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Permit Number:AA-61-7----01 --CX")11-- P.-..., '
Address:If '--. ;Cti C.LO( r) - 29 "11;17
By: Date:.21. -X3( ('-' CiT Y Oi- i!GARD
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Approved plans
shall be on job site
i OFFICE COPY
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•
Side view of Deck- 11580 SW Cloud Court
Railing 36"tall
Posts every 4 ft
Gap 4"
Joist 2 by 8 PIV �,.� � ti
1,d Fl Pg Irr!'41 9 rill 3
Beam 4 by 10
Post 4 by 6 Cross BracinCrossg
10 foot Bracing
4161
Rear of
House
View of Deck from Front of House - 11580 SW Cloud Court
Railing 30'
Posts every 4'
Gap 4
IMO Joist 2by8-4" gap
Beam 4 by 10
lirPost 4 by 6 - 10 foot length
11
View of Deck from Rear of House - 11580 SW Cloud Court
Railing 36"
post every 4 ft
Gap 4"
Joist 2 by 8
I Beam 4 by 10
Post 4 by 6
10ft
Optional overhang
\Beam splices at
B A p
interior post
4 C locations only
/ D
:—6" min
— — — — — — — — — —
/ 2'-0" 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 inTable 1 are the minimum/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 a 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:
�-J 11
A. Joist Size: x ,spaced /44 apart.
B. Beam Size: x L
C. Post Size: 4 x ,spaced D apart.
D. Footing Size: x (b 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
TABLE 1
If you have a and you have then you and the and they can and the footings"D"
beam"B"that is: posts"C" can only minimum size be spaced a supporting the posts
supporting the span the joist iyou can maximum of: must be a minimum size
beam spaced: joists: use is: of (WxWxH):
1
4x8 or(2)2x8 6'-0"apart 6'-0" 2x6* 24"apart 13"x13"x24"deep or
14" diameter x 24"deep
4x10 or(2)2x10 8'-6" apart 6'-0" 2x6* 24"apart 15x15"x24" or _
17"diameter x 24" deep
4x12 or(2) 2x12 10'-6" apart 6'-0" 2x6* 24" apart 16"x16"x24"or
18"diameter x 24" deep
4x12 11'-9" apart 6'-0" 2x6* 24"apart 18"x18"x24" or
20" diameter x 24" deep
4x8 or(2)2x8 6'-0" apart 8'-0" 2x6*or 2x8 16" apart or 24" 14x14"x24" or
apart 16"diameter x 24" deep
4x14 or(2)2x10 8'-0"apart 8'-0" 2x6*or 2x8 16" apart or 24" 16"x16"x24"or
apart 18"diameter x 24" deep
4x12 or(2)2x12 9'-6" apart 8'-O" 2x6*or 2x8 16" apart or 24" 18"x18"x24" or
apart 20" diameter x 24" deep
4x12 10'-9" apart 8'-0" 2x6*or 2x8 16"apart or 24" 18"x18"x24"or
apart 20" diameter x 24" deep
4x8 or(2)2x8 5'-6" apart 10'-0" 2x8 or 2x10 16" apart or 24" 14"x14"x24" or
apart 16" diameter x 24" deep
4x10 or(2)2x10 7'-6"apart 10'-0" 2x8 or 2x10 16"apart or 24" 16"x16"x24"or
apart 18"diameter x 24" deep
4x12 or(2)2x12 9'-0"apart 10'-0" 2x8 or 2x10 16"apart or 24" 18"x18"x24"or
apart 20" diameter x 24" deep
4x12 10'-3" apart 10'-0" 2x8 or 2x10 16"apart or 24" 20"x20"x24"or
apart 23" diameter x 24" deep
4x6 or(2)2x8 5'-0" 12'-0" 2x10 or 2x12 16"apart or 24" 14"x14"x24" or
apart 16" diameter x 24" deep
4x8 or(2)2x10 6'-6" 12'-0" 2x10 or 2x12 16" apart or 24" 16"x16"x24" or
apart 18" diameter x 24" deep
4x12 or(2)2x12 8'-6" 12'-0" 2x10 or 2x12 16" apart or 24" 18"x18"x24" or
apart 20" diameter x 24" deep
4x12 9'-6" 12'-0" 2x10 or 2x12 16" apart or 24" 20"x20"x24" or
momapart 22" diameter x 24" deep
4x6 or(2)2x8 4'-6" 16'-0" 2x12 16" apart 15"x15"x24" or
17"diameter x 24" deep
4x8 or(2)2x10 6'-0" 16'-0" 2X12 16" apart 18"x18"x24"or
20" diameter x 24"deep
4x10 or(2) 2x12 7'-6" 16'-0" 2X12 16" apart 20"x20"x24" or
23"diameter x 24"deep
4x12 9'-0" 16'-0" 2x12 16" apart 22"x22"x24" or
25" diameter x 24" deep
*2x6 joists cannot be used where a guardrail is required.
6 • DECK DESIGN GUIDE
•
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
on the house,so there is less opportunitiy for —�
water to get into the wall structure. r�--' ll
Freestanding decks may use precast ���"
footing pads set 12" below the surface ,� iiiiii
ist
of the ground on firm,undisturbed Rim ,,�/ 4III
overhang
native soil.
joistII �:
Freestanding decks require an addition- Joist
al beam, posts and footings, instead of Grade r �/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.
....1 L. _I I— omminfolli
r m1.1.1.1.1. .1.1.1.1.1.
1 F
• • • i.
•
maramilirm
• • •
•
• (1)3/8"dia.through bolt . • /
'
at each connection 2X6 cross brace
Nio.
• X
f6
E
4
0
• • •
A
f
—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 5_8'
AFig.f5:Diagonal bracing
DECK DESIGN GUIDE • 11