE W12-LAYERS TYPE 15 FELT BN. Bd@6" oc -
<br />412 OR GREATER SLOPE Wf t-LAYER TYPE 15 FELi
<br />20 GA x 1-114"_ - 2-t6d EACH SIDE ROOF RAFTER
<br />STRAP @48' O.C. - -_ -�- - - ROOF SHEATHING B.N. 9d@6' OC
<br />?, ROOF RAFTER
<br />r 6 GE �IpL r
<br />2X ROOF RAFTER ROOFRAFfEIR
<br />- 2 X RIDGE BOARD. DEEPER 1`414- ..
<br />CUT END OF ROOF RAFTER EDGE NAIL
<br />YX BLOCKING
<br />ROOF SLOPE -COMP SHINGLES(R905.2) RIDGE JR0023) NAILS(TABLE ROM(,)) y ,�Wl FRAMING )
<br />ANCHOR
<br />A>},'�
<br />I
<br />2X BLOCKING
<br />2X SLOPED -I
<br />ROOF RAFTER
<br />2X BLOCKING '
<br />r
<br />EDGE NAILEDGE NAIL I , 2X4 @ 4' 0 C.
<br />15W WOOD STRUCTURAL PANEL - 3. 10d NAILS
<br />WrSd @676v1Y(COMMON NAILS) -
<br />RAFTER TIE CONNECTION I Ir` / '
<br />(SEE PAGE 4) f" _
<br />B.N. OW OC '\ t
<br />CEILING JOIST
<br />EDGE NAIL EDGE NAIL /
<br />j EDGE NAIL
<br />UPLIFT FRAMING CLIP PER TABLE R802.11-�- �-
<br />2X BLOCKING WI FRAMING PERPENDICULAR PARALLEL TO
<br />ANCHOR @ EACH BLOCKING TO ROOF RAFTERS ROOF RAFTERS
<br />BRACED WALL PANEL (SEE PAGE 6) INTERIOR SHEAR WALL AT ATTIC
<br />RAFTER SPAN (SEE PAGE 3)
<br />ENGINEERED DESIGNED REWIRED FOR CONNECTION.
<br />WHEN PURON USED TO REDUCE RAFTER SPAN _ - I� 2X RIDGE BOARD
<br />-9 2X ROOF RAFTERS
<br />12 3MIN SLOPE
<br />- 2XSOU?BLOCKING CEILING JOISTS (SEE PAGE 3)
<br />- 2X DOUBLE TOP PLATE - - At CEILING JOIST SPLICE PROVIDE
<br />- 2X STUDSAt
<br />PER RAFTER TIE CONNECTIONS (SEE PAGE 3)
<br />BRACED RAFTER CONSTRUCTION (R802.5.'1) BEARING PARTITION T INTERIOR SHEAR WALL
<br />HEADER (SEE PAGE 3 FOR SPAN) r� ' CONT. DOUBLE TOP PLATE
<br />SOLID BLKG. @ ALL
<br />UNSUPPORTED
<br />PLYWOOD EDGES
<br />ANCHOR BOLTS
<br />MIN 112" DIA x 10'.
<br />7" EMBEDMENT
<br />2 -4TOP & BOTTOM
<br />WALL FRAMING
<br />2X CEILING JOIST J
<br />GABLE SUPPORT
<br />NAIL TO JOIST
<br />t:
<br />HEADER
<br />(SEE PAGE 3 FOR SPAN)
<br />2X SILL PLATE
<br />_ MIN. 2 ANCHOR BOLTS PER BRACED
<br />d4: WALL PANEL, MAX 12" 8 MIN. 4' FROM
<br />a - ' EACH END OF THE PLATE SECTION
<br />HOLD DOWN EACH SIDE OF PANEL (1800N MIN. CAPACITY) PER PAGE 6
<br />THICKEN FOOTING AS REQUIRED FOR BUT EMBEDMENT DEPTH
<br />As covered entityunder Title II of the Americans with Disabilities Act the City of Los Angeles does not discriminate on the basis of disability and upon request, ,
<br />will provide reasonable accommodation to ensure equal access to Its programs, services and activities.
