Construction
How to Calculate Bricks and Mortar for Walls: Masonry Estimating Guide
Just ask and get Editorial Team(Civil & Construction Engineering)
Updated 2026-09-20
6 min read
Key Takeaway:A mason’s guide to calculating brick quantities, joint thickness deductions, mortar bag yields, and estimating buffers.
Standard Rule of Thumb for Modular Bricks
Standard US modular brick construction requires approximately 7 bricks per square foot of wall surface area for a single wythe, or 14 bricks for a double-wythe structural wall, factoring in 3/8-inch mortar joints.
Frequently Asked Questions
How much mortar is needed per 100 bricks?
As a reliable standard rule of thumb, you will need approximately half a bag (40 lbs) of pre-blended mortar mix for every 100 modular bricks laid.