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A single-chamber bat roost box with a grooved back panel for grip and a ventilation gap up front.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Back Joined edge-to-edge to form the full back panel; grooved on the interior face. | 2 | 3/4" × 9 1/4" × 16 1/2" | 1x10 | ☐ |
| Sides | 2 | 3/4" × 2 1/2" × 20" | 1x3 | ☐ |
| Front, lower | 1 | 3/4" × 9 1/4" × 18" | 1x10 | ☐ |
| Front, upper Mounted with a 1/4" gap below it, against the lower front board, for ventilation. | 1 | 3/4" × 5 1/2" × 18" | 1x6 | ☐ |
| Top | 1 | 3/4" × 5 1/2" × 19 1/2" | 1x6 | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| Cedar or weather-resistant lumber, 1x10, 6 ft Avoid pressure-treated stock — bats are in close, prolonged contact with this wood. | 1 each | ☐ |
| Cedar or weather-resistant lumber, 1x3, 6 ft | 1 each | ☐ |
| Cedar or weather-resistant lumber, 1x6, 6 ft | 1 each | ☐ |
| 1-5/8" screws | 12 each | ☐ |
| 1-1/4" pocket screws | 6 each | ☐ |
| Wood glue | 2 oz | ☐ |
Overall cost: $. Lumber varies by region, species, and season, so we give a band rather than a figure.