When should I use custom density?

Use density when estimating bulk material sold by ton, such as stone, soil, or recycled aggregate.

When should I use coverage per unit?

Use coverage when each bag, panel, roll, or box covers a known number of square feet.

Can this estimate cost?

Yes. Enter a price per unit when using coverage, or calculate bulk cost separately from the volume and tonnage.

Custom Material Calculator · True Build Cost

Inputs

Enter your measurements

Change any field and the results update instantly. Use supplier specs when you have them.

LengthftWidthftDepthinDensitytons/ydCoverage/unitsq ftWaste%Price/unit$

Tips & notes

Before you order

Assumptions that most often change the final quantity in the field—so you order with clearer eyes.

Use density when the supplier sells by weight and coverage when the product sells by unit.

Add waste for irregular shapes, compaction, cuts, or installation loss.

Keep all measurements in feet and inches consistently.

Confirm supplier minimums before treating the calculated quantity as an order.

Custom Material Calculator FAQs

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