How many bricks for a 10m × 3m wall?

A 10m × 3m wall is 30 square metres. At 59.3 bricks per square metre for a standard 215 by 65 millimetre brick with a 10 millimetre joint, that is 1778 bricks for a single skin, or 1956 once the usual ten percent is added for breakage and cuts. For a full-brick wall of two wythes, double it to about 3912.

How many packs of bricks for a 10m × 3m wall?

Around 4 packs, taking a pack as 500 bricks — though pack sizes vary from about 400 to 500 by manufacturer, so check the delivery note. Order all 4 together so they come from one batch — colour varies between firings, and a top-up delivered later will be visible on the finished wall.

How long does a 10m × 3m wall take to build?

At 400 to 600 bricks a day for an experienced bricklayer, 1956 bricks is roughly 4 to 5 days of laying for one person on straightforward work. A capable amateur laying 150 to 200 a day should allow 10 to 14 days. Openings, returns and cutting slow it down considerably more than height does.

What is a 10m × 3m wall usually for?

Long boundary or double garage. The size decides more than the brick count: it decides whether the wall needs a scaffold, whether it needs movement joints, and whether a single skin is structurally adequate. At three metres this is above comfortable working height, so it needs a tower or scaffold and wants building in two lifts. And at this length it needs a movement joint — clay brickwork wants one every ten to twelve metres.

Can I lay bricks in cold weather?

Not below about three degrees and falling. Mortar gains strength by hydration, which slows sharply as it cools and stops altogether near freezing, and mortar that freezes before it has set is permanently damaged rather than merely delayed. The wall will look fine and be weak. If work has to continue, cover it, use warm water in the mix, and protect fresh work overnight — but the honest answer is usually to stop and wait.

How many bricks are there in a square metre?

About 59.3 for a standard 215 by 65 millimetre brick with a 10 millimetre joint, which most people round to 60. The figure comes from the module rather than the brick itself: each brick occupies 225 by 75 millimetres of wall once its joint is counted. Working from the bare brick face gives 71.6 per square metre, about 21% too many, which is the most common way a brick order comes out oversized.

What is a wythe and do I need one or two?

A wythe is a single thickness of brick. One wythe — a half-brick wall — is 102.5 millimetres thick and suits the outer leaf of a cavity wall or a low garden wall. Two wythes make a full-brick wall at 215 millimetres, which is what free-standing walls above about a metre and a half need for stability. Setting the wythes correctly matters more than any other input here, because it doubles the brick count.

How much waste should I allow on bricks?

Ten percent is the standard allowance and it is what these figures include. Bricks break in transit, they break being cut, and every opening, corner and reveal produces cuts whose offcuts are unusable. Walls with a lot of detail justify more — fifteen percent where there are many openings or where a decorative bond needs half bricks at every course end. Ordering short is worse than ordering over, because a top-up order will not match the batch.

Why do bricks from a second delivery not match?

Because clay bricks take their colour from the clay and the firing, and both vary between batches. Two packs from the same batch will match; two packs made weeks apart may not, and the difference is often invisible on a pallet and obvious on a wall. Order everything at once for a single wall, keep the leftovers for future repairs, and if a top-up is unavoidable, blend the new bricks through the remaining old ones rather than laying them as a block.

Bricks for a 10m × 3m Wall

Thirty square metres is a long boundary wall or the side of a double garage, and it is the size at which movement joints become a real consideration rather than a technicality. Brickwork expands and contracts with temperature and moisture, and a long unbroken run has nowhere to put that movement except into cracks. Th..

WALL DIMENSIONS

BRICK TYPE

215 × 65mm face · 10mm joint · 59.3 bricks/m²

WALL THICKNESS

WALL HEIGHT (metres)

WALL LENGTH (metres)

OPENINGS — doors + windows (m² total)

m²

Standard door ~1.9m² · Standard window ~1.2m² · Enter 0 if none

WASTE ALLOWANCE (%)

5% = simple rectangular wall · 10% = standard · 15% = complex cuts / patterns

PRICE PER 1,000 BRICKS (optional)

US common face brick: $400–$900/1,000 · Premium: $1,000–$2,500+

RESULTS — UK Standard, 1 wythe

BRICKS NEEDED (incl. 10% waste)

1,956

bricks

MORTAR BAGS (80lb)

NET AREA

30.0 m²

BRICK MATERIAL COST

$1,369

at $700/1,000 bricks

WALL PATTERN — UK Standard

WALL SUMMARY

Gross wall area30.00 m²

Net area (less openings)30.00 m²

Bricks/m² (this type)59.26

Bricks net (no waste)1,778

Bricks + 10% waste1,956

Mortar (pre-mix 80lb bags)49

Mortar volume1.115 m³

Brick material cost$1,369

BRICK SIZE REFERENCE

US Standard203.2×57.15mm · 70.5/m²

US Modular194×57mm · 73.9/m²

UK Standard215×65mm · 59.3/m²

Australia Standard230×76mm · 48.4/m²

Metric Modular200×100mm · 43.3/m²

WASTE GUIDE

Simple rectangular walls, no cuts

Standard walls with few openings

10%

Typical residential — recommended

15%

Complex shapes, patterns, arches

Created with❤️byeaglecalculator.com

HOW TO USE

1
The calculator opens with 10 metres long by 3 metres high already entered, in metric, with a standard 215 by 65 millimetre brick selected.
2
Change the brick type if yours differs — US Standard, US Modular and Australian sizes are all there, and the coverage changes substantially between them.
3
Set the wythes to two if this is a full-brick wall rather than a single skin. That doubles the count, and for a free-standing wall at 3 metres it is usually the right setting.
4
Enter any openings as an area to deduct. On a wall this size a single door or window is a meaningful fraction of the total.

WORKED EXAMPLE

A 10m × 3m wall in standard 215 by 65 millimetre brick with a 10 millimetre joint, single skin. The area is 10 × 3 = 30 square metres. Each brick occupies a module of 225 by 75 millimetres — the brick plus one joint on two sides — which is 0.016875 square metres. One divided by that gives 59.26 bricks per square metre. So 30 × 59.26 = 1778 bricks for the bare wall. Adding ten percent for breakage and cuts brings the order to 1956. Note what happens if you work from the brick rather than the module: 215 by 65 is 0.013975 square metres, giving 71.6 bricks per square metre and 2362 for this wall. That is about 21% too many — on this wall, 406 bricks bought for nothing. For a full-brick wall of two wythes, double the figure to 3912.

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Last updated: July 29, 2026 · Formula verified by EagleCalculator team · Eagle-eyed accuracy for every calculation.