<br />Page 6 of 9
<br />0
<br />x
<br />CD
<br />x
<br />x
<br />Table 1
<br />ALLOWABLE SPANS FOR OF #2 ROOF
<br />RAFTERS (DF-LARCH) (T-R802.4.1(1))
<br />Ceiling not attached to rafters, UA =180
<br />Minimum Roof Slope: 3:12
<br />Dead Load: 10 psf (asphalt shingles or similar)
<br />Live Load: 20 psf
<br />RAFTER
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN'
<br />24
<br />11'-11"
<br />2x6
<br />16"
<br />14'-7"
<br />12"
<br />16'-10"
<br />24"
<br />13'-6"
<br />2x8
<br />16"
<br />18'-5"
<br />12"
<br />21'-4"
<br />24"
<br />18'-5"
<br />2x10
<br />16"
<br />22'-6"
<br />12"
<br />26. 0"
<br />24"
<br />21'-4"
<br />2xl2
<br />16"
<br />26'-0"
<br />12"
<br />26' 0"
<br />Table 3
<br />ALLOWABLE SPANS FOR DF #2 ROOF
<br />RAFTERS (DF-LARCH) (T-R802.4.1(2))
<br />Ceiling attached to rafters, UA = 240
<br />Dead Load:10 psf (asphalt shingles or similar,
<br />includes drywall and insulation)
<br />Live Load: 20 psf
<br />RAFTER
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN'
<br />24"
<br />11A1"
<br />2x6
<br />16"
<br />14'-l"
<br />12"
<br />15'-6"
<br />24"
<br />15'-1"
<br />2x8
<br />16"
<br />18'-5"
<br />12"
<br />20-5"
<br />24"
<br />18'-5"
<br />200
<br />16"
<br />22'-6"
<br />12"
<br />26'-0"
<br />24"
<br />21'-0"
<br />202
<br />16"
<br />26'-0"
<br />12"
<br />26'-0"
<br />Table 2
<br />ALLOWABLE SPANS FOR DF #2 ROOF
<br />RAFTERS (DF-LARCH) (T-R802.4.1(1))
<br />Ceiling not attached to rafters, UA = 180
<br />Minimum Roof Slope: 3:12
<br />Dead Load:20 psf (2" clay the or similar)
<br />Live Load: 20 psf
<br />RAFTER
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN'
<br />24"
<br />10'-4"
<br />2x6
<br />16"
<br />12'-7"
<br />12"
<br />14'-7"
<br />24"
<br />13' 0"
<br />2x8
<br />16"
<br />16'-0-
<br />12"
<br />18' 5"
<br />24"
<br />15-11"
<br />2x10
<br />16"
<br />19'-6"
<br />12"
<br />22'-6"
<br />24"
<br />E2xl2
<br />16"
<br />12"
<br />Table 4
<br />ALLOWABLE SPANS FOR DF #2 ROOF
<br />RAFTERS (DF-LARCH) (T-R802.4.1(2))
<br />Ceiling attached to rafters, UA = 240
<br />Dead Load:20 psf (2" clay tile or similar,
<br />includes drywall and insulation)
<br />Live Load: 20 f
<br />JOIST
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN'
<br />24"
<br />10'-4"
<br />2x6
<br />16"
<br />12'-7"
<br />12"
<br />14'-7"
<br />24"
<br />13'-0"
<br />2x8
<br />16"
<br />16-0"
<br />12"
<br />18'-5"
<br />24"
<br />15'-11"
<br />2x10
<br />16"
<br />19'-6"
<br />12"
<br />22'-6"
<br />24"
<br />18'-6"
<br />2xl2
<br />16"
<br />22'-7"
<br />12"
<br />26'-0"
<br />1. Rafter spans shall be measured along the horizontal projection of the rafter.
<br />Table 5
<br />ALLOWABLE SPANS FOR DF #2 CEILING
<br />JOISTS (DF-LARCH) (T-R802.5.1(2))
<br />Dead Load: 10 psf
<br />Live Load: 20 psf
<br />UA = 240
<br />JOIST
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN
<br />24"
<br />7'-3"
<br />2x4
<br />16'
<br />8'-11"
<br />12"
<br />W-10"
<br />24"
<br />10'-8"
<br />2x6
<br />16"
<br />1X-O"
<br />12"
<br />15'-0"
<br />24"
<br />13'-6"
<br />2x8
<br />16"
<br />16-6"
<br />12"
<br />19'-1"
<br />24"
<br />16'-5"
<br />2x10
<br />16"
<br />20'2"
<br />12"
<br />23'-3"
<br />Table 6
<br />RAFTER TIE CONNECTION
<br />ROOF LIVE LOAD 20-psf [Table R802.5.2(1)1"
<br />Minimum number of 16d common nails at rafter tie
<br />connection.
