Mortar Calculator

Estimate the amount of mortar mix needed for brick laying, block work, and stone veneer projects. Enter the wall area and joint dimensions to calculate the number of bags required.

Enter Your Measurements

Wall Area(sq ft)

Joint Width(in)

Joint Depth(in)

Results

80 lb Bags

bags

60 lb Bags

bags

Mortar Volume

3.42

cubic feet

Formula

Mortar volume based on joint dimensions and wall area coverage

How to Use This Calculator

How to Use

1
Enter the total wall area in square feet.
2
Enter the mortar joint width in inches (standard is 3/8 inch).
3
Enter the mortar joint depth in inches.
4
Results show the estimated number of bags needed.

Frequently Asked Questions

How many bricks does one bag of mortar lay?

One 80 lb bag of mortar mix typically lays 35 to 40 standard bricks with 3/8-inch joints.

What type of mortar should I use?

Type N mortar is standard for above-grade exterior walls. Type S is used for below-grade and structural applications. Type M is the strongest, used for foundations and retaining walls.

In-Depth Guides

📖

How to Calculate Bricks: Estimating Guide for Walls & Patios

Calculate bricks for walls, patios, and walkways. Mortar quantities, brick types, bond patterns, waste factors, and cost per 1000 bricks.

Related Calculators

Brick Calculator

Block Calculator

Concrete Calculator

About This Calculator

This calculator uses the formula: Mortar volume based on joint dimensions and wall area coverage. All calculations follow industry-standard methods. Results are estimates — always verify with a licensed professional for structural or code-compliant work.

Built and maintained by the CalcSmart team. Last updated March 2026.

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