NBS Source
List your products

Designed for external cladding, but is suitable for a wide range of applications. Consult manufacturer for further details.


Lightweight natural stone cladding with ventilated rainscreen system. Combines a thin layer of natural stone with a fire-resistant composite board reinforcement through an exclusive bonding process.

Features and benefits:

  • Available in a wide range of natural and engineered stone types, and various different finishes.
  • Dimensionally stable and strong - ensuring the panels are suitable for high wind
  • Good fire and mechanical performance.
  • Weighs approximately 65% less than traditional stone cladding, which helps with handling, installation and structural costs.
  • Suitable for use on buildings over 18 m in height.
  • Performs well in hot, cold, frosty, and wet weather conditions.
  • The backing board is inorganic, negating any biological or pest infestation.
  • Helps to reduce acoustic and thermal transmission.
  • Rigid, which ensures no bowing or warping.
  • Large format panels reduce the amount of joints, and therefore help to improve overall aesthetics.
  • Manufactured in the UK.
  • BREEAM potential - consult manufacturer for details.


Designed for external cladding, but is suitable for a wide range of applications. Consult manufacturer for further details.

General information

Uniclass 2015

Pr_25_71_14_19 Composite stone panelsPrimary


H11/110 Curtain walling

H20/10 Sheet cladding

H20/150 Sheet cladding

H51/110 Cladding to

Specification data - Composite stone panels

Product Reference



Consult manufacturer for details and insert requirements.

Panel facings

Ceramic - Engineered Stone

Dekton - Engineered Stone

Granite - Natural Stone

Limestone - Natural Stone

Marble - Natural Stone

Porcelain - Engineered Stone

Quartz - Engineered Stone

Surface/ Texture

Bush hammered

Random, coarse textured finish.


Smooth, matt finish.

Laser/ Waterjet

Detailed patterns can be engraved, consult manufacturer for details.

Leather/ Brush/ Satin

Textured/ ridged finish.


CNC machining of different textures, or 3D effects possible. Consult manufacturer for details.


Smooth, high gloss.


Flat but textured.

Scored/ Grooved

Uses saw blades to create a groove throughout.


Fine textile effect.


For granite, limestone and marble only. Surface forms small chips and crystals.


Uni-directional textile finish combined with brushing to produce a wood-like appearance.


See manufacturer's literature for available colours for each type, and insert requirements.

Standard product features

Panel size:

2.65 x 1.25 m.


30 mm (overall); 15 mm (stone layer).


48 kg/m².

Support structure:

Aluminium sub-frame, suitable for both internal and external structures. Panels are cut to size, then supporting fixings and hangers are attached and hung onto the rail system.

Fire classification:

Euroclass A2-s1-d0.

Impact testing:

  • Can withstand 50 kg soft body/ 0.5 kg hard body.
  • Serviceability class: 1.
  • Impact safety: Negligible risk.

Product Options

Stone type:

Others may be available. Each stone type is available in a range of variants; consult manufacturer's literature for details and insert requirements.