Welsh Blue Plum Slate Chippings | 40mm Crushed Slate for Borders

How much will I need?

As a guide, one tonne covers roughly 10–12m² at a depth of 50mm (2 inches). That means a 750kg bag covers around 7.5–9m², a 500kg bag around 5–6m², and each 25kg handy bag roughly 0.25–0.3m². Measure your area, then round up rather than down so you're not left short.

Can I walk or drive on it?

This larger grade is best kept for areas that are looked at rather than walked on — borders, beds, seating surrounds and water features. For paths or driveways, choose a 20mm grade or smaller.

Do I need a weed membrane?

We'd recommend one. Laying a permeable landscape membrane underneath helps stop weeds coming through and keeps the stone from mixing into the soil, so it stays cleaner and lasts longer.

Which bag size should I choose?

Bulk bags are the most economical way to buy for larger areas. 25kg handy bags (where offered) are ideal for smaller jobs, or if access is tight and the stone needs carrying through the house or over a wall.

Will it look exactly like the photos?

This is a natural stone, so colours and tones vary slightly between batches and look richer when wet. If you're matching existing gravel or slate, get in touch before ordering.

What if my order arrives damaged or isn't right?

Email sales@oakandoutdoor.co.uk within 48 hours with your order number and photographs. We'll liaise with Dandy's and arrange a prompt resolution.