Permacrib timber crib is a gravity retaining wall system made from PEFC certified timber, using interlocking header and stretcher components to form a cage filled with graded stone. Designed for embankment retention, it is suitable for projects requiring a natural appearance and is available in a range of sizes for economic design.

  • Timber crib wall system for retaining earth using stone infill

  • Made from PEFC certified timber, pressure treated for durability

  • Design life of 60 years, BBA certified

  • Quick to build and adaptable to curves and corners

  • Eight model sizes with header sizes from 600mm to 1650mm

  • Manufactured in the UK to approved QA standards

  • Standard lean back of 1H:4V (76 degrees)

Applications

  • Retaining walls for embankment cuts

  • Residential landscaping

  • Commercial developments

  • Projects where aesthetics are important

  • Sites with varying foundation or wall levels

Dimensions

Header sizes from 600 to 1650mm

Header stacks typically 750mm apart

Course heights in 161mm increments

Performance

Design life 60 years

Walls up to 10m high possible with double or triple depth structures

Materials

PEFC certified timber

Graded stone infill (75-40mm clean)

Installation

Timber cage assembled on site and filled with stone

Efficient for sites with level variations

Manufacture

Machined and pressure treated in the UK

Accreditations

BBA certified

Pressure treated to BS8417:2011 using High Concentration Copper Azole

Sustainability

Timber is a renewable material

PEFC certification for responsible sourcing