<br />RAFTER
<br />SLOPE
<br />TIE
<br />SPACING
<br />ROOF SPAN (FT)
<br />127
<br />24
<br />36
<br />3:12
<br />16"
<br />4
<br />7
<br />10
<br />24"
<br />5
<br />10
<br />15
<br />4:12
<br />16"
<br />3
<br />5
<br />8
<br />24"
<br />4
<br />8
<br />11
<br />5:12
<br />16"
<br />3
<br />4
<br />6
<br />24"
<br />3
<br />6
<br />9
<br />7:12
<br />16"
<br />3
<br />3
<br />5
<br />24"
<br />3
<br />5
<br />7
<br />1. When nails are clinched, nailing may be reduced 25 % .
<br />2. The refer ties shall be minimum 2 x 4
<br />P/BC 2023-004
<br />,m�
<br />t
<br />y aYn
<br />W daJoins per
<br />T s a<RWer rm
<br />W
<br />Per ede B
<br />Design as a truss system
<br />Minimum 3:12 slope
<br />eeart4, 11 ra RWw sin
<br />per Tads a w ee.gnae `Ty- -1
<br />Ar ,lope
<br />.te
<br />nea mo..aeo
<br />Design as a post and
<br />beam
<br />As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and. upon request,
<br />will provide reasonable accommodation to ensure equal access to its programs, services and activities.
<br />Page 3 of 9
<br />48" MIN. FOR METHOD WSP (`)
<br />AND
<br />96" MIN. FOR GBia'd) & PCP@d1 SEE NOTE 1.
<br />•' 4_
<br />..
<br />7N u
<br />f�
<br />i�
<br />e�
<br />a
<br />SWL BWL OWL
<br />l
<br />0.
<br />4' MAX OFFSET DESIGNATED BRACED
<br />z a 4' MAX OFFSET WALL LINE (BWL)
<br />zi
<br /><.4
<br />`L N
<br />O BWL
<br />20'-0" MAX
<br />BRACED WALL LINE LENGTH
<br />BRACED WALL PANEL REQUIREMENTS
<br />P/BC 2023-004
<br />NOTES:
<br />1. BRACED WALL LINES AT EXTERIOR WALLS SHALL HAVE A BRACED WALL
<br />PANEL LOCATED AT EACH END OF THE BRACED WALL LINE.
<br />EXCEPTION: FOR METHOD WSW?, THE BRACED WALL PANEL SHALL BE
<br />PERMITTED TO BEGIN NO MORE THAN 10 FEET FROM EACH END OF THE
<br />BRACED WALL LINE PROVIDED:
<br />METHOD WSP(`)
<br />UP TO 10' BRACING ONLY
<br />r:
<br />A LIDO
<br />OR 24"I AMIN.. 24" PANEL IS APPLIED TO EACH SIDE.
<br />24" THIS 24" WIDE PANEL DOES NOT COUNT AS
<br />BRACING
<br />METHOD
<br />B WSP
<br />_ UP TO 10' BRACING ONLY
<br />EIDLI
<br />OFT
<br />"
<br />1800 LBF HOLD-DOWN DEVICES REQUIRED AT
<br />THE ENDS OF EACH BRACED WALL PANEL
<br />2. MIXING BRACING METHODS WITHIN A BRACED WALL LINE IS NOT PERMITTED.
<br />3. INTERIOR BRACE WALL PANEL SHALL BE LOCATED NOT MORE THAN 10.0-FT
<br />FROM THE END OF A BRACED WALL LINE AS DEMONSTRATED IN FIGURE
<br />R602.10.2.2 OF THE LARC.
<br />4. HOLD-DOWN DEVICE SHALL BE APPROVED BY CURRENT LOS ANGELES CITY
<br />RESEARCH REPORT.
<br />BRACING REQUIREMENTS BASED ON SEISMIC DESIGN CATEGORY
<br />Roof/Ceiling Dead Load = 15-psf
<br />Minimum Total Length of Braced Wall Panels Required
<br />Wall Height = 10-ft
<br />Along each Braced Wall Line
<br />Floor Dead Load = 10-psf
<br />(ft)
<br />Braced Wall Line Spacing = 25-ft
<br />Seismic Design
<br />Story Location
<br />Braced Wall Line
<br />d 6. d
<br />Methods GB P, and PCP
<br />Method WSP P
<br />CategoSOC
<br />Length
<br />10
<br />8
<br />4
<br />20
<br />16
<br />5
<br />30
<br />24
<br />7.5
<br />SDC D28
<br />40
<br />32
<br />10
<br />50
<br />40
<br />12.5
<br />(a). Method GB (Gypsum Board) = Y:-in. minimum thickness gypsum board with 1-1/2-in. galvanized roofing nail, or 1-1/4-in. screws, Type W or S. for exterior sheathing, or 5d
<br />cooler nail, 0.086-in. diameter, 1-5/8-in. long, 15/64-in head for interior gypsum board. Maximum fastener spacing shall be 7-in. o.c. at panel edges, including top and bottom
<br />plates, and along intermediate supports. When method GS panels are applied to only one face of a braced wall panel, the minimum total length in the table shall be doubled.
