Frequently asked questions

Yes. We supply slabs, treads, setts, kerbs, cladding and cut-to-size stone to projects across Europe, with declarations of performance and CE marking.

Thirty-two: four Bohus granites, Älvdalen quartzite, further granites, gneiss and diabase, Ekeberg and Brännlyckan marble, limestone from Jämtland, Borghamn, Omberg, Gotland and Öland, and Orsa sandstone.

Yes, for architects, clients and contractors. Request samples.

Bohus granite is quarried in Bohuslän on Sweden's west coast. It is among the youngest granites in Sweden, fine to medium grained, and comes in grey and red.

Bohus Grey Tossene, Bohus Grey Silver, Bohus Red Skarstad and Bohus Red Broberg, each in a wide range of finishes.

No, it is a quartzite, a metamorphosed sandstone. In construction it is classed as a silicate stone with properties close to granite.

In 25 cycles in salt solution to the German TL Pflaster StB 06 method, mass loss was 0.01 % with no visible change. The report is available on request.

Yes, it is described as radon free and is unaffected by temperature swings and air pollution.

Many public clients require performance-based wording. Specify measurable values (flexural strength LFV, frost, water absorption, slip) and appearance by reference sample; then any stone meeting them can be offered.

Under the EU Construction Products Regulation, natural stone covered by a harmonised standard must carry CE marking and a declaration of performance (DoP) stating the declared values.

Lower expected value, a statistical lower bound used for structural design. It is lower than the mean and the figure to use for sizing.

Swedish hard rocks are old, dense and even. Many varieties combine low water absorption with high strength, which suits frost, de-icing salt and heavy wear.

No. Sweden also produces quartzite, gneiss, diabase, dolomitic and serpentine marble, several limestones and sandstone.

Natural stone is not fired, lasts for centuries and can be reused. Environmental data for individual stones is available on request.

Zurface Sweden AB in Österhaninge near Stockholm. Phone +46 10 207 17 07, email mail@zurface.se.