Random Tumbled Building Stone – Silver/Grey Granite

Our silver/grey granite is quarried from our De Lank Quarry near Bodmin in Cornwall. It is noted for its unique silver-grey colour and its even-grained texture. De Lank granite is renowned for quality and durability: it has been providing building stone for prestigious architectural projects and landmark buildings work since 1882.


Our De Lank tumbled random building stone is identical to our silver-grey granite random building stone, other than having been put through the tumbling process. This process softens the facing and rounds the edges of the granite stone blocks. Tumbled stone has a naturally weathered finish that works well for restoration and renovation projects, where the new granite needs to blend in with historic stone, or to achieve an aged / time-worn appearance.

De Lank granite is synonymous with Cornish walling stone. When quarried it splits naturally into large blocks, which means we can also craft it into masonry stone such as quoins and lintels. Its durability also lends itself to commercial paving, cobbles and setts, as well as garden walling and retaining walls for ponds and pools.

For more information or to place an order, please contact Ben at De Lank Quarry on 01208 850217 or ben@delankquarry.co.uk

One bulk bag of random building stone cropped to the standard 100mm (4 inch) bed width will provide enough material for 4 to 4.5 square metres of facing stone. A wastage allowance of 10% should always be calculated into your figures when ordering.


What is random tumbled building stone?

Our granite random tumbled building stone is cropped to a 100mm (4 inch) bed width as standard, providing at least one usable face per piece. (‘Bed width’ is the width of your footing). Heights and lengths are naturally random, hence its name – although you might also hear it called facing stone, random cropped building stone or random rubble in the trade.

After the stone has been cropped to size it is then put through a tumbling process which softens the edges and faces. Using tumbled building stone helps to create a classic time worn effect.

One bulk bag of random building stone cropped to the standard 100mm (4 inch) bed width will provide enough material for 4 to 4.5 square metres of facing stone. A wastage allowance of 10% should always be calculated into your figures when ordering.

please note the bulk bags are not weighed but are approximatly 900kgs

The natural variation in the shape and colour of real stone means that every piece of sandstone is unique. As such, working with random building stone usually requires the skills of a stone mason or appropriately experienced builder. It’s a technique suitable for house construction and commercial / public buildings, restoration and renovation projects, boundary or retaining walls, dry stone walling, garden features and any kind of building project that involves the use of natural stone.

What if I need my stone cut differently?

If you need a non-standard bed width, our in-house stone cutting service can crop the stone accordingly. For instance, we regularly crop to 150mm (6 inch) and 225mm (9 inch) bed widths, which will provide you with a larger stone in all dimensions. Whatever bed width you specify, the heights and lengths of each piece will remain random.

Stone can also be provided “as dug”. This is stone dug straight from the quarry, without cropping to a specific bed width, and is popular when building dry stone walls.

We can also provide corner stones as required. These are made by cropping the random tumbled building stone as normal, then turning each piece of stone at right angles and cropping once more to make a right angled corner. They will have random heights and lengths and are ideal for chimneys, reveals, pillars etc.

If you need less than a bulk bag of random tumbled building stone, a different bed width or have a delivery address with tricky or limited access, please do give us a call – we’ll be happy to help.

Building and walling materials to match

De Lank silver-grey granite is also available for commercial paving, rainscreen and ashlar panels, cobbles and setts, quoins and lintels.

Many of our own products can be successfully combined with complementary ranges – for example, using lighter coloured stone for cills and coping stones. If you would like advice, examples or ideas about combining stone ranges, do give us a call – or even better, pop in to our showroom.

For natural landscaping we provide boulders and rockery stones from all our UK quarries. We can provide a range of granite rocks from our De Lank quarry, from small rockery stones to 12 tonne boulders.

Different uses for random tumbled building stone

Here are a few applications for random tumbled building and walling stone:

  • Facing stone for new builds
  • Building restoration and renovation
  • Garden walls
  • Dwarf walls
  • Dry stone walling
  • Fireplaces
  • Chimneys
  • Gabion Baskets
  • Pillars
  • Wishing Wells
  • Feature walls
  • Retaining walls
An important note about natural stone

Whilst we have done our utmost to ensure the stone and colours displayed on our website are accurate, they are to be used as a guide only. Because stone is a natural product, texture and colour will vary from piece to piece. As we work through the quarry, seams will yield slightly different coloured and shaped stones.

The building technique, quantity, colour and type of mortar used will all impact on the the look of the finished product. Please bear this in mind when ordering stone products. For larger projects or any projects where a specific look is required, we recommend that test panels are built.

We’ve provided a few tips on how to build a stone wall, and if you need any advice, give us a call.

Price per bulk bag


Cobblestones – Silver/Grey Granite

Price per Sq metre
From £38.00 ex VAT
From £45.60 inc VAT