# A freestanding 8' x 8' deck on four posts. Example only: every load
# below must come from YOUR building department, not from this file.
materials: { lumber: southern-pine@l6, hardware: simpson@c22 }   # 2by's libraries this is written for

project:
  slug: small-deck
  title: Small Deck 8x8
  revision: r1
  date: 2026-10-12
  format: 1
  live_psf: 40            # example value: ask your building department
  dead_psf: 10            # example value: framing and decking
  allowable_psf: 1500     # example value: soil bearing, from your local code
  deck_top_ft: 2'-6"      # top of the joists above grade

phases:
  - id: p1
    name: Deck

# x runs east, y runs south, both in feet from the north-west corner.
posts:
  - id: P1
    at: [0, 0]
    size: 6x6
    phase: p1
  - id: P2
    at: [8, 0]
    size: 6x6
    phase: p1
  - id: P3
    at: [0, 8]
    size: 6x6
    phase: p1
  - id: P4
    at: [8, 8]
    size: 6x6
    phase: p1

# The joists sit ON the beams (framing: drop), so each beam tops out one
# joist depth below the deck: 2'-6" less a 2x8's 7-1/4" is 1'-10-3/4".
beams:
  - id: B-N
    label: North beam
    axis: x
    supports: [P1, P2]
    section: 2x12
    trib_ft: 4              # half the 8' joist span it carries
    top_ft: 1'-10-3/4"
    phase: p1
  - id: B-S
    label: South beam
    axis: x
    supports: [P3, P4]
    section: 2x12
    trib_ft: 4              # half the 8' joist span it carries
    top_ft: 1'-10-3/4"
    phase: p1

connections:
  - at: P1
    member: B-N
    type: notch
  - at: P2
    member: B-N
    type: notch
  - at: P3
    member: B-S
    type: notch
  - at: P4
    member: B-S
    type: notch

joist_fields:
  - id: J1
    label: Deck joists
    section: 2x8
    span_axis: y
    bounds_x: [0, 8]
    bounds_y: [0, 8]
    bears_on: [B-N, B-S]
    spacing_in: 16
    framing: drop
    blocking: true
    phase: p1