1. TWO 2X MEMBERS MAY BE SUBSTITUTED FOR ONE 4X HORIZONTAL FRAMING
MEMBER.
Alternate patio designs may be possible when provided with an
engineered analysis. Use of this conventional standard design is
at the user’s risk and carries no implied or inferred guarantee
against failure or defects.
2. LAG BOLTS MUST FULLY ENGAGE A WOOD STUD OR RIM JOIST AND BE PROVIDED
WITH APPROPRIATE WASHERS. LAG BOLTS SHALL BE LOCATED A MINIMUM OF 1-½”
FROM THE TOP OR BOTTOM OF THE LEDGER.
4. SEE PAGE 2 OF 2 FOR CONSTRUCTION DETAILS.
RAFTER SPACING:
SEE TABLE “A”
TABLE "B"
HEADER SIZE & SPANS
(DOUGLAS FIR #2 OR BETTER)
TABLE "A"
RAFTER SPANS
(DOUGLAS FIR #2 OR BETTER)
TABLE "C"
FOOTING SIZE
TABLE "D"
LEDGER
BOLTING
18" SQ. X 12" DEEP
18" SQ. X 12" DEEP
18" SQ. X 12" DEEP
18" SQ. X 12" DEEP
12" O.C. 9' -10"
16" O.C. 8' - 11"
24" O.C. 7' - 8"
32" O.C.
*6' - 3"
1/2" DIA. X 5"
LONG AT 16"
O.C. STAGGERED
(2) 3/8" DIA X 5"
LONG AT 16"
O.C.
8'-0" MAX 4 x 6
10'-0" MAX 4 x 8
12'-0" MAX 4 x 10
14'-0" MAX 4 x 12
8'-0" MAX 4 x 8
10'-0" MAX 4 x 10
12'-0" MAX 4 x 12
14'-0" MAX 4 x 14
24" SQ. X 12" DEEP
24" SQ. X 12" DEEP
24" SQ. X 12" DEEP
24" SQ. X 12" DEEP
12" O.C. 15' - 4"
16" O.C. 13' - 9"
24" O.C. 11' - 3"
32" O.C.
*9' - 7"
12" O.C. 20' - 0"
16" O.C. 18' - 2"
24" O.C. 14' - 10"
32" O.C.
*12' - 8"
12" O.C. 20' - 0"
16" O.C. 20' - 0"
24" O.C. 18' - 11"
32" O.C. *16' - 2"
24" O.C. 10' - 0"
32" O.C.
*9' - 3"
48" O.C.
*7' - 8"
24" O.C. 15' - 11"
32" O.C.
*13' - 9"
48" O.C.
*11' - 3"
24" O.C. 20' - 0"
32" O.C.
*18' - 2"
48" O.C.
*14' - 10"
2X2 OR 2X4 @3" O.C. MIN. SPACING
LATTICE OR
½” nominal PLYWOOD
WITH BUILT-UP OR ROLL ROOFING
SIMPSON (OR EQUAL)
POST CAPS OR
"T" STRAP EACH SIDE
½” DIA. THRU BOLTS
OR 16d NAILS
2X SOLID BLOCKING REQUIRED FOR
ALL SOLID PATIO COVERS W/ MIN (3)
16d TOENAILS TO HEADER, OR A-34
OR EQUAL FRAMING ANGLES
24"
MAX.
OVERHANG
KNEE BRACE:
SEE FRAMING
DETAILS (PG. 2)
HEADER SPAN & SIZE:
SEE TABLE “B”
CLEARANCE:
6' - 8" MIN.
8' - 0" MAX.
RAFTER SPAN & SIZE SEE TABLE "A"
EXISTING WOOD
STUD WALL
ROOF SLOPE: ¼" PER FOOT MIN.
3 ½" CONCRETE
SLAB TYPICAL
24"
MAX.
OVERHANG
SLOPE
SIMPSON H2 (OR EQUAL)
HURRICANE CLIPS @ 48" O.C.
EDGE NAIL PLYWOOD W/ 8d
NAILS @ 6" O.C. (Standard 6" /
12" nailing elsewhere)
Typical
4x4 Posts
min
4X4 POST
1" STANDOFF BETWEEN
CONCRETE AND WOOD
POST
COLUMN BASE -USE
SIMPSON CBSQ, PBS
OR EQUAL W/BOLTS/
SCREWS/NAILS PER
MFG. SPECS.
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5. ARTIFICIAL LIGHTING IS REQUIRED IN ROOMS THAT HAVE WINDOW OPENINGS INTO
THE COVERED PATIO AREA IF THE TOTAL WINDOW AREA IN THAT ROOM IS LESS
THAN 10% OR THE FLOOR AREA OF THE ROOM OR 20 SQUARE FEET, WHICHEVER
IS GREATER.
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1
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3. NOT DESIGNED TO BE ENCLOSED OR FREESTANDING - ADDITIONAL ENGINEERING
ANALYSIS WILL BE REQUIRED.
City of San Dimas
Building & Safety
245 E Bonita Avenue
San Dimas, CA 91773