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A boat-shaped sandbox built from 2x12 hull sides with a real cloth sail on a mast — angled hull ends are the only tricky cut.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Hull sides Both ends cut at 45°. | 2 | 1 1/2" × 11 1/4" × 96" | 2x12 | ☐ |
| Deck boards | 2 | 1 1/2" × 5 1/2" × 49" | 2x6 | ☐ |
| Hull end pieces (2x6) | 4 | 1 1/2" × 5 1/2" × 45" | 2x6 | ☐ |
| Hull end pieces (2x4) | 2 | 1 1/2" × 3 1/2" × 45" | 2x4 | ☐ |
| Mast | 2 | 1 1/2" × 3 1/2" × 72" | 2x4 | ☐ |
| Sail boom dowel | 1 | 1 1/4" × 1 1/4" × 48" | Dowel | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| 2x12 board, 8 ft (Pressure-treated pine) The hull sides — this is what gives the sandbox its boat shape. | 2 each | ☐ |
| 2x6 board, 8 ft (Pressure-treated pine) | 3 each | ☐ |
| 2x4 board, 8 ft (Pressure-treated pine) | 1 each | ☐ |
| 2x4 board, 12 ft (Pressure-treated pine) The mast pieces come from this longer board. | 1 each | ☐ |
| Exterior fabric, 45" width | 3 yard | ☐ |
| Exterior rope | 1 each | ☐ |
| Exterior wood glue | 6 oz | ☐ |
| Deck screws, 2-1/2", self-tapping | 50 each | ☐ |
| Wood dowel, 1-1/4", 48" | 1 each | ☐ |
| I-bolts (for sail rigging) | 4 each | ☐ |
Overall cost: $$. Lumber varies by region, species, and season, so we give a band rather than a figure.
Tools: Circular Saw, Speed Square. Materials: 2x12 board, 8 ft
Mark and cut 45° angles at both ends of both 2x12 hull sides, using a speed square as your angle guide.
Tools: Drill / Driver. Materials: 2x12 board, 8 ft, 2x6 board, 8 ft, Exterior wood glue, Deck screws, 2-1/2", self-tapping
Position the two hull sides on a flat, level surface. Apply exterior glue and screw the deck boards to the edges of the hull sides with 2-1/2" deck screws.
Tools: Drill / Driver. Materials: 2x6 board, 8 ft, 2x4 board, 8 ft, Exterior wood glue, Deck screws, 2-1/2", self-tapping
Flip the assembly over. Apply glue to the mating surfaces and screw the 45"-long 2x4 and 2x6 hull end pieces to the angled ends of the hull sides.
Tools: Drill / Driver, Drill Bit Set. Materials: 2x4 board, 12 ft, Exterior wood glue, Deck screws, 2-1/2", self-tapping, Wood dowel, 1-1/4", 48"
Screw the two mast pieces to the inside of the hull sides, centered, with glue and at least four screws per side. Drill a hole in the top of the assembled mast for the sail boom dowel and thread the dowel through.
Materials: Exterior fabric, 45" width, Exterior rope, I-bolts (for sail rigging)
Cut the fabric to 45" wide by 3 yards long. Fold and hem the sides and ends, then fold the corners in and stitch to create a channel for rope at each corner. Screw the I-bolts into the corners of the deck boards, then tie rope between the I-bolts and the sail, pulling the sail over the boom dowel and tightening it down.