2.
The handrail must be attached to a stair guard or exterior wall acting as a barrier as shown in Figure 33.
3.
The handrail and connecting hardware must be decay- and corrosion-resistant.
4.
The handrail must have a smooth surface with no sharp corners and must be graspable, as shown in Figure 34. Recessed sections may be shaped from a 2”x6” or five-quarter board, as shown there.
5.
Handrails must run continuously from a point directly over the lowest riser to a point directly over the highest riser.
6.
Handrails may be interrupted by guard posts.
Figure 33
Figure 34
Spiral stairs. Stair dimensions above are for standard stairs secured in accordance with methods shown in this appendix. Spiral stairs are allowed at decks when designed in accordance with the provisions of Chapter SPS 321.04. Connection of spiral stairs to decks and the supporting load path shall be designed in accordance with accepted engineering practices and with applicable provisions of the Uniform Dwelling Code.
SECTION 15: FRAMING PLAN
A typical framing plan shows a bird's-eye or plan view of the joist and beam layout; the location of the ledger board, diagonal bracing or hold-down devices, posts, and footings; and the type, size, and spacing of the ledger board fasteners. You can use the sample typical deck framing plan shown on the next page in combination with the requirements in this document to complete your deck.
Figure 35
TYPICAL DECK FRAMING PLAN
Decking: ⍽ 2x4
⍽ 2x6 ⍽ five-quarter board ⍽ wood-plastic composite (per ASTM D 7032)
⍽ Other decking, evaluation report number:
Joists: size: ⍽ 2x6
⍽ 2x8 ⍽ 2x10 ⍽ 2x12 spacing: ⍽ 12 in. ⍽ 16 in.
⍽ 24 in.
joist span dimension: ft. -
in.
overhang: ⍽ Yes ⍽ No overhang dimension: ft. - in.
rim joist: ⍽ 2x6 ⍽ 2x8
⍽ 2x10 ⍽ 2x12
Beam(s): number of plies: ⍽ 2 ⍽ 3 size: ⍽ 2x6 ⍽ 2x8 ⍽ 2x10 ⍽ 2x12
overhang: ⍽ Yes ⍽ No overhang dimension: ft. - in.
Posts: size: ⍽ 4x4
⍽ 4x6 ⍽ 6x6 height:
ft. - in.
Footings: size: in.
⍽ square ⍽ round thickness: in.
Ledger: ledger board size: ⍽ 2x8 ⍽ 2x10 ⍽ 2x12 ⍽ Not applicable (free-standing deck)
fastener: ⍽ Through bolt ⍽ Lag screw ⍽ Wood screw
⍽ Expansion anchor ⍽ Adhesive anchor
Lateral support: ⍽ Tension-tie
⍽ Diagonal bracing, size: ⍽ 2x
(not permitted for free-standing deck)
Deck size: L= ft. - in. W=
ft. - in.
