OnlineTool.me

Brick Calculator

Enter wall dimensions, openings, brick face size, mortar joint, and waste to get the bricks to purchase.

Estimate Bricks for a Wall

Enter wall area, openings, brick face dimensions, mortar joint, and waste to get a rounded purchase quantity.

Your brick purchase quantity and net wall area will appear here.

How to Use Brick Calculator

1

Measure the Wall

Enter gross wall length and height, then total door and window areas.

2

Match the Brick Module

Use the supplier’s face length, face height, and intended mortar joint.

3

Review the Purchase Total

Select waste and check the rounded quantity against layout and supplier packaging.

Brick Calculator Features

  • Live wall-area and brick estimate
  • Door and window deductions
  • Editable face size and mortar joint
  • Waste-adjusted whole-brick purchase total

Common Use Cases

Estimate a brick veneer wall

Convert net rectangular wall area into a preliminary unit count.

Compare brick modules

Change face dimensions and mortar joint to match a supplier’s specified product.

Limits and Important Notes

Result type: Planning estimate

Calculation Details

  • Calculate gross wall area and subtract openings.
  • Add mortar joint to the brick face dimensions to form the constructed module.
  • Divide net area by module face area.
  • Add waste and round up to a whole brick.

Formula

Bricks = ceil(((wall area − openings) ÷ ((brick length + joint) × (brick height + joint))) × (1 + waste%))

Rounding

Purchase quantity rounds up; areas and density display to two decimals.

Default Assumptions

  • Brick is laid as a stretcher in a single visible face.
  • Default specified face is 7⅝ × 2¼ inches with a ⅜-inch mortar joint.
  • Waste represents cuts, breakage, and handling only.

Verified Example

Inputs: 20 × 8 ft wall, no openings, default modular face and joint, 5% waste.

Calculation: The constructed module is 8 × 2⅝ in, or 6.857 bricks/sq ft; 160 × 6.857 × 1.05.

Result: Purchase estimate = 1,152 bricks.

Sources and Version

Version: US modular brick face planning model

Last verified: 2026-08-12

Update responsibility: OnlineTool.me

  • Confirm specified brick dimensions, joint thickness, bond pattern, corners, returns, and supplier packaging.
  • Headers, soldiers, arches, multiple wythes, structural design, ties, lintels, mortar, and labor are excluded.
  • Irregular layouts should be separated into measured wall sections.

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Frequently Asked Questions