AG Mechanics CDE Practice Exam 2025 – Comprehensive Test Prep Resource

Question: 1 / 400

The most common size of a mortar joint is:

1/4"

1/2"

3/8"

A 1/4" is typically too thin for a mortar joint and may not provide enough support for the bricks or stones.

B: 1/2" may be too thick for a mortar joint, resulting in excess mortar that may be unsightly.

D: 5/8" is considered large and may not adhere well to the bricks or stones, leading to potential cracking and settling. Therefore, the most common and recommended size for a mortar joint is 3/8", providing a good balance of strength and aesthetics.

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5/8"

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