Rock Armour

At E. Krag Raw Materials Ltd., we offer a wide range of quarry stones and natural stones for coastal protection and water management.

Coastal protection is a crucial factor in securing cities and coastal landscapes against flooding and erosion. Our range is extensive, covering all kinds of needs.

We stock CP 63-180 mm, LMB 10-60 kg, HMB 60-300 kg, and HMB 300-1000 kg quarry stones according to standard EN 13383-1, but we can supply all sizes in larger quantities directly from quarries.

We also offer natural stones for coastal protection, with several gradings ranging from 200 to 1500mm depending on requirements.

Our products are ideal for securing coastal landscapes and watercourses. Additionally, we supply related products for coastal protection, such as core stones, filter gravel, stabilizing gravel, and fill sand, sourced from our local gravel pits of the highest quality.

We can also supply grey or red Armor stones - Call us for more information.​


We offer quarry stones in the following sizes:

  • CP 45-125 mm*
  • CP 63-180 mm
  • CP 90-250 mm*
  • LMB 5-40 kg*
  • LMB 10-60 kg
  • LMB 60-300 kg
  • HMB 300-1000 kg

*Not in stock - available directly from the quarry.

We offer natural stones in the following sizes:

  • 400-700 mm
  • 600-1200 mm
  • 500-1500 mm
  • Other sizes are sorted by arrangement

Odoo - Sample 1 for three columns