Standard UK sizes · Metric & Imperial

How many bricks do you need?

Enter your wall dimensions and get an exact material list — bricks, mortar, sand, and cement — ready to order.

Wall Dimensions
metres
metres

1:4 is standard for most brickwork. Use 1:3 for engineering bricks or below DPC.

Deductions (optional)
no.
Waste & Costing
Wastage allowance
%
£

Typical UK range: £450–£900 per 1000. Leave blank to skip cost.

Your materials list
🧱

Enter your wall dimensions
and press Calculate

How much sand & aggregate do you need?

Calculate exact tonnes, bulk bags, or mini bags needed for any area and depth — sharp sand, building sand, gravel, MOT Type 1 and more.

Material Type
Area & Depth
m
m
mm

Typical depths: Patio sand bed 30–50mm · MOT sub-base 100–150mm · Building sand/holm sand 25–50mm

Bag Size Preference
Cost (optional)
£

Bulk bag prices: Sharp sand £55–£75 · Holm sand £50–£70 · MOT Type 1 £65–£85 · Gravel £70–£95

Wastage allowance
%
Your materials list

Choose your material, enter the area and depth, then press Calculate

How much concrete do you need?

Slabs, footings, paths and columns. Get exact volumes, site-mix quantities, or ready-mix lorry estimates.

Slab Type
Dimensions
m
m
mm

Typical depths: Patio 75–100mm · Garage floor 100mm · Driveway 150mm · Footings 200–400mm

Concrete Mix
Supply Method
Wastage allowance
%
Your materials list
🏗

Enter your slab dimensions
and press Calculate

Paving & driveway materials

Calculate slab or block counts and edging for any paving project.

Paving Type
Area
m
m
Slab / Block Size
Wastage allowance
%
Your materials list
🔲

Enter your paving area
and press Calculate

How much plaster do you need?

Calculate bags of finish coat, bonding, or sand-and-cement render for any room or wall area.

Plaster Type
Area
m
m
m
openings

Each opening deducted at approx 1.8m² (standard door size)

Cost (optional)
£

Typical UK prices: Thistle finish £10–£14 · Bonding £9–£13 · Sand &cement render from £5

Wastage allowance
%
Your materials list
🪣

Enter room dimensions
and press Calculate

How many concrete blocks do you need?

Standard block-on-edge walling or block-on-flat foundation courses — get block count, mortar, sand, and cement ready to order.

Laying Method

Standard method — block laid with the 215mm face vertical. Used for internal walls, cavity wall inner leaf, outbuildings.

Block Size
Wall Dimensions
m
m

For block-on-edge: height is the finished wall height.

Deductions (optional)
no.
Mortar Mix

1:4 is standard for blockwork above DPC. Use 1:3 for below-ground or structural work.

Waste & Costing
Wastage allowance
%
£

Typical UK prices: Standard 100mm £0.90–£1.40 · Dense £1.10–£1.60 · Jumbo from £1.80

Your materials list
🟫

Choose laying method, enter dimensions, then press Calculate