Building Materials Volume and Area Calculators.

Custom Calculators

We have the following online building materials quantity, volume, area and cost calculators for your use. Although we endeavour to ensure that the calculations are correct, please bear in mind that they are for guidance only and we cannot therefore accept any liability for the quantities and costings given.

Each calculator will have several user-definable values which you can vary by clicking the "Change Optional Values" button. These values are unique to each calculator and will be retained when the "Calculate" button is clicked. These values will be automatically inserted into the calculator page when you re-visit a calculator.

Excavated Material Calculators

(also known as bulking) - Enter the length, width and depth of excavation in metres. The results estimate will be given for the cubic metres of resultant spoil. Includes quantity and tonnes of excavations for sound rock, chalk, earth, clay, sand & gravel

Sub Base Calculator

Enter the area in square metres (length x width) and the required compacted depth and the estimator will provide the approximate quantity of crusher run required for a consolidated sub base.

Concrete Calculator Readymix

Enter the length & width in metres and the depth in millimetres and the estimator will work out the total volume of concrete required for your project.

Concrete Calculator Mix on Site

Enter the dimensions asked for and this will calculate the required quantities of sharp sand, gravel (aggregate) and cement.

Patio Paving Calculator

Calculates you building materials required to lay a specified patio area. Allows various sizes of slab/flag to be specified.

Paving Cost Estimator

Estimator for a given area and slab size, this works out the overall cost in square metres & yards of any size of flag or slab.

We are always looking to refine these calculators and add more useful tools, please let us know if there are any other tools that would be useful. Also check back regularly for updates.