Typical weight of plywood used to make ribs on homemade radio dish
The weight of a 6 ft × 4 ft sheet of plywood depends on its thickness and the wood species/density. Let’s go step by step:
1. Area of sheet
6 ft×4 ft=24 ft26 \text{ ft} \times 4 \text{ ft} = 24 \text{ ft}^2
2. Typical plywood density
- Plywood density ranges ~34–43 lb/ft³ (550–690 kg/m³).
- I’ll use ~40 lb/ft³ (640 kg/m³) as an average.
3. Common thicknesses & weights
| Thickness | Volume (ft³) | Weight (lb) | Weight (kg) |
| 1/4 in (0.25″) | 24 × 0.0208 = 0.5 ft³ | ~20 lb | ~9 kg |
| 1/2 in (0.5″) | 24 × 0.0417 = 1.0 ft³ | ~40 lb | ~18 kg |
| 3/4 in (0.75″) | 24 × 0.0625 = 1.5 ft³ | ~60 lb | ~27 kg |
✅ So, depending on thickness:
- 1/4″ sheet → ~20 lb (9 kg)
- 1/2″ sheet → ~40 lb (18 kg)
- 3/4″ sheet → ~60 lb (27 kg)