Plans (39) KITCHEN
16'-4"
T.
ii INDICATES APPROX. STTAAIRSETO GROUND 4
LOCATION OF NEUJ
TREATED 4x4 POSTS
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In STAIRS TO GROUND
APPROX.5-1/2 Pt
ABOVE GRAD
(157S- 50) ovci- 16-3 3/4" - a 7'-8 5/8"
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UPPER DECK AREA = 800 SOFT. = 1,684 LINFT. 2x6
0 , f 1 LOWER DECK AREA = 66 SQFT. = 144 LINFT. 2x6
TOTAL = 934 SOFT. = 1,984 LINFT. 2x6
MEM
I 2x8 P.T. JOISTS 16" OC: QTY 16 fl 16'-O" = 256 LINFT
1M1\1 , ' i I) ‘5 : QTY 14 �, 24'-0" = 336 LINFT
: OTY 6 B 8'-0" = 48 LINFT
TOTAL 2x8 P.T.JOISTS = 640 LINFT.
Thi Iv
or CATI-II 'S DECK REFAIR F OJ CT
11515 SUJ CLOUD OFFICE COPY UD CT.+ TIC ARD, OR 9 12 2 4
05/13/13 SCALE: 3/1611=11-0" (PLOTTED 11"x1"1")
freestanding Decks
Decks that are free-standing do not utilize the exterior wall of the Rim joist
existing house to support vertical or lateral loads.
Freestanding decks allow the exterior siding to remain
44NSI%% ,,, ---
on the house, so there is less opportunitiy for
water to get into the wall structure. --=��
Freestanding decks may use precast --...,
footing pads set 12" below the surface '' r I
of the ground on firm, undisturbed ,' *SII Joist
native soil. Rim ,
' overhang
joist 0 �:�
Freestanding decks require an addition- Joist
al beam, posts and footings, instead of Grade • �i
1111S.'
a ledger board attached to the house. . , �)
A Fig. 14:Freestanding deck
Lateral Support
Decks more than 30 inches above grade must resist lateral forces (wind and earthquake) with diagonal cross brac-
ing as shown in Figure 15. Bracing shall be located between posts parallel to beams and bolted with a 3/8" diameter
through-bolt at each end to the posts as shown. Diagonal bracing shall also be located perpendicular to beams. Bracing
is required in every other bay between posts for decks with joist spans up to 8 feet, and in every bay for decks with joist
spans greater than 8 feet. If the deck is free-standing, diagonal bracing must be provided on all the posts and in both
directions.
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• (1)3/8"dia.through bolt • • 0000,
at each connection 2X6 cross brace
• •
X
W
4
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_Solid block at intersection of wood Bracing required every bay for deck with joist spans>8'
braces with (1)3/8"dia. through bolt(typ) Bracing required alternate bays with joist spans_.8'
A Fig.15:Diagonal bracing
DECK DESIGN GUIDE • 11
Optional overhang
4B q Beam splices at
interior post
locations only
D
6" min
- -' — - - J - - - -J
2'-O" max. ` Beam span / Beam span
overhang (Min. span = 6'-O" with overhang)
AFig.3:Beam span
Table 1 provides you with the information to determine the minimum sizes of the footings, beams, and joists.The sizes
will depend on how big the deck will be and how many footings and posts are going to be used; how far the beam(s)
will span from post to post, or post to ledger; and how far the joist will span from beam to beam,or beam to ledger.
Note:The sizes, spans and spacing of the joists in Table 1 are the minimym/maximum allowed by code. If you want
your deck to be stiffer, increase the size, reduce the span, or reduce the spacing of your joists.
Note:The footings must bear on native soil.The footing details require o footing that is a minimum of 24 inches in
height so the bottom can be located a minimum of 18 inches below the finished grade and extend six inches above the
finished grade. If you have fill material that is greater than 18 inches deep,your footing will need to extend through the
fill to native soil. Footings for freestanding decks (those not attached to the house) are not required to be located 18
inches below the finished grade and can have a minimum thickness of eight inches.
Post sizes are 4x4 minimum for decks six feet or less above the ground and 4x6 for decks over six feet above the
ground. Use a minimum 4x6 post under all beam splices.
Mark the sizes,spacing and spans for the footings, beams,joists, and posts from Table 1 in the space provided below:
u a
A. Joist Size: Z. x , spaced tb apart.
B. Beam Size: x
C. Post Size: x , spaced 8 apart.
D. Footing Size: x x
Transfer your footings, beams,joists, and posts information above into the Deck Framing Plan at the end of this Guide
DECK DESIGN GUIDE • 5
Exterior sheathing 11 Continuous flashing
(15/32" max) (See Fig. 5)
Existing wall
Existing 2X rim (band) Decking over
I deck joist
Ill %/ r %/!/
--.... )11k:
Joist Span Spacing 2X floor joist im .
0< span < 8' 36" 2X ledger with 1/2" dia. bolts
8'< span_< 10' 34" Existing wall framing .. staggered at spacing"S".
10'<span < 14' 24" or concrete wall______ ( Locate first bolt 2" from end
14'<span <_16' 21" (shown dashed) of ledger
From table R502.2.2.1 of 2011 ORSC.
A Fig.6:Attachment of Ledger Board to Band Board with Thru-Bolts
(See Fig. 12 for spacing and clearances)
Exterior sheathin 1
9 Remove siding at ledger
min. thickness = 3/5" ! location prior to installation
1\ Continuous flashing
(See Fig. 5)
Existing wall stud i
el/• ../ //A177//liU//Z A7////A////J
IA 1" min.
Fasteners at 16" O.C.
per table
2X ledger
Required fasteners Joist span-♦-
Joist Span a teners to each
stud or 16 inches o.c.max.
0<span_<8' (3)#10 x 5" wood screws
8'<span_< 10' (4)#10 x 5" wood screws i ---1,----
10`<span< 14' (5)#10 x 5" wood screws A Fig. 7:Attachment of Ledger Board to Wall Studs with Screws
14'<span< 16' (6)#10 x 5" wood screws
8 • DECK DESIGN GUIDE