<br />(b). Method PCP (Portland Cement Plaster) = 7/8-in. minimum thickness Portland cement plaster with 1-1/2-in., 11-gage, 7/16-in. head nails at 6-in. spacing (16-in stud spacing
<br />required). %-in. minimum gypsum wallboard shall be installed on the side of the wall opposite the bracing material, except when the minimum total length of braced wall panel
<br />in the Table is multiplied by a factor of 1.5.
<br />(c). Method WSP (Wood Structural Panel)=15/32-in. minimum thickness wood structural panel with 8d common (2-1/2-in x 0.131-in.) nails at 6-In. spacing along panel edges,
<br />12-in. spacing at intermediate supports, and 3/8-in. distance to panel edge. K-in. minimum thickness gypsum wall board shall be installed on the side of the wall opposite the
<br />bracing material, except when the minimum total length of braced wall panel in the Table is multiplied by a factor of 1.5.
<br />(d). Method GB and PCP braced wall panel height to width ratio (h/w) shall not exceed 1:1.
<br />(e). Multiply required braced wall panel lengths specified in the table by 1.2 when combined Roof Ceiling Dead load is between 15 psf and 25 psf.
<br />As a covered entity under Title II of the Americans With Disabilities Act the City of Los Angeles does not discriminate on the basis of disability and, upon request, will provide reasonable accommodation to ensure equal access to its programs, services and activities.
<br />Page 7 of 9
<br />Table 7
<br />ALLOWABLE SPANS FOR DF #2 HEADERS FOR
<br />EXTERIOR BEARING WALLS
<br />Max. Roof/Ceiling Dead Load: 20 psf
<br />Max Live Load 20 osf T-R602.7 1 1 23
<br />12-ft
<br />24-ft
<br />36-k
<br />Building
<br />Building
<br />Building
<br />SIZE
<br />Width
<br />N J
<br />Width
<br />N J
<br />Width
<br />NJ
<br />6-ft
<br />12-ft
<br />18-ft
<br />Tributary
<br />Tributary
<br />Tributary
<br />Width
<br />Width
<br />Width
<br />2-2x6
<br />6'- 0"
<br />1
<br />4'- 7"
<br />1
<br />T- 10"
<br />1
<br />2-2x8
<br />1 T- 7"
<br />1
<br />1 5'- 9"
<br />1
<br />4'- 10"
<br />2
<br />2-200
<br />9'-0"
<br />1
<br />6'- 10"
<br />2
<br />5'- 9"
<br />2
<br />2-2xl2
<br />10'- 7"
<br />2
<br />8'- 1"
<br />2
<br />6'- 10"
<br />2
<br />3-2x8
<br />9'- 5"
<br />1
<br />7'- 3"
<br />1
<br />6'- 1"
<br />1
<br />3-200
<br />1 l'- 3"
<br />1
<br />8'- 7"
<br />1
<br />T-3"
<br />2
<br />3-2x12
<br />13'- 2"
<br />1
<br />10'-1"
<br />1 2
<br />1 8- 6"
<br />1 2
<br />1. Building width is perpendicular to ridge measured to exterior walls
<br />2. NJ- Number of Jack Studs required to support each end of a header
<br />3. Tributary width is the effective length that the member supports
<br />Table 9
<br />ALLOWABLE SPANS FOR DF #2 FLOOR
<br />JOISTS (OF -LARCH) (T-R502.3.1(2))
<br />Light Dead Load: 10 psf
<br />Live Load: 40 psf
<br />UA = 360
<br />JOIST
<br />SPACING
<br />ALLOWABLE
<br />SIZE
<br />SPAN
<br />24"
<br />8'-3"
<br />2x6
<br />16"
<br />9'-9"
<br />12"
<br />10'-9"
<br />24"
<br />10'-5"
<br />2x8
<br />16"
<br />12'9"
<br />12"
<br />14'-2"
