Sheet S-13 · Deck or balcony
16′ × 12′ deck
- Deck
- 192sq ft · 16′ × 12′
- Footings
- 319″ × 36″ deep
- Joists
- 132×8 at 16″ o.c.
- Beam
- 2-2×103 posts, 7′ apart
Tools you need
- Tape measure (25 ft)
- Mason's line + stakes
- Chalk line
- 4-ft level
- Speed square
- Framing square
29 tools on the Sheet, each marked own, buy or rent
| Buy | Item | How we got this |
|---|---|---|
| 17 bags | Concrete mix, 80 lb80 lb bags | 3 footings: a pad 19″ across × 6″ thick at 36″ deep, then a 12″ pier up to 2″ above the ground = 3.08 cu ft each, +10% = 10.16 cu ft; 80 lb bag ≈ 0.6 cu ft (Quikrete). |
| 3 tubes | Concrete form tube12″ × 4′ | One per pier, cut to 32″ (from the pad to 2″ above the ground). |
| 3 posts | Pressure-treated 6×6 post6×6 × 8′ | 3 posts, about 1′ 4-1/2″ from the pier to the beam: deck 3′ − decking − joist − beam − 2″ of pier. Cut each one to the string line, not to a number. |
| 3 bases | Post base or anchor6×6 standoff, galvanized | One per post: holds it on the pier and off the concrete (IRC R507.4.1). |
| 3 bolts | Anchor bolt ⅝″ with nut and washer⅝″, J-bolt or wedge anchor | One per post base, set in the wet concrete (or drilled in later) per the base’s label. |
| 3 caps | Post-to-beam connector (post cap)for 6×6 and a 2-ply beam | Ties the beam to each post (IRC R507.8). |
| 2 boards | Pressure-treated 2×102×10 × 16′ | Beam 2-2×10, 16′ long: 2 plies. Posts 7′ apart, 12″ in from each end; this beam spans up to 7′ 4″ with 10′ 9″ joists (the 12 ft column (IRC Table R507.5(1))). |
| 13 boards | Pressure-treated 2×82×8 × 12′ | 13 joists 16″ on center across 16′ (12 spaces + 1), each 11′ 9″ long. 2×8 spans 10′ 9″ with a 12″ overhang (southern pine, 16″ o.c.). |
| 1 board | Pressure-treated 2×82×8 × 16′ | Rim joist across the joist ends, 16′ long, 3 screws into each joist end. |
| 1 board | Pressure-treated 2×82×8 × 16′ | Ledger 16′ long, 2×8: at least 2×8 and as deep as the joists (IRC R507.9.1). |
| 1 board | Pressure-treated 2×82×8 × 16′ | 12 blocks of 1′ 2-1/2″ between the joists over the beam: they keep the joists from rolling (DCA 6). Cut 12 × 1′ 2-1/2″ (13 a board) from 16′ boards. |
| 13 hangers | Joist hangersfor 2×8, G185 or stainless | One per joist at the ledger. At least 60% of the joist’s depth; every hole nailed. |
| 13 ties | Hurricane ties (joist to beam)galvanized | One per joist where it crosses the beam (at least 100 lb up and sideways, DCA 6). |
| 4 ties | Deck tension tie, 1,500 lb (for example Simpson DTT2Z)1,500 lb rated | Lateral load: two places within 24″ of the deck’s ends (IRC R507.9.2), each a tie on a deck joist and one on a house floor joist inside, joined through the band joist. |
| 2 rods | Threaded rod ½″ × 3 ft with nuts and washers | One per lateral-load connection, through the ledger and band joist. |
| 14 screws | Lag screws ½″ with washers (hot-dip galvanized)½″ × 4″ + washer | Every 15″ along 16′ for a 10′ 9″ joist span (IRC Table R507.9.1.3(1)), staggered top and bottom, 2″ from the edges. |
| 2 pieces | Z-flashing, 10 ft | Over the top of the ledger, 6″ laps, siding lapped over it (IRC R507.2.4). |
| 1 roll | Self-adhered flashing tape, 6″ × 75 ft | Behind the ledger and over its top: two strips 16′ long, plus the bolt holes. |
| ≈364 (4 boxes of 100) | Connector fastenershanger nails or connector screws | About 10 per hanger and tie and 12 per post base and cap — the size on each connector’s label, not deck screws. |
| ≈183 (2 boxes of 100) | Coated deck screws3″ coated | 3 per joist end into the rim, 2 per block end, and the beam’s plies in two rows every 16″ (10d nails work too). |
| 28 boards | 5/4×6 treated deck board5/4×6 × 16′ | 26 rows of 5-1/2″ boards with 1/8″ gaps across 12′ = 26 boards, +5% for culls and miscuts. |
| ≈676 screws (7 boxes of 100) | Coated deck screws2½″ coated | 2 per board at every joist (DCA 6): ≈338 crossings. |
Sheet S-13 · Deck or balcony
4.88 m × 3.66 m deck
- Deck
- 17.8m² · 4.88 m × 3.66 m
- Footings
- 2483 mm × 1.20 m deep
- Joists
- 132×8 at 406 mm o.c.
