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OR ®F O THER ORDINANCES F THIS �
JUMS" DICTION.
1
VIWO `
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Directions
1. Pill in the blanks on pages 2 and 3 with dimensions
and materials which will be used to build the
structure. Please print legibly.
2. Indicate in the check box which• detail from page 3 will be used. ,
Size and Amount of Lags
t °
(example: Two "x 12'1ags @ 16 "O.C.) r X
Type of decking
(example: I x4 or 2 x 6 -Trex) rr
Odc
Existing bldg. 36" high guard 06c
5 with balusters aced "apart
spaced so that a ';_ (example: x "spaced 24 "apart)
4 Inch diameter
sphere cannot 6�
Approved pass through
` flashing
Beam splices to occur over X bea Be
° required posts with 1 1 /2" bearing "` ��
y �.• . (example: (2) 2 X 10 -see detail B) �
Attach decking with non corrosive fasteners : B
2x rim joist
'� �; '•.�� .' (example :2x10 -see Alternate S1 62)
y' C
❑ Detail B X osts
❑ Alternate Detail 61
❑ Alternate Detail 132 v spaced apart
! Detail A (see page 3) _ (example: 4 x 4 pos s spaced 8'spartt)
(seepage 3) IL
Conditions such as attachment to p an
cantilevers or veneers. may require S (exam
Engineer's approval co
San
Type f " jug (existing)
, I
Detail C r
(see page 3) � ,
V
Finished grade
�' �S f•� F ►♦ tf Y�f •' I::
Note: Emergency escape windows are allowed to
be installed under decks and porches provided the y ; , • , ; ,yet
location of the deck allows the emergency escape u
window to be fully opened and provides a path not
'
less than 36" in height to a yard or court. 6'8" required _ , : ;
;.
for walkout basements or patios. >..:;•:.;. �•
Note: A plot plan dimensions of your project or additions and its relationships to existing buildings or
structure e property must be Included. n a to project dimensions, your plot plan must also show other details such
asp ocations and spacing, joist other pertinent information not shown on the section drawing.
a
' Si " Wicant Changes to the IRC 2009 Edition R502.2.2.1 AND TABLE R502.2.2.1 Deck Ledger' Connection 127
O l "TABLE R502.2.2.1 Fastener Spacing £or a Southern Pine or Hem -Fir Deck Ledger and a 2 -Inch Nominal
`SoU -gown Spruce -Pine -Fir Band Joist
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Dk Live Load = 40 s£ Deck Dead Loa = 10 s
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4 - 6' -0" and 6' -1" to 8' -1" to 10' -1" to 12' -1" to 14' -1" to 16' -1" to
V oist S an
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,,• Less 8' -0" 10'•0" 12'•0" 14'-0" 16' -0" 18' -0"
7- °Connection Details On- Center Spacing of Fastenersd. e
,, diameter la screw with 30 33 18 16 13 11 10
•1 /z • - g
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� 15/32 „ maximum. sheathing
1 „
P /a - diametei bolt with 15/32” 36 36 34 29 24 31 19
z�: 1 maximum sheathing
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h - diameter bolt with 15132 36 36 29 24 31 18 16
maximum sheathing and /z”
-1+ b - -
h
K s, stacked washers
3
For SI 1 inch — 25 .4, m
1 foot = 304 8 m 1 pound per square foot = 0.0 kPa._
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e a. The The tip of the lag screw shall fully extend beyond the inside face of the band j oist.
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: b. maxi mum. gap between the face of the ledger board 'and face of the wal l sheathing shall be "_
_
i. �, c. Ledgeis shall be flashed to prevent water from contacting the house band joist.
�NF� d . Lae screws and bolts shall be staggered in accordance with Section R502.2.2.1.1.
Deck le dger shallbe minimum 2 X 8pressure - preservative- freatedNo. Z grade lumber or other approved materials as established by standard
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���r �ngi_,�eeringpractice.
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f. When solid s awn pressure preservative treated deck ledgers are attached to a m;,,;mum 1 inch thick engineered wood product (structux
—
ra`Z co mposite lumber, laminated veneer lumber, or wood structural panel band joist) the ledger attachment sh all be designed in accordance with
accepted engineering practice.
g. A minim 1 by 9 /2 Douglas Fir laminated veneer lumber iimboard shall be permitted in lieu of the 2 -inch nominal band joist.
