Georgia Amendments Prescriptive Deck Details - Stair Stringer Requirements

05/23/12 Georgia Amendments- Prescriptive Deck Details Sheet 17 of 22
FIGURE 32: TREAD AND RISER DETAIL
Stair Stringers
Stringers shall be constructed in accordance with the following requirements.
• Stringers shall be continuous sawn or solid 2x12s meeting the stair geometry requirements shown
in FIGURE 32.
• Attach stringers to the deck per FIGURE 34.
• Stringers shall be spaced at a maximum of 18" on center.
• Measured horizontally, the maximum horizontal stringer spans shall not exceed the lengths shown
in FIGURE 33.
• Stringers with spans greater than maximum allowed shall be supported with 4x4 posts along their
length to create multiple compliant spans. The 4x4 post shall be notched and bolted to the stringer
with (2)
1
/
2
" diameter through-bolts with washers per FIGURE 11, Option 1. The post shall be
centered on a 10" diameter or 8" square, 4" thick footing 12" below grade and be attached per
FIGURE 12.
• Intermediate landings may also be provided to shorten the stringer span; see
Stair Landings on
Sheet 18.
FIGURE 33: STAIR STRINGER REQUIREMENTS