Brick Calculator

Estimate bricks, mortar bags, and sand for your brick wall

Wall Length ft Total length of the brick wall

Wall Height ft Height of the brick wall

Brick Length in Standard modular brick: 8"

Brick Height in Standard modular brick: 2.25"

Mortar Joint in Standard joint thickness: 0.375" (3/8")

Bricks Needed

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bricks

Mortar Bags

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bag

Sand

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cu yd

Wall Area

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sq ft

Disclaimer: Results are estimates based on standard formulas. Not a substitute for professional advice from a licensed contractor, engineer, or architect. Verify all calculations before making purchasing or construction decisions.

How to Use This Calculator

Building a brick wall? Accurate material estimates keep your project on budget and reduce waste. Our calculator accounts for brick dimensions and mortar joint thickness for a precise count.

Measure the total length and height of your wall in feet
Confirm your brick dimensions (standard modular is 8" x 2.25")
Enter the mortar joint thickness (3/8" is standard)
The calculator adds a 5% waste factor for cuts and breakage

Expert Insights Smart analysis for your Brick project

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Brick Type Intelligence

Modular, queen, and king bricks have different face dimensions. Our calculator adjusts the per-square-foot count based on your exact brick size and joint.

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Mortar Yield Optimization

One 80 lb bag of premixed mortar lays roughly 30 standard bricks. Field conditions and joint depth can shift yield by 10-15%.

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Waste Factor Guidance

Straight walls need ~5% waste. Walls with many openings, corners, or soldier courses typically require 10-15% extra bricks.

Calculation Formula

Effective width = Brick length + Mortar joint (in) Effective height = Brick height + Mortar joint (in) Bricks per sq ft = 144 / (Effective width x Effective height) Wall area = Wall length x Wall height (sq ft) Bricks = ceil(Wall area x Bricks per sq ft x 1.05) (5% waste) Mortar bags = ceil(Bricks / 30) Sand (cu yd) = ceil(Bricks / 500)

Brick Material Comparison

Brick Type	Dimensions (in)	Bricks/sq ft	Mortar Bags/1000	Typical Use
Modular	8 x 2.25	~7	33	Residential walls
Queen	9.625 x 2.75	~5	28	Veneer, accents
King	9.625 x 2.625	~5	28	Commercial walls
Engineer Modular	8 x 2.5625	~6	33	Structural walls

Authority References

Our calculations are based on guidelines and standards from these authoritative sources:

Brick Industry Association (BIA) — Technical Notes on Brick Construction. Learn more
National Concrete Masonry Association (NCMA) — Masonry Design Manuals. Learn more
International Building Code (IBC) — Chapter 21 — Masonry. Learn more

Frequently Asked Questions

How many bricks do I need per square foot?

A standard modular brick (8" x 2.25" with a 3/8" mortar joint) covers about 7 bricks per square foot of wall area.

How much mortar do I need for 1000 bricks?

Approximately 33 bags of 80 lb premixed mortar are required to lay 1000 standard bricks, plus about 1 cubic yard of masonry sand.

What waste factor should I add for bricks?

A 5% waste factor is standard for straight walls. Use 10-15% for walls with many cuts, corners, or openings.