Groundworks

Ballast calculator

Example: Order: 15 × cement bags and 2.31 t of ballast

Concrete mix calculator

Example: Order: 13 × cement bags, 0.70 t sharp sand and 1.41 t gravel

Drain fall calculator

Example: Drop: 300 mm over the run (1 in 40, 2.50%)

Muck away calculator

Example: 2 × 8 yd³ skips for 6.25 m³ of loose spoil

Patio calculator

Example: Order: 34 slabs, 7 × cement bags and 0.92 t of sharp sand

Soakaway calculator

Example: Storage depth 1.00 m (0.74 m³ of storage for the critical storm)

Block paving calculator

Example: Order: 1,050 blocks

Cubic metres to tonnes calculator

Example: 3.00 m³ ≈ 6.30 t

Percolation test calculator

Example: Infiltration rate f = 3.55 × 10⁻⁵ m/s

Skip size calculator

Example: 6 yd³ skip (4.59 m³) for 3.50 m³ of waste

Driveway estimator

Plan a block-paved drive: dig, muck away, sub-base, blocks, sand and drainage notes, in one printable shopping list.

Patio estimator

Plan a patio from dig to jointing: muck away, sub-base, slabs, bedding mortar and the fall, in one printable shopping list.

Shed base estimator

Plan a shed base from dig to finish: muck away, MOT Type 1, concrete or slabs and ballast, in one printable shopping list.

Landscaping

Concrete and mortar