Why distance sets the price of stone

Stone is heavy and cheap for its weight, so the cost of moving it can matter as much as the cost of making it. That is why two quotes for the same stone can differ, and why a price is only useful once you know where it applies.

The price is usually at the gate

In its crushed stone Minerals Yearbook, the USGS publishes prices that are free on board at the plant. They cover all the costs of mining, processing, moving stone around the plant, overhead and profit, and they leave out the cost of transport from the plant or yard to the customer.

In the UK, the British Geological Survey values 190 million tonnes of primary aggregates sold in 2017 at £2,258 million on an ex-quarry basis. That works out at about £11.90 a tonne, by our arithmetic. It says transport is a key element of the delivered price.

Most stone goes by road

The USGS asked US producers how their stone leaves the quarry or plant. Of the answers about stone that was shipped, 78% said by truck, 5% by rail and 3% by waterway. Some stone is never moved: about 42.2 million tonnes were assumed to be used on site.

Distribution yards supplied by rail or water sit near large cities, and the USGS says they cut the distance trucks must travel and so reduce transport costs. The USGS also names the high cost of transport, along with the wide spread of deposits and quarries, as the reason trade across borders is small and mostly local. Imports and exports were slightly more than 1% of US consumption in 2018.

Why cities pay more

The USGS expects the price pressure in 2026 to be strongest in and near large cities. It points to shortages from zoning, quarries moving away from population centres, and higher fuel costs. Each of those lengthens the trip from quarry to site. Our note on stone prices since 2021 has the numbers.

Comparing quotes

Ask whether a price is at the quarry gate or delivered to your site. A lower gate price can lose its advantage over a longer haul, and the nearest suitable quarry can work out cheaper once delivery is counted.

These sources describe the US and the UK. We have not found published delivery-cost figures for Nigeria, so speak to us for a quote delivered to your site.