,aav, i
h Wood structural p anel sheathing, gypsum board sheathing or foam sheathing not exceeding 1 inch in thickness shall be permitted. The maxi-
``. '
Y l 1 r� mum distance between the face of the ledger board and the face of the band igist shall be 1 inch.
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k ; 3502 2 2 1 1 Placement of Lag Screws or Bolts in Deck
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. "," Ledgers. The lag screws or bolts shall be placed 2 inches (51 mm) in
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pyr 1 from the bottom or top of the deck ledgers and between 2 and 5 inches
_ { and 127 mm) in from the ends The la screws or bolts shall be
'tea q... g
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stag g ered from the to to the bottom along the horizontal run of the j
�. gg p g
r; deck ledger,
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R502.2.2.2 Alternate Deck Ledger Connections. Deck ledger
=7 connections not conforming to Table R502. 2.2.1 shall be. designed in
accordance with accepted engineering practice Girders • supporten
deck joists shall not be supported on deck ledgers or band joists. Deck
ledgers shall not be supported on stone or masonry veneer.
s: R502.2.2.3 Deck Lateral Load Connection. The lateral load
connection required by Section R502 2 2 shall be permitted to be in
}.
accordance with Figure R502. Hold -down tension devices shall �
be provided in not less than two locations per deck and each de-
s = > vice shall have an allowable stress design capacity of not less than
tj 1500 pounds (6672 N).
CHANGE SIGNIFICANCE: In the 2006 IRC, floor construction must
be capable of accommodating all loads, and the deck provisions of
3 t Section R502.2,2 require positive connection to the primary struc-
ture to resist both vertical and lateral loads. Other than those perfor-
mance requirements and the mention that nails subject to withdrawal
were not satisfactory for the connection, the 2006 IRC contained no ;.: ng
. ° Ka,. tom:
-te r' R502.2.2.1 and Table R502.2.2.1 continues
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New or existing Open guardrails on decks more than 30 inches above grade or a floor below shall
light required have members spaced so that a 4 inch diameter'sphere cannot pass through.
Stairway Notes:.
Guardrail 1. Stairways'shall be not less than 36" in width.
Openings for required 2, Stairway rises shall be not greater than 7 314 ".
guards on the sides 3, Stairway treads shall have a minimum run of 10 ".
of stair treads shall 4. The length of Run and the height of Riser shall not
not allow a 4 3/8" vary more than 318" in the entire run of the stair.
diameter sphere to 5. Stairs are required to be illuminated.
36" min. pass through. 6. Open risers permitted if opening is less than 4 ".
height 7. A nosing not less than 314" but not more than 1 1/4"
shall be provided on stairways with solid risers, and
less than 11". r
8. composite materials (example:Trex) may require 4
stringers
i
Deck 34 -38" above
Less than nosings
6" dia. Handrail (see details below)
1 i
Guardrail required if 10" min. run
more than 30" from nosing
to nosing Landing same
Open risers 36" min. width as stairs
less than 4"
7 314" max, rise Finished grade
Handrail Notes:
1. Handrails shall be continuous orti at Icast one side of stairs with 4 or more risers..
2. Top of the hRndrails shall be placed not less than 34 inches nor more than 38 inches above stair nosings.
3. The handgrip portion of handrails shall be not less than 1-114 Inches nor more than 2114 inches in cross section for non cirol.dar handrails,
4. Handrails shall be placed not less than 1 -112 Inches from any wall or other surface.
6. Handrails to be returned to wall, post or safety terminal (per 311.5.6.2 IRG)
� •/ / ale ,
Type II Typal
,{ 1 1 /a' - 2 max. 1 - min.
3 14"
13/d 1 1 /a" - 2" Gripable
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- Wall or other surface
1
-W' min. �—
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i
BUILDING PLANNING
finish surface of ramp slope, shall be not less than 34 R311.7.8 Illumination. All stairs shall be provided with
inches (864 mm) and not more than 38 inches (965 mm). illumination in accordance with Section R303.6.
Exceptions: R311.7.9 Special stairways. Spiral stairways and bulkhead
1. The use of a volute, turnout or starting easing enclosure stairways shall comply with all requirements of
shall be allowed over the lowest tread, Section R311.7 except as specified below.
