Large Blue Slate

40mm Slate


Beautiful complementary, subtle tones in these larger pieces of slate add a dramatic and contemporary edge to your garden or patio. They’ll look dusky when they’re dry and glossy in the rain. Perfect for water features and general ground coverage.

It's natural durability and attractive appearance makes this slate a perfect material for decorative landscaping projects.


Where can Large Blue Slate be used?

Fish friendly

Green Slate Mulch is fish friendly and ideal for residential ponds and water features.


Cover your borders with Green Slate Mulch to complement a colourful, vibrant garden.


Helps improve the soil quality around plants and helps to suppress weeds.

Why use Large Blue Slate?

Delivery and packaging


Bulk tipper vehicle


Bulk bags

Large Blue Slate contact

Loose / bulk aggregates


Nationwide network

UK Coverage

Tarmac is a national network of localised businesses, offering construction material supply. In addition, our building products division has a nationwide network of 19 production and distribution plants, including co-located plants with our internal quarries, which enables us to provide an efficient service across the UK.

Continual improvement

We are continually investing in new plant, manufacturing and bagging technology to ensure quality consistency and our commitment to the ‘Ultimate Manufacturing’ framework empowers us to deliver continuous operational improvement.

Promotional support

Marketing materials

Our products aren’t just easy to use, they’re easy to sell. We offer our stockists a full range of high impact support materials from point of sale materials, to yard banners and posters, not only that, our products are available in attractive, durable, rip resistant poly packaging. 

Website ready

We understand that web activity is more important than ever with many consumers now browsing your website before buying. We have a descriptive text for each of our product range, along with a library of images for you to upload to your website to enhance product listings. 


Download files individually or add multiple files to a zip folder.