How accurate are the Citadel Stone calculators?

Our calculators provide high-precision estimates based on specific material densities, though we recommend adding a 5-10% buffer to your final Citadel Stone order to account for site compaction and wastage.

Can I calculate tonnage for different types of stone?

Yes. Whether you are measuring for crushed aggregate , decorative gravel , or stone paving , our tools allow you to select the specific material type to ensure the weight-to-volume ratio is correct.

How deep should I lay my Citadel Stone materials?

For pedestrian paths , a depth of 30-40mm is standard. For driveways using Citadel Stone aggregates , we recommend a minimum depth of 50mm to ensure full coverage and durability under vehicle weight.

Does the calculator account for irregular project shapes?

The standard tool calculates rectangular areas. For irregular gardens or curved paths , we suggest breaking the space into smaller sections, calculating each, and then totalling the results for your Citadel Stone order.

Are these calculators suitable for commercial construction?

Absolutely. Our tools are designed for both DIY homeowners and professional contractors needing fast tonnage estimates for large-scale commercial stone installations .

Why is it important to calculate stone volume before purchasing?

Accurate calculation prevents over-ordering (wasting money) and under-ordering (causing project delays and extra delivery fees), ensuring your Citadel Stone project stays on budget and on schedule.

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Stone Calculators & Free Project Tools

Free planning tools for natural stone projects — work out coverage, budget, durability and upkeep before you order. Every tool is free, runs in your browser, and uses the same specifications we sell against. For live wholesale pricing, start with the Price Index.

Natural Stone Price IndexNEW

Real wholesale per-square-foot prices across our full 85-product catalog — low, median and high by material and product type. Updated quarterly, free to cite.

Open the index

Stone Coverage Calculator

Convert your project area into square feet or square meters and the number of pavers or tiles you need, with a sensible cutting allowance.

Calculate coverage

Project Cost Estimator

Turn area, stone type and thickness into a working budget range for your patio, pool deck or driveway.

Estimate my project

Pool Coping CalculatorNEW

Enter your pool perimeter and coping width to get coping area, piece count and a wholesale material estimate.

Calculate coping

Paver Pattern CalculatorNEW

Every layout wastes stone differently — choose yours and see the true order quantity before you buy.

Calculate my pattern

Durability & Climate Calculator

Check how a stone choice holds up in your climate — freeze-thaw, heat, salt and pool chemistry.

Check durability

Lifespan & ROI Calculator

Compare the long-term cost of natural stone against concrete and other surfaces over the life of your hardscape.

Compare lifetime cost

Sealer & Maintenance Planner

Build a sealing and maintenance schedule for your stone, finish and exposure — and see what upkeep really involves.

Plan maintenance

Outdoor Paver Load Calculator

Verify thickness and bedding for the loads your paving must carry — from foot traffic to driveways.

Check load rating

Stone Finish Comparison Chart

Brushed, sawn, honed, tumbled, split-face and bush-hammered — compare slip resistance, feel and where each finish belongs.

Compare finishes

Need real numbers instead?

Send us the spec you have been quoted and we will return a delivered quarry-direct comparison — samples at your door within 3 working days.

Check my price