2. When handrail fittings or bendings are used to R311.7.91 Spiral stairways. Spiral stairways are per -
provide continuous transition between flights, mitted, provided the minimum clear width at and below j
the transition from handrail to guardrail, or the handrail shall be 26 inches (660 mm) with each tread
used at the start of a flight, the handrail height at having a 7 (190 mm) minimum tread depth at 12
the fittings or bendings shall be permitted to inches (914 mm) from the narrower edge. All treads shall
exceed the maximum height. be identical, and the rise shall be no more than 9 1 / 2 inches
R311.7.7.2 Continuity. Handrails for stairways shall be (241 mm). A minimum headroom of 6 feet 6 inches
continuous for the full length of the flight, from a point (1982 mm) shall be provided.
directly above the top riser of the flight to a point directly
above the lowest riser of the flight. Handrail ends shall be R311.7.9.2 Bulkhead enclosure stairways. Stairways
returned or shall terminate in newel posts or safety termi- serving bulkhead enclosures, not part of the required
nals. Handrails adjacent to a wall shall have a space of not building egress, providing access from the outside grade
less than 1 / inch (38 mm) between the wall and the level to the basement shall be exempt from the require-
handrails.
ments of Sections R311.3 and R311.7 where the maxi -
mum height from the basement finished floor level to
Exceptions: grade adjacent to the stairway does not exceed 8 feet
1. Handrails shall be permitted to be interrupted (2438 mm) and the grade level opening to the stairway is
by a newel post at the turn. covered by a bulkhead enclosure with hinged doors or
2. The use of a volute, turnout, starting easing or other approved means.
starting newel shall be allowed over the lowest R311.8 Ramps.
- - tread.
R311.7.7.3 Grip -size. All required handrails shall be of R311.8.1 Maximum slope. Ramps shall have a maximum
one of the following types or provide equivalent slope of 1 unit vertical in 12 units horizontal (8.3 percent
graspability. slope).
1. Type I. Handrails with a circular cross section Exception: Where it is technically infeasible to comply
shall have an outside diameter of at least 1 1 / 4 inches because of site constraints, ramps may have a maximum
(32 mm) and not greater than 2 inches (51 mm). If slope of one unit vertical in eight horizontal (12.5 percent
the handrail is not circular, it shall have a perimeter slope).
dimension of at least 4 inches (102 mm) and not
greater than 6 1 / 4 inches (160 mm) with a maximum R311.8.2 Landings required. A minimum 3- foot -by -3 -foot
cross section of dimension of 2 I/4 inches (57 mm). ( 914 mm by 914 mm) landing shall be provided:
Edges shall have a minimum radius of 0.01 inch 1. At the top and bottom of ramps.
(0.25 mm).
2. Where doors open onto ramps.
2. Type II. Handrails with a perimeter greater th n
6 1 / 4 inches (160 mm) shall have a graspable fine ? 3. Where ramps change direction.
recess area on both sides of the profile. The finger Rf11.8.3 Handrails required. Handrails shall be provided
recess shall begin within a distance of 3 /4 inch (19 on at least one side of all ramps exceeding a slope of one unit
mm) measured vertically from the tallest portion vertical in 12 units horizontal (8.33- percent slope).
of the profile and achieve a depth of at least 5 /16
inch (8 mm) within 7 / 8 inch (22 mm) below the R311.8.3.1 Height. Handrail height, measured above the
widest portion of the profile. This required depth finished surface of the ramp slope, shall be not less than 34
shall continue for at least 3/B inch (10 mm) to a level inches (864 mm) and not more than 38 inches (965 mm).
that is not less than 1 3 / 4 inches (45 mm) below the
tallest portion of the profile. The minimum width R311.8.3.2 Grip size. Handrails on ramps shall comply .
of the handrail above the recess shall be 1 1 / 4 inches with Section R311.7.7.3.
(32 mm) to a maximum of 2 3 / 4 inches (70 mm). R311.8.3.3 Continuity. Handrails where required on
Edges shall have a minimum radius of 0.01 inch ramps shall be continuous for the full length of the ramp.
(0.25 mm). Handrail ends shall be returned or shall terminate in
R311.7.7.4 Exterior wood/plastic composite hand- newel posts or safety terminals. Handrails adjacent to a
rails. Wood /plastic composite handrails shall comply wall shall have a space of not less than 1 1 / 2 inches (38
with the provisions of Section R317.4. mm) between the wall and the handrails.
F.
2009 INTERNATIONAL RESIDENTIAL CODE 61