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Natural Stone Boulders

Verified by manufacturer 12 hours ago

Porphyry Plattens

CED Stone Variant:

Durable natural stone boulders in varied geological types and sizes for structural, landscaping, and water‑feature applications, offering stable form, texture variation and weather resistance.

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Application

Landscape design, water features, streams and ponds, rockeries, Japanese gardens, natural play spaces, seating elements, sculpture bases, boundary definition, habitat creation, and garden focal points.

Description

Natural stone boulders sourced from multiple geological formations including porphyry, granite, quartzite, gabbro and mixed glacial materials. Stones vary in texture, density, colouration and weathering patterns due to natural transport, glaciation and fluvial abrasion processes. Sizes range from small decorative pieces to multi‑tonne structural boulders suitable for load‑bearing or spatial layout functions.

Surface characteristics include smooth, water‑worn forms, slab‑like plattens, blockier quartzite masses and rough, minimally travelled gabbro. Colouration shifts when wet due to mineralogical composition and variable porosity. Suitable for partial submersion or ground‑set installation to achieve stable placement.

Features and benefits:

  • Naturally occurring shapes and mineral compositions provide distinct visual and structural characteristics.
  • Wide size range enables both subtle landscape detailing and large structural focal points.
  • Stable mass and density support use in water features, play areas and seating arrangements.
  • Geological variety allows matching to multiple design palettes and environmental conditions.
  • Surface weathering improves grip for climbing and natural play installations.
  • Flatter porphyry plattens support stepping stone and low‑profile rockery layouts.
  • Colour variation when wet enhances visual integration in rain‑exposed or water‑fed settings.
  • Rounded glacial forms offer ergonomic seating and safe contact surfaces.
  • Blockier quartzites permit more defined structural placement.
  • Gabbro’s rough surfaces and angularity support robust, high‑impact landscape features.

General information

Color

Grey

Beige

Cream

Finish

Textured

Material

Porphyry

Granite

Quartz

Stone

Sandstone

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Shape

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Pr_20_93_52_57 Natural rubble stonesPrimary

CAWS

Q1/352 Natural stone rubble

Specification data - Natural rubble stones

Classification data

Denomination

-

Petrological family

Porphyry.

Colour

Purplish brown and bluish grey.

Origin

Manufacturer's standard.

Guidance for specification option:

Consult manufacturer for details.

Finish

Smooth and flat.

Dimensions

600–200 mm.

Special shape types

Porphyry plattens.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Material

Porphyry
Granite
Quartz
Stone
Sandstone
Limestone

Recyclability

100%

Expected Life

Lifetime

Case studies

Natural History Museum

Natural History Museum