Skip to content
ENExplore Calculators

Stone Masonry Volume Calculator

Work out stone masonry volume instantly with clear inputs, formula shown and shareable results.

About Stone Masonry Volume Calculator

Random rubble stonework needs far more mortar than brickwork because the units are irregular: 20-30 percent of the wall volume is typical, against 15-20 percent for brick. Subtracting the mortar share gives net stone volume, which at about 2.6 tonnes per cubic metre converts to the tonnage to order.

Formulas

Masonry volume

V = length x height x thickness

Split

Mortar = V x mortar share; stone = V - mortar; stone tonnes = stone m³ x 2.6

Worked example

With the default values below, Stone Masonry Volume Calculator returns Masonry volume of 10.800. Change any input above and every figure here is recalculated in your browser.

Inputs used

Wall lengthminimum 0.1 m
12 m
Wall heightminimum 0.1 m
2 m
Wall thicknessminimum 0.05 m
0.45 m
Mortar share of volumeaccepts 5–45 %
25 %

Results

Masonry volume
10.800 m³
Stone volume
8.100 m³
Mortar volume
2.700 m³
Stone weight
21.06 t

Step by step

  1. 1Values used
  2. 2Masonry volume
  3. 3Split
  4. 4Masonry volume= 10.800 m³
  5. 5Stone volume= 8.100 m³
  6. 6Mortar volume= 2.700 m³
  7. 7Stone weight= 21.06 t

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Stone Masonry Volume figure worked out?

V = length x height x thickness. Random rubble stonework needs far more mortar than brickwork because the units are irregular: 20-30 percent of the wall volume is typical, against 15-20 percent for brick.

Why does coursed rubble use less mortar?

Dressed and coursed stone beds more closely, so the joints are thinner and the void fraction lower. Random rubble has large irregular gaps that all have to be filled.

What values do I need to enter?

This calculator takes 4 inputs: Wall length, Wall height, Wall thickness, Mortar share of volume. The pre-filled defaults are a realistic worked example — replace them with your own site or project figures.

Related Calculators

Stone Masonry Volume Calculator | Calcrivo