Construction

Brick Calculator

Construction

Brick Calculator

Live answer803 bricks12.6 m² net · module 0.016875 m²

Wall length (m)Measure the finished wall length in metres.Wall height (m)Measure the finished wall height in metres.Brick face length (mm)Common UK face length is 215 mm; use the product size from your brick.Brick face height (mm)Common UK brick height is 65 mm; enter the visible face height.Mortar joint thickness (mm)A 10 mm planning joint is common, but always check the drawing or site requirement.Doors/windows/openings (m²)Subtract the total area of openings from the wall face.Waste and breakage allowance (%)Add a practical allowance for cuts, breakage, colour blending and site handling.

Live result803 bricks12.6 m² net · module 0.016875 m²

Formula used

Gross wall area = length × height. Net wall area = max(0, gross wall area − openings). Module area per brick = ((brick length + mortar joint) ÷ 1000) × ((brick height + mortar joint) ÷ 1000). Bricks before waste = net wall area ÷ module area. Order bricks = ceil(bricks before waste × (1 + waste percent ÷ 100)).

This is the method behind the answer, so the result can be checked rather than simply trusted.

Live math canvas

Your numbers, formula and explanation together

Brick Calculator: 803 bricks. 12.6 m² net · module 0.016875 m²

Formula applied

The exact method behind this answer

CalculationTime keeps the method visible so the number can be checked instead of blindly trusted.

Gross wall area = length × height. Net wall area = max(0, gross wall area − openings). Module area per brick = ((brick length + mortar joint) ÷ 1000) × ((brick height + mortar joint) ÷ 1000). Bricks before waste = net wall area ÷ module area. Order bricks = ceil(bricks before waste × (1 + waste percent ÷ 100)).

Apply the formulaGross wall area = length × height. Net wall area = max(0, gross wall area − openings). Module area per brick = ((brick length + mortar joint) ÷ 1000) × ((brick height + mortar joint) ÷ 1000). Bricks before waste = net wall area ÷ module area. Order bricks = ceil(bricks before waste × (1 + waste percent ÷ 100)).803 bricks12.6 m² net · module 0.016875 m²

Your live breakdown

Current inputs in the calculation

These values come from the controls above and update when the calculator changes.

Wall length: 6 m
Wall height: 2.4 m
Brick face length: 215 mm
Brick face height: 65 mm
Mortar joint thickness: 10 mm
Doors/windows/openings: 1.8 m²
Waste and breakage allowance: 7.5 %

Resulting answer

803 bricks

12.6 m² net · module 0.016875 m²

Answer: 803 bricks
Live support: 12.6 m² net · module 0.016875 m²

Assumptions used

What this answer assumes

Planning estimate only. Use the printed assumptions beside drawings, supplier quotes and trade takeoffs.

This estimates a single visible wall face using brick face dimensions and a horizontal/vertical mortar joint module.
Openings are subtracted as simple square metres; returns, reveals, piers, corners, bond pattern changes and cuts are not modelled separately.
Wall thickness, structural design, reinforcement, lintels, damp proofing, ties and local code requirements are outside this arithmetic estimate.
Use the brick manufacturer’s actual size, bond pattern and project specification before ordering materials.

Master’s Tip

How to use the result well

Master’s Tip: keep the waste allowance visible instead of silently rounding the wall area. Brick estimates are sensitive to openings, bond pattern, joint size and cuts around corners, so a printable record should show the assumptions before anyone prices or orders.

Printable record

What belongs in the saved calculation

Save the inputs, result, formula, assumptions, page URL and date together so the calculation can be reviewed later.

Wall length: 6 m
Wall height: 2.4 m
Brick face length: 215 mm
Brick face height: 65 mm

Visual grid

This result measures part of the space you live in

Length, area, volume and material estimates are grid problems too: measure the space, account for edges and allowances, then turn the pattern into a number you can use.

Micro-timehours, minutes, shiftsHuman scaledays, weeks, projectsMacro-timemonths, years, calendars

Measured output803 bricks

Space calculations turn a real surface, room, run or volume into cells, edges and allowances that can be quoted, ordered or checked.

803 bricks12.6 m² net · module 0.016875 m²

Inputs

Wall length: 6 m
Wall height: 2.4 m
Brick face length: 215 mm
Brick face height: 65 mm
Mortar joint thickness: 10 mm
Doors/windows/openings: 1.8 m²
Waste and breakage allowance: 7.5 %

Method

Wall area is 6 × 2.4 = 14.4 m². Subtract 1.8 m² of openings to get 12.6 m² net. A 215 mm × 65 mm brick with 10 mm joints has a module of 225 mm × 75 mm, or 0.016875 m². 12.6 ÷ 0.016875 = 746.67 bricks. With 7.5% waste, order ceil(746.67 × 1.075) = 803 bricks.

Assumptions

This estimates a single visible wall face using brick face dimensions and a horizontal/vertical mortar joint module.
Openings are subtracted as simple square metres; returns, reveals, piers, corners, bond pattern changes and cuts are not modelled separately.
Wall thickness, structural design, reinforcement, lintels, damp proofing, ties and local code requirements are outside this arithmetic estimate.
Use the brick manufacturer’s actual size, bond pattern and project specification before ordering materials.

Notes

Use this space on the printed report for client, supplier, classroom, job-location, measurement, quote or approval notes.