National Masonry Modernstone Standard Charcoal

Build a retaining wall that holds its ground, looks sharp, and adds real value to your property for decades.

The Modernstone Retaining Wall Block in Charcoal is National Masonry's flagship wall system and it earns that title. At 440x280x165mm with a sleek split-face finish and bevelled surrounds, it delivers a wall that looks as good in a modern landscape build as it does in a classic garden setting. The deep Charcoal colourway brings a bold, contemporary tone that works across a wide range of outdoor styles and holds its colour long term with high-quality oxide pigments.

The solid concrete tongue and groove interlocking system locks every course together without plastic clips or hardware, giving you a rock-solid wall up to two metres high with a near-vertical profile that maximises every square metre of land behind it. At 280mm deep these blocks carry serious retaining power. Start with a compacted levelling pad, run 100mm subsoil drainage pipe behind the first course, backfill with free-draining gravel, and stack your courses in a running bond pattern. Finish with Modernstone caps and corner blocks for a complete, clean result without cutting a single block. Note that walls over one metre in height require engineering certification.

Features

• Sleek split-face finish with bevelled surrounds for a sharp, consistent look
• Solid concrete tongue and groove interlocking system with no plastic clips required
• Near-vertical wall profile maximises usable space behind the wall
• 280mm block depth delivers serious retaining power for walls up to two metres
• Matching caps and corner blocks available for a fully finished system
• Made in Australia by National Masonry to Australian Standards

Best For Retaining walls, planter boxes, raised veggie gardens, and seating walls in outdoor entertainment areas.

Pickup and Delivery Available for pickup at our North Maclean yard at no cost. Delivery is free when ordering two full pallets or more. Full pallet orders require 48 hours notice. If you need any help, please call us on 1300 136 895. Our team are happy to help.