Skip to content
Answer

How much does Giallo Siena marble weigh per square metre?

How much, and how heavy

A slab of Giallo Siena marble on the tilting frame
A slab of Giallo Siena marble on the tilting frame

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. These are nominal thicknesses, and calibration takes one to two millimetres off, so a weighed slab reads slightly below the calculated figure.

The figures

ThicknessNominal weight per m²Source
15 mm40.65 kg/m²Derived from the published apparent density
18 mm48.78 kg/m²Derived from the published apparent density
20 mm54.20 kg/m²Derived from the published apparent density
Apparent density2710 kg/m³EN 1936-07, both published sources agree

Why this stone behaves this way

The weight follows from the thickness and the density, and the density is published to EN 1936-07 by two sources that agree on it. The only thing between that number and a scale is calibration, which removes material and is why a nominal figure reads light.

What these figures are, and what they are not These are calculated from a published density, not weighed figures for a particular slab. The calculator on this site does the same arithmetic and lets you set the allowance.

Where these figures come from

  • S1 granitalsiena.com — Giallo Siena marble technical sheet (EN standard test values; Politecnico di Torino marble laboratory)
  • S6 StoneContact — Giallo Siena Unito and Broccatello di Siena entries, carrying Università di Pisa - Politecnico di Torino test values for the material
  • S16 the architect complete specification guide to marble (bookmatching, edge profiles, calibration, finish behaviour)

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.

Can Giallo Siena marble be cut thinner than 20 mm?

Yes.

Sizes questions

More on this subject

This answer sits on the How much, and how heavy page, with the rest of the questions about it.

Calculator

Ask for a price

A thickness, a format, a finish, a quantity and a destination will get you a quotation for Giallo Siena marble.

How much does Giallo Siena marble weigh per square metre?