Dumbbell (damru) cabro blocks in yellow, charcoal, red and grey diagonal stripes on a yard display panel
Dumbbell (Damru) cabro
Also called Damru, Bone, Dog-bone, I-block
A bone-shaped block with a strong interlock across its narrow waist. Bold in stripes and reads well from a distance.
Best for
- Driveways
- Parking bays
- Commercial frontages that want a visible pattern
Laying note
Lay in running rows with the waist offset; alternate colours by row for the striped look in the photos.
Price per m²
Priced per m² by thickness (50mm, 60mm, 80mm) and colour — grey is the standard, coloured costs more. Prices move with cement and pigment costs, so we send today's list rather than print a stale one.
Prices are per m² supply only, excluding transport and laying. Blocks are counted at roughly 50 per m².
- Blocks per m²
- Roughly 45–50. Budget 50, plus 5–10% for cuts and breakage.
- Lead time
- Grey, red and charcoal are usually available for delivery within 1–2 working days. Other colours and large orders take 5–7 days from deposit.
- Standard
- Benchmark: KS 827:2003 (KEBS) precast concrete paving blocks.
- Colour shades
- Vary slightly between batches. We mix pallets during laying so the variation blends.
Not sure about thickness? Read the 50 vs 60 vs 80mm guide. Want it laid? See what our laying quote includes.