- Beam
- 3-2×122 posts, 4.27 m apart
Tools you need
- Tape measure (7.5 m)
- Mason's line + stakes
- Chalk line
- 1.2 m level
- Speed square
- Framing square
29 tools on the Sheet, each marked own, buy or rent
| Buy | Item | How we got this |
|---|---|---|
| 17 bags | Concrete mix, 30 kg30 kg bags | 2 footings: a pad 483 mm across × 152 mm thick at 1.20 m deep, then a 305 mm pier up to 51 mm above the ground = 0.11 m³ each, +10% = 0.24 m³; 30 kg bag ≈ 0.014 m³ (Sakrete). |
| 2 tubes | Concrete form tube305 mm × 1.22 m | One per pier, cut to 1.10 m (from the pad to 51 mm above the ground). |
| 2 posts | Pressure-treated 6×6 post6×6 × 2.44 m | 2 posts, about 368 mm from the pier to the beam: deck 914 mm − decking − joist − beam − 51 mm of pier. Cut each one to the string line, not to a number. |
| 2 bases | Post base or anchor6×6 standoff, galvanized | One per post: holds it on the pier and off the concrete. |
| 2 bolts | Anchor bolt 16 mm with nut and washer16 mm, J-bolt or wedge anchor | One per post base, set in the wet concrete (or drilled in later) per the base’s label. |
| 2 caps | Post-to-beam connector (post cap)for 6×6 and a 3-ply beam | Ties the beam to each post; a 3-ply beam always sits in a post cap. |
| 3 boards | Pressure-treated 2×122×12 × 4.88 m | Beam 3-2×12, 4.88 m long: 3 plies. Posts 4.27 m apart, 305 mm in from each end; this beam spans up to 4.57 m when it carries 1.94 m of joists (the 2.4 m column). |
| 13 boards | Pressure-treated 2×82×8 × 3.66 m | 13 joists 406 mm on center across 4.88 m (12 spaces + 1), each 3.58 m long. 2×8 spans 3.28 m with a 305 mm overhang (deck guide, SPF, 406 mm o.c.). |
| 1 board | Pressure-treated 2×82×8 × 4.88 m | Rim joist across the joist ends, 4.88 m long, 3 screws into each joist end. |
| 1 board | Pressure-treated 2×82×8 × 4.88 m | Ledger 4.88 m long, 2×8: at least 2×8 and as deep as the joists. |
| 1 board | Pressure-treated 2×82×8 × 4.88 m | 12 blocks of 368 mm between the joists over the beam: they keep the joists from rolling. Cut 12 × 368 mm (13 a board) from 4.88 m boards. |
| 1 board | Pressure-treated 2×82×8 × 4.88 m | Joists spanning more than 2.1 m get mid-span restraint: a row of blocks (or strapping) across the middle. Cut 12 × 368 mm (13 a board) from 4.88 m boards. |
| 13 hangers | Joist hangersfor 2×8, G185 or stainless | One per joist at the ledger. At least 60% of the joist’s depth; every hole nailed. |
| 13 ties | Hurricane ties (joist to beam)galvanized | One per joist where it crosses the beam. |
| 12 screws | Lag screws 13 mm with washers (hot-dip galvanized)13 mm, 100 mm or longer | Every 483 mm along 4.88 m for a 3.28 m joist span (deck guide), staggered top and bottom, 51 mm from the edges. |
| 2 pieces | Z-flashing, 3.05 m | Over the top of the ledger, 152 mm laps, siding lapped over it. |
| 1 roll | Self-adhered flashing tape, 152 mm × 22.86 m | Behind the ledger and over its top: two strips 4.88 m long, plus the bolt holes. |
| ≈308 (4 boxes of 100) | Connector fastenershanger nails or connector screws | About 10 per hanger and tie and 12 per post base and cap — the size on each connector’s label, not deck screws. |
| ≈231 (3 boxes of 100) | Coated deck screws76 mm coated | 3 per joist end into the rim, 2 per block end, and the beam’s plies in two rows every 406 mm (10d nails work too). |
| 28 boards | 5/4×6 treated deck board5/4×6 × 4.88 m | 26 rows of 140 mm boards with 3 mm gaps across 3.66 m = 26 boards, +5% for culls and miscuts. |
| ≈676 screws (7 boxes of 100) | Coated deck screws64 mm coated | 2 per board at every joist: ≈338 crossings. |