<br />24"
<br />12' 9"
<br />2x10
<br />16"
<br />15-7"
<br />12"
<br />18' 0"
<br />24"
<br />14'-9"
<br />2x12
<br />16"
<br />18'-1"
<br />12"
<br />20'-11"
<br />P/BC 2023-004
<br />Table 8
<br />ALLOWABLE SPANS FOR DF #2 HEADERS FOR
<br />INTERIOR BEARING WALLS
<br />Max. Roof/Ceiling Dead Load: 20 psf
<br />Max Live Load 20 psf T-R602.7 2 1. Z3
<br />12-ft
<br />24-k
<br />36-ft
<br />Building
<br />Building
<br />Building
<br />SIZE
<br />Width
<br />N J
<br />Width
<br />N J
<br />Width
<br />NJ
<br />6-ft
<br />12-ft
<br />18-ft
<br />Tributary
<br />Tributary
<br />Tributary
<br />Width
<br />Width
<br />Width
<br />2-2x6
<br />6'- 1"
<br />1
<br />4'-4"
<br />1
<br />T- 6"
<br />1
<br />2-2x8
<br />T- 9"
<br />1
<br />1 5'- 5"
<br />1
<br />1 4'-5-
<br />2
<br />2-200
<br />9'- 2"
<br />1
<br />6'- 6"
<br />2
<br />5'- 5"
<br />2
<br />2-2xl2
<br />10'- 9"
<br />1
<br />7'-7-
<br />2
<br />6-3-
<br />2
<br />3-2x8
<br />W- 8"
<br />1
<br />6'-10"
<br />1
<br />5'- 7"
<br />1
<br />3-2x10
<br />11'- 5"
<br />1
<br />8--1"
<br />1
<br />6'-7"
<br />2
<br />3-2xl2
<br />13'-6-
<br />1
<br />9'-6"
<br />2
<br />7-9"
<br />2
<br />Table 10
<br />ALLOWABLE SPANS FOR DF #2 FLOOR GIRDERS
<br />SUPPORTING ONE FLOOR ONLY (T-R602.7(2))
<br />Max. Floor Dead Load: 15 pSf 1 2
<br />SIZE
<br />12-ft Building
<br />Width
<br />24-ft Building
<br />Width
<br />36-ft Building
<br />Width
<br />6-ft Tributary
<br />Width
<br />12-ft Tributary
<br />Width
<br />18-ft Tributary
<br />Width
<br />2-2x6
<br />6'- 1"
<br />4'- 4"
<br />T- 6"
<br />2-2x8
<br />T- 9"
<br />5% 5"
<br />4'- 5"
<br />2-2x10
<br />9'- 2"
<br />6% 6"
<br />5'- 3"
<br />2-2xl2
<br />to,- 9"
<br />T- 7"
<br />6'- 3"
<br />3-2x8
<br />9'- 8"
<br />61- 10"
<br />5'- 7"
<br />3-2x10
<br />11'- 5"
<br />81- 1"
<br />6'- 7"
<br />3-2xl2
<br />13'- 6"
<br />9% 6"
<br />7-9" 3
<br />1. Building width is perpendicular to ridge measured to exterior walls
<br />2. Minimum 4x post
<br />3. Minimum 46 post for 36' building width and 3-202 member.
<br />As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and, upon request,
<br />will provide reasonable accommodation to ensure equal access to its programs, services and activities.
<br />Page 4 of 9
<br />SEISMIC STRAPS: TWO MIN.
<br />REFER TO IB PIPC 2017-003
<br />FOR REQUIREMENTS
<br />T&P VALVE PIPED TO EXTERIOR
<br />3/4" MIN, PIPE. NO THREADS
<br />ALLOWED IN BOTTOM PIPING
<br />4"
<br />? l GARAGE FLOOR
<br />NOTE: NO GAS -FIRED WATER HEATER ALLOWED IN BEDROOMS. BATHROOMS,
<br />CLOTHES CLOSETS, OR ANY SPACE OPENING INTO A BEDROOM OR BATHROOM.
<br />WATER HEATERS WATER
<br />20" CLEAR
<br />30' CLEAR
<br />rr
<br />OPENABLE
<br />AREA
<br />OPENABLE
<br />AREA
<br />N
<br />MIN. SIZE WINDOW MIN. SIZE WINDOW
<br />FOR 20"CLEAR WIDTH AND FOR 24" CLEAR HEIGHT AND 5.0
<br />5.OS.F.OPENABLE AREA
<br />S,F OPENABLE AREA
<br />FLOOR LEVEL
<br />1.20" MIN. CLEAR WIDTH
<br />2.24" MIN. CLEAR HEIGHT
<br />3.5.0 SF MIN. OPENABLE AREA AT GRADE -FLOOR ONLY, 5.7 SF MIN. ELSEWHERE.
