- 50200 × 100mm blocks per m²
- +10%for herringbone cuts
- 150mmMOT sub-base for cars
- 40mmsharp sand bed
Block paving by driveway size
200 × 100mm blocks, herringbone (+10%), edging all round, 150mm MOT, 40mm sharp sand, 850kg bulk bags.
| Drive | Area | Blocks | Edging | MOT Type 1 | Sharp sand |
|---|---|---|---|---|---|
| 5 × 3 m | 15 m² | 825 | 84 | 4.96 t (6 bags) | 1.09 t (2 bags) |
| 6 × 4 m | 24 m² | 1,320 | 105 | 7.94 t (10 bags) | 1.74 t (3 bags) |
| 8 × 5 m | 40 m² | 2,200 | 137 | 13.2 t (16 bags) | 2.90 t (4 bags) |
| 10 × 6 m | 60 m² | 3,300 | 168 | 19.9 t (24 bags) | 4.36 t (6 bags) |
The sub-base is the big order: a 6 × 4m drive needs nearly 8 tonnes of MOT. Digging it out makes a lot of soil too; see what size skip for muck away.
The sum
Blocks = area (m²) × 50 × 1.1
6 × 4m: 24 × 50 × 1.1 = 1,320
The block paving calculator also works out kiln-dried jointing sand and the concrete haunching for the edges.
