Anchor Diamond® Segmental Retaining Wall Blocks

Anchor Diamond® Segmental Retaining Wall Blocks


A mortarless dry build segmental retaining wall system consisting of self-finished concrete blocks with the appearance of riven faced stone for landscape retaining walls.

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Anchor Diamond® is a dry build retaining wall system designed to be constructed without mortar or pins to create retaining walls up to 1.2 m high (Diamond 30)/ 0.9 m high (Diamond 25) where there are no slopes above or below the wall and no surcharge. Anchor Diamond® blocks can be used to construct taller walls with the inclusion of geogrid reinforcement when designed by a suitably qualified and competent engineer.

The blocks incorporate a patented rear lip which automatically provides a uniform setback (10.6° face batter) and perfect alignment, thus speeding installation. The system is flexible enough to shift and expand with ground movements around the blocks and can be laid to internal or external radius:

Minimum radius:

  • Outside curve (to back of block on top course): Diamond 30: 0.9 m; Diamond 25: 1.2 m.
  • Inside curve (to back of block on base course): Diamond 30: 2.7 m; Diamond 25: 2.4 m.

Please consult AG technical literature for further details.

General information


Straight cut/ textured

Uniclass 2015

Pr_20_93_71_15 Concrete interlocking blocksPrimary


D41/310 Drystack interlocking masonry

Specification data - Concrete interlocking blocks

Product Reference

Anchor Diamond® Segmental Retaining Wall Block


Diamond 25

Diamond 30






Special shapes

Anchor Shortcut Cap

Length: 200 mm; depth: 330 mm; height: 75 mm (length is 175 mm long on short side). Weight (approx) 10.3 kg.

Anchor Diamond® Corner

Length: 435 mm; depth: 218 mm; height: 150 mm. Weight (approx): 29.5 kg.



Geogrid reinforcement

Required for walls in excess of 1200 mm high (Diamond 30) or 900 mm high (Diamond 25).


Exterior grade concrete adhesive.

Standard product features

Size (w x h x d):

  • Diamond 25: 435 x 150 x 250 mm.
  • Diamond 30: 435 x 150 x 300 mm.

Weight (approx):

  • Diamond 25: 23 kg.
  • Diamond 30: 26 kg.

Compressive strength:

24 N/mm².

Absorption rate (maximum):


Face coverage (approx.):

15.4 units/m².




Straight cut/ textured.


  • Energy use: 100% renewable energy.
  • Water used: 100% rain water harvesting.
  • Recyclability: 100% of this product can be recycled.
  • Manufacturing location: Produced in the UK using responsibly sourced materials.
  • Waste wood and plastic: 100% recycled.
  • Carbon footprint: AG have a new state-of-the-art wash­ing plant which enables AG to produce walling from 100% recycled waste aggregate.
  • BREEAM rating: A+, in accordance with the Green Guide to specification.

CE marking:

CE marked; Certificate 14B/1-7-13, attestation Level 4 CPR (2011) Annex V.

Product Options


Consult with AG for availability of colours and to obtain samples.


  • Geogrid reinforcement: Required for walls in excess of 1200 mm high (Diamond 30) or 900 mm high (Diamond 25). Consult AG's technical department.
  • Montagefix: Caps and partial units should be fixed with a good quality exterior grade concrete adhesive such as Montagefix (available from AG).

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