Allstone quarries its own armour stone and supplies projects from its quarry and Schomberg yard. Bring the appearance, dimensions and location you have in mind so the team can discuss the selection and logistics.
Plan the material
How much stone will you need?
Enter three measurements for a rough material-weight estimate. No contact details required.
Your wall dimensions
Use the total length and height of the section you’re planning.
Measure the face of the wall. Depth is the front-to-back thickness.
How this estimate is calculated
Length × height × depth gives volume. This planning calculator uses a factor of 165 lb/ft³. Weight is divided by 2,000 for US short tons, or converted from pounds to kilograms and divided by 1,000 for metric tonnes.
Stone size, shape and the wall detail affect the final order. Confirm the estimate and current material selection with Allstone.
Material in the landscape
One material. Many possibilities.
Find inspiration for your landscape in these examples from Allstone’s Armour Stone collection.
01
Retaining walls
Stone with scale and presence. Share wall dimensions and your project requirements.
02
Stairways
Discuss stone selection and the level changes in your landscape.
03
Garden walls
Define planted areas, edges and outdoor spaces.
04
Ponds
Bring natural stone into the setting around a water feature.
05
Waterfalls
Explore caprock and larger stone for a water-feature project.
06
Driveway edges
Frame an approach or define the edge of the landscape.
Choose the stone
Size. Colour. Natural variation.
The stone should suit the setting and the project detail. Bring a reference image or visit the yard to compare material in person.
It uses a volume estimate: length × height × stone depth, then 165 lb per cubic foot. The result is an approximate material weight. Confirm the factor and final quantity with Allstone for the selected stone.
What is the difference between tons and tonnes?
A US short ton is 2,000 lb. A metric tonne is 1,000 kg, approximately 2,204.62 lb. The calculator names the unit explicitly and lets you view either one.
What does stone depth mean?
Depth is the thickness from the front face of the wall to the back of the stone. It is a separate measurement from wall height. Enter the depth specified for your stone selection, or ask the team for help.
Can I get armour stone on pallets?
Allstone offers palletized supply on request. Ask the team to confirm availability and handling for your selection.
What sizes and colours are available?
Ask about heights of 8–20 inches, lengths of 3–5 feet and depths of 24–36 inches. Selections include Grey, Charcoal, Chestnut Brown, Dark Grey, Buckhorn and Grey Creek. Confirm current stone selections and dimensions with Allstone.
Can Allstone deliver to my project?
Share the destination postal code, material quantity and site-access details. The team can discuss delivery coverage, freight and unloading arrangements for your order.
Can I get help before I know the quantity?
Yes—start an enquiry with your approximate dimensions, intended use and any drawings or reference images. You can request help choosing the stone and working out the order.
Does this calculator specify the wall design?
It estimates material weight from dimensions. Wall design, foundation, drainage and installation requirements belong to the project’s design and installation team.
From our quarry to your project
Get an Armour Stone Quote.
Know what you need, or still working it out? Tell us about your project. A calculator estimate is optional.
