Mortar Mix and Yield

Bags of mortar mix from brick / CMU count and joint thickness.

Run the calculator

Example

You enter

Unit count 600
Unit kind brick
Joint thickness (in) 0.375
Mortar type N

You get

Bags of mortar mix 20
Joint factor 1

Details, formula, and sources

Bag yields per PCA / NCMA: 1 bag (94 lb Type N) yields ~3.0 ft³ mortar; joint volume from joint_thickness × wall_area_per_bag; brick / 8-inch CMU joint-thickness adjustment.

PCA (Portland Cement Association) Design and Control of Concrete Mixtures by name; ASTM C270 mortar specs by name.

PCA / ASTM licensed; engineering-practice yield values free in published trade references.

Estimate. AHJ and licensed professional govern.

Field names used by the API: unit_count, unit_kind, joint_in, mortar_type, bags, joint_factor

Mortar type yield Type N: 94 lb bag → 3.0 ft³ per PCA TablePCA