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Roof Framing Drawings

8:12 mono-pitch · 2×8 rafters @ 16" OC · 18 rafters along 22'

Roof Framing Plan — Top View

ROOF EDGE (WITH OVERHANGS) BACK WALL LEDGER — 2×8×12' FRONT WALL DOUBLE TOP PLATE FASCIA 2×6 2×8 RAFTERS @ 16" OC (18 TOTAL) ▼ slope down to back wall H2.5A TIE (BOTH ENDS) 22' - 0" 16" 6' - 0" 6" 8"
Rafters: 2×8×10' cut to 8' (7'2½" span + 8" front overhang tail) · 18 rafters @ 16" OC · End rafters flush with end walls; OSB overhang extends 6" each side · Fascia: 2×6×8' at front eave (×3 boards for 22' + overhang returns) · Ledger: 2×8×12' bolted to back wall top plate with ½"×4" lag screws @ 16" · H2.5A hurricane ties at every rafter — both ends

Rafter Detail — Side View (8:12 Pitch)

GRADE DBL TOP PLATE BACK WALL 10' - 0" LEDGER 2×8 FRONT WALL 14' - 0" 2×8 RAFTER SEAT CUT FASCIA 2×6 H2.5A TIE 6' - 0" RUN 4' - 0" RISE 8" 12 8 8:12 Rafter length: 7' 2½" (span) + 9.6" (tail) = ≈ 8' 0" · Cut from 2×8×10'
Seat cut (bird's mouth) at back wall ledger — notch rafter to bear flat on ledger · Plumb cut at front wall (vertical) and at tail end (for fascia) · Cut angle: 33.7° (8:12) · Test fit one rafter first before cutting all 18 · H2.5A hurricane ties at front wall plate and back ledger