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Answer

Can Giallo Siena marble be cut thinner than 20 mm?

Sizes and formats, and what is held

A slab of Giallo Siena marble on the tilting frame, at full size
A slab of Giallo Siena marble on the tilting frame, at full size

Yes. The published minimum cut thickness for Giallo Siena marble is 10 mm, and it is reached after vacuum resin treatment. In the wider trade the thicknesses most commonly supplied are 18, 20 and 30 mm; we hold 15, 18 and 20 mm.

The figures

ThicknessStatusSource
10 mm minimumPublished minimum after vacuum resin treatmentPublished block and slab characteristics
15 mmHeld as our standard stockOur own stock statement
18 mmHeld as our standard stockOur own stock statement
20 mmHeld as our standard stockOur own stock statement
30 mmCommonly supplied in the wider tradeTrade listings, indicative only

Why this stone behaves this way

The stone is a brecciated calcitic marble, and blocks are recommended to undergo vacuum resin treatment before sawing so the small cracks and holes are closed. That treatment is what makes a thin cut possible, and it is why the published minimum is stated after treatment rather than as a property of the rock.

What these figures are, and what they are not A minimum cut thickness is a property of the material after treatment. It is not a statement that a 10 mm panel is the right product for a given job — substrate, span and handling decide that.

Where these figures come from

  • S1 granitalsiena.com — Giallo Siena marble technical sheet (EN standard test values; Politecnico di Torino marble laboratory)
  • S5 Trade listings — indicative only, never to be published as our own stock

Where to go next

On the same subject

More questions about Giallo Siena marble

What sizes and thicknesses of Giallo Siena marble are there?

We hold 15, 18 and 20 mm as standard stock.

How much does Giallo Siena marble weigh per square metre?

40.65 kg per square metre at 15 mm, 48.78 kg at 18 mm and 54.20 kg at 20 mm, at the published apparent density of 2710 kg/m³.

Sizes questions

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Sizes and formats

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Can Giallo Siena marble be cut thinner than 20 mm?