Proportions
| Portland cement | 1 part |
|---|---|
| Hydrated lime | 1 part |
| Sand | 6 parts |
| Typical strength | 750 psi · 5.2 MPa |
Mortar
Mortar mix ratio for brick
General above-grade brickwork is laid in Type N mortar. Its moderate strength and softness let the wall move without cracking the units.
Recommended mix
1 : 1 : 6portland cement : hydrated lime : sand
Type N mortar — about 750 psi (5.2 MPa).
Planning reference. Typical proportions and strength for general work, not a structural mix design. Load-bearing and structural work must follow your local building code and a qualified engineer's specification.
Why this mix
The general-purpose mortar (min 750 psi) for above-grade exterior and interior load-bearing walls. Its softness tolerates movement, so it is the default for most brickwork.
Once you know the mix, the volume calculators tell you how much of it to buy — cubic yards, cubic metres and the bag count in every size.
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