Bit & GrainBit & Grain

Mortar Calculator

Calculate 70-lb bags of mortar for a masonry wall. Joint thickness and block size affect coverage.

Enter the total face area of the wall: length x height in feet.

Mortar Bags (70 lb)4bags
Estimated Mortar Volume1.8cu ft
Mortar type reference (ASTM C270):
  • Type S: High strength. Below-grade, exterior, and in contact with the ground.
  • Type N: General purpose. Above-grade exterior and interior non-load-bearing.
  • Type M: Very high strength. Foundations, retaining walls, walks, and sewers.

Bag count is the same regardless of type. Specify on your order.

For reference only. Verify with your local building code and a licensed professional before making decisions.

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