Resources and Wastage

Portland Stone is a valuable natural resource. Our responsibility is to use as much of every extracted block as possible and find suitable uses for the material remaining after cutting and manufacture.

Stone extraction and manufacturing naturally produce offcuts and stone dust. At Albion Stone, these materials are retained and used for walling stone, aggregate or the long term restoration of our underground mines. No Portland Stone produced through our operations is sent to landfill. 

Making better use of every block

Portland Stone is a natural material formed over millions of years. Each block has its own dimensions and geological characteristics, so careful selection and production planning are essential.

Our teams assess the available blocks against project requirements to identify an appropriate stone bed, block size and cutting arrangement. Matching orders carefully to the stone available can improve yield and reduce avoidable offcuts.

Where practical, we also plan production across multiple orders so that material remaining from one item can be used for another. This helps us make more efficient use of each block while continuing to meet the technical and visual requirements of the project.

Reducing waste during manufacture

Blocks are first sawn into slabs before being cut to their finished dimensions. Offcuts can be created at each stage, particularly where projects require irregular shapes, restrictive dimensions or very selective aesthetic criteria.

Modern sawing and CNC machinery allows our production teams to cut stone accurately and plan how finished pieces will be arranged within a slab. Careful scheduling, digital production information and accurate cutting all help improve material yield.

We continually review our extraction and manufacturing processes to identify opportunities to increase block yield and reduce unnecessary offcuts. 

Learn more about our Portland Stone factory.

Finding new uses for stone offcuts

Material that is unsuitable for one project may still be suitable for another product or application.

Offcuts can be processed into smaller items such as walling stone, paving, masonry and stone bricks. Smaller pieces may also be processed into aggregate, ensuring the material continues to have a practical use.

Our Heritage Portland Stone products and stone brick ranges also provide opportunities to use stone with greater geological variation. Rather than rejecting sound stone solely because it contains shells, fossil content or natural markings, these products celebrate the character inherent in Portland Stone.

The Brick from a Stone - Albion Stone and Hutton Stone 2026 explains how stone bricks can be manufactured from blocks of “unloved stone” that might otherwise be overlooked for more visually selective projects. 

Recognising natural variation

Portland Stone is not manufactured to have a completely uniform appearance. Shells, fossil fragments, markings and changes in texture are part of its natural geology.

Rejecting technically sound stone for purely aesthetic reasons can reduce the proportion of an extracted block that is ultimately used. We therefore encourage architects and clients to understand and accept the natural characteristics of the stone wherever they are appropriate for the project.

Heritage Portland Stone was developed to give designers access to a broader geological range, reflecting the natural variation visible in many historic Portland Stone buildings.

Read more about the natural variation found within Portland Stone.

Supporting mine restoration

Some stone remaining from extraction and manufacture is needed for the long term restoration and management of our underground mines.

Suitable material can be returned underground and used as backfill. This provides a useful destination for stone that cannot be manufactured into a finished product while supporting the responsible management of the mine.

Learn more about our underground Portland Stone mines.

Designing to reduce waste

Decisions made during design and specification can have a significant effect on stone yield.

Project teams can help reduce unnecessary waste by:

• Discussing proposed stone sizes early in the design process
• Selecting dimensions that work efficiently with available blocks
• Avoiding unnecessarily restrictive visual selection
• Allowing natural geological variation where appropriate
• Repeating sizes and profiles where the design permits
• Considering smaller products for suitable areas
• Working with our technical team before finalising the stone schedule

Early collaboration gives our estimating and production teams an opportunity to identify more efficient sizes, suitable stone beds and potential ways to improve yield.

The Mine Report demonstrates that the dimensions and availability of blocks vary between Portland Stone beds, reinforcing the importance of matching project requirements with suitable block characteristics. 

Contact Albion Stone to discuss stone selection, dimensions and efficient production planning.

Responsible use of Portland Stone

Reducing waste is not simply a matter of disposing of offcuts responsibly. It begins with extracting carefully, selecting suitable blocks and planning how the stone will be cut.

By improving yield, accepting appropriate geological variation and finding alternative applications for offcuts, Albion Stone aims to make responsible use of every block extracted from its Portland mines.

Material that cannot become a finished stone product is used for aggregate or mine restoration, ensuring that none of the Portland Stone produced through our operations is sent to landfill.

Learn more about why Albion Stone is the environmental choice.