Home > Companies > Colinwell Masonry > AB Corner Block

Allan Block retaining wall corner block, available in both right- and left-handed variations.

Manufactured from a mixture of aggregates (65% recycled secondary aggregate content) and cement.

Features and benefits:

  • Easily constructed in conjunction with the Allan Block Retaining Wall System - consult manufacturer for details.
  • Offers high performance, quality, and lasting value.
  • Expected lifespan of 120 years (if designed and built in accordance with British Board of Agrément (BBA), Roads and Bridges).
  • Anti-climb, chamfered edge.
  • Cost-effective and versatile.
  • Durable and maintenance-free.
  • Freeze-thaw resistance.
  • High strength.
  • Efflorescence-free.


Suitable for:

  • All types of road and rail infrastructure projects that require approval by the Highways Agency (the product holds a BBA Roads and Bridges certificate).
  • Large commercial and residential walls.
  • Low gravity (unreinforced) walls.

CE-marked and manufactured in accordance with BS EN 771-3 and BS 5628-1, , ISO 9001 and ISO 14001.

Standard product features

Size (h x w x d):

200 x 200 x 400 mm.


Split-face texture.


26 kg.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-80-50/300 Aggregate concrete blocks

Product specification

An important note about specifying



Colinwell Masonry


+44 (0)28 9061 8145

Product reference

[AB Corner Block, right-hand]
[AB Corner Block, left-hand]


[Abbey blend]
[Cinder blend]
[Limestone blend]
[Pewter blend]
[Slate blend]
[Yorkstone blend]

Manufacturer details

37 Colinglen Road,
Co Antrim, BT17 0LP
Tel +44 (0)28 9061 8145
Fax +44 (0)28 9062 4240
NBS Plus
NBS National BIM Library