<br />EMERGENCY ESCAPE/ RESCUE OPENING (R310)
<br />a ,a I
<br />e
<br />a III
<br />I
<br />I
<br />1:1
<br />1'-6" MIN.
<br />TRENCHES AT FOOTINGS
<br />P/BC 2023-004
<br />0 PER. M f RECOMMENDATION
<br />24" MIN. ao
<br />LISTED CAP v 0 0
<br />IY F
<br />OLL
<br />ROOF SLOPE:
<br />FLAT TO 6:12
<br />SEE LA MECHANICAL CODE SEC. 802.6
<br />FOR ROOF SLOPE STEEPER THAN 6:12
<br />THE FOLLOWING WINDOW SIZES WILL BE THE MINIMUM ALLOWED FOR 5.0 SF
<br />SINGLE CASEMENT: 2.4 X 4-0. SLIDER:
<br />DOUBLE CASEMENT: 4-B X 4.0 5-0%3.6
<br />CASEMENT( FOXED COMBO: 7-0 X 4-0 SINGLET DOUBLE HUNG. 6-0 X 3-0
<br />OTHER WINDOW TYPES. 30 X 5-0. 3-0 %54i .3> X M. SLIDER? FIXED COMBO:
<br />AWNING 8BAY W!FIXED CENTER 3.8X5-0. 4-0X5-0 lf0X4-0
<br />NONE W!O MANDATA SINGLET FIXED COMBO: NONE W!O IN X4.0
<br />MANUF. DATA 12.0 X 3-0
<br />NOTE: SIZES ARE TAKEN FROM DATA SUPPLIED BY
<br />WINDOW MANUFACTURERS. HOWEVER, THESE ARE
<br />GENERAL DIMENSIONS AND MUST BE VERIFIED WITH
<br />ACTUAL WINDOWS INSTALLED TO MEET MINIMUM
<br />EGRESS REQUIREMENTS.
<br />GIRDER (R317.1 I R602.6)
<br />V2' MIN. CLEAR ON TOPS,
<br />SIDES AND ENDS
<br />CONC. FOUND. WALL
<br />FLOOR GIRDER
<br />r P.T. SILL
<br />3" MIN. BEARING
<br />As a covered entity under Title II of the Americans with Disabilities Act, the City of Los Angeles does not discriminate on the basis of disability and, upon request,
<br />will provide reasonable accommodation to ensure equal access to Its programs, services and activities.
<br />Page 8 of 9
<br />AAME //Ved
<br />J . r ��
<br />� A CE
<br />2'11JILDERS INC
<br />core niercial* multifamily III r-eside nt i a i
<br />N • N •.A ✓ %" ■ ■ v .
<br />-,THIS DESIGN AND DRAWINGS, ARE
<br />HT PROTECTED AND ARE
<br />TH EXCLUSIVE PROPERTY OF J&C BUILDERS INC,
<br />THEY SHALL BE
<br />NO USED, MODIFIED DUPLICATED IN
<br />ASSIGNED TO A THIRD PARTY WITHOUT
<br />THE WRITTEN AUTHORIZATION
<br />OF J&C BUILDERS INC.
<br />CONSULTANTS
<br />OWNER
<br />Juan Silva
<br />949-232-3265
<br />CONTACT PERSON
<br />Jose Zambrano
<br />1117 SANTA FE AVE. #100
<br />LONG BEACH CA 90813
<br />MOBILE: 562 522 3549
<br />EMAIL: info@jchomebuilders.net
<br />DESIGNER
<br />J&C BUILDERS INC
<br />1117 SANTA FE AVE. #100
<br />LONG BEACH CA 90813
<br />MOBILE: 562 522 3549
<br />EMAIL: info@jchomebuilders.net
<br />T-24
<br />No. Description Date
<br />APPROVAL STAMP
<br />Convert 360 ft2 garage
<br />+ 150 ft2 Add for a total
<br />of 510 ft2 A D U
<br />909 S Pacific Ave,
<br />Santa Ana, CA 92703
<br />WFPP SHEETS
<br />Project number
<br />j 0001
<br />Date 02-13-2025
<br />Drawn by AC Builders
<br />Checked by
<br />02-S-03
<br />
|