Two limits, one delivery plan

Delivery load calculator

A truck can run out of space before it reaches its material payload, or reach its payload with space left over. Enter both planning limits and the product density to estimate the loads your order needs.

Supply limits established for the actual delivery arrangement. Payload means the allowance for material alone, not gross vehicle weight. This tool does not establish safe or legal vehicle capacity.

Use the same loose-material and moisture basis for volume and density. Enter the volume to be transported; no extra order allowance or compaction factor is added. Select input units before typing quantities.

Minimum loads within entered limits

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Enter the project volume, both load limits and bulk density.

Same volume limit, payload and density on every trip. No axle, towing, road-access or loading-distribution assessment is made.

Why a volume-only or weight-only count can miss a load

Volume and payload constrain different things. Usable bed space limits how many cubic yards fit. Material payload limits how much those yards can weigh. A light, bulky material may fill the space while leaving part of the payload unused. A dense material may reach the payload allowance before filling the bed.

This planner converts the entered payload into a volume using your bulk density, then compares it with the usable volume. The smaller value is the amount that fits both entered limits. The result is a quantity-planning ceiling, not a vehicle rating.

Payload-limited yd³ = payload lb ÷ density lb/yd³
Planned yd³ per load = smaller of usable yd³ and payload-limited yd³
Load count = total material yd³ ÷ planned yd³ per load, rounded up

Use actual usable space and a material-only payload

A published bed dimension is not always the usable volume for a particular product or loading arrangement. Likewise, a gross vehicle rating includes more than the material being carried. Obtain the appropriate values for your arrangement from the supplier or operator and enter them directly. The calculator does not derive a payload from a vehicle model, axle count or gross rating.

Manufacturer specifications illustrate the distinction: PJ Trailers lists bed dimensions, gross vehicle rating and load capacity separately. Those specifications are not used as presets here. The example below is invented for arithmetic, not a recommendation for that trailer or any other vehicle.

Worked example: 25 yards, with payload reached first

Suppose an order has 25 yd³ at 3,000 lb/yd³. Each planned load has 10 yd³ of usable volume and a separately established material allowance of 12 US short tons. Twelve US tons are 24,000 lb, so the weight allowance corresponds to only 8 yd³ per load.

The order weighs 75,000 lb, or 37.5 US tons. Dividing 25 yd³ by the 8 yd³ ceiling gives 3.125, rounded up to four loads. Filling the earlier loads first gives three loads of 8 yd³ and a final load of 1 yd³. Splitting the order evenly instead gives 6.25 yd³ and 9.375 US tons per load.

At the 8 yd³ planning ceiling, 80% of the entered bed volume and 100% of the entered payload are used. The unused 2 yd³ does not justify adding more of this material: the weight limit is already reached.

What changes when density changes?

Keep the same 25 yd³ order, 10 yd³ space and 12-ton material allowance, but use an illustrative density of 1,000 lb/yd³. Now the payload would allow 24 yd³, so the entered 10 yd³ space governs. The quantity requires three loads: 10, 10 and 5 yd³ if the first two use the full planning ceiling.

The two limits meet at payload divided by usable volume. In this example that density is 2,400 lb/yd³. The result panel shows this threshold so you can see why the governing constraint changes. Actual moisture and packing conditions matter; use a supplier density that describes the material being transported. The bulk density guide explains how to interpret that input.

Trip count and load allocation answer different questions

Rounding up answers how many loads are needed within the entered limits. It does not require every early trip to carry the maximum calculated amount. The equal-split alternative distributes the same total over that count. Both calculations assume identical limits for every trip, a uniform density and material that can be divided freely.

A zero material quantity returns zero loads. Tiny round-off around an exact whole-load boundary is handled so ordinary decimal inputs do not create a spurious extra trip. Supplier selling increments, minimum orders, scheduling, delivery prices and access restrictions are outside this count. Use the delivered material cost calculator for quote rules and the scale ticket worksheet to reconcile completed loads.

Units, sources and privacy

A US short ton is 2,000 lb; a metric tonne is 1,000 kg. Exact unit factors follow the NIST conversion table. The manufacturer reference and unit table were checked September 20, 2026. The limiting-capacity arithmetic and worked examples are original calculations from the entered values.

Entries are calculated in your browser and are not saved or uploaded. For a single quantity conversion, open the main yards-to-tons tool. Browse all material tools or contact contact@cubicyardstotons.org.