Georgia Amendments Prescriptive Deck Details - Prohibited Ledger Attachments; Ledger Board Fasteners

05/23/12 Georgia Amendments- Prescriptive Deck Details Sheet 11 of 22
PROHIBITED LEDGER ATTACHMENTS
The ledger board attachment conditions shown
FIGURE 17 through FIGURE 19 below are strictly prohibited. In such cases the deck shall be free-
standing. See FREE-STANDING DECKS on Sheet 14.
house floor
trusses
deck
joist
FIGURE 17: FLOOR TRUSSES
joist
deck
brick
veneer or
masonry
chimney
FIGURE 18: BRICK VENEER
overhang
or bay
window
FIGURE 19: HOUSE OVERHANG
LEDGER BOARD FASTENERS
Ledger board fasteners shall be installed in accordance with FIGURE 20 and the on center spacing in
TABLE 4. Only those fastener types noted herein are approved for use. Adequacy of connections will be
verified by county inspectors.
typical
spacing
interior fasteners;
2 rows staggered
1
NO LEAD ANCHORS
5
1
2
" min. for 2x8
6
1
2
" min. for 2x10
7
1
2
" min. for 2x12
4 fasteners, each
end of ledger board
2"
2" min. sides, top
& bottom edges
2"
FIGURE 20: LEDGER BOARD FASTENER SPACING AND CLEARANCES
1
Additional interior fasteners are required at chimney or bay window; see FIGURE 21.
TABLE 4: LEDGER BOARD FASTENER SPACING, ON CENTER
Joist Span
≤6'
>6'-8'
>8'-10'
>10'-12'
>12'-14'
>14'-16'
>16'-18'
Fastener
Band Board
Through Bolts EWP
1
24" 18" 14" 12" 10" 9" 8"
2x lumber 36" 36" 34" 29" 24" 21" 19"
1
EWP = 1" minimum manufactured engineered wood product; see Sheet 9 for more information.
Through-Bolts
Through-bolts shall have a minimum diameter of
1
/
2
". Pilot holes for through-bolts shall be
17
/
32
" to
9
/
16
"
in diameter. Through-bolts must be equipped with washers at the bolt-head and nut.