Marmox Toilet Boards & Boxes

Pre-Formed, Tile-Ready Concealed Toilet Enclosures

Marmox Toilet Boxes are pre-formed, waterproof solutions designed for a quick boxing of concealed cisterns, pipework, and services behind wall-hung toilets. Manufactured using an extruded polystyrene (XPS) core with reinforced cementitious coatings, they provide a rigid, tile-ready structure that simplifies bathroom construction. Toilet board is a 20mm predrilled board that can be used to conceal cistern, providing a rigid substrate for tiling.

Designed for modern Australian bathrooms, Marmox Toilet Boxes deliver clean finishes, reduced installation time, and reliable long-term waterproofing.

Key Features

Pre-formed structure for wall-hung toilet installations.

100% waterproof and vapour resistant.

Tile-ready cementitious surface.

Unique honeycomb finish, which increase adhesion to tile adhesives.

Eliminates the need for timber framing , and sheeting.

Light weight and easy to handle.

High compressive strength for tiled finishes.

Thermally insulating XPS core.

Compatible with Australian waterproofing systems.

Why Choose Marmox Toilet Boards & Boxes?

Faster installation

Pre-formed design reduces on-site framing and build time.

Built-in waterproofing

Closed-cell XPS construction prevents moisture ingress and mould.

Clean, professional finish

Creates precise edges and a seamless tiled appearance.

Reliable long-term performance

Delivers durable results in high-use bathroom environments.

Available Sizes

Product	Size
Concealed Toilet Board	1200 mm × 1550 mm × 20 mm (ready to tile)
Concealed Frame Toilet Box Kit	600 mm × 1250 mm ×20mm

Technical Data

Core material: Extruded polystyrene (XPS).

Facing: Polymer-modified cement coating reinforced with fibreglass mesh.

Water absorption: Negligible.

Vapour resistance: High.

Surface: Tile-ready cementitious coating.

Application areas: Wall-hung toilets and bathroom service enclosures.

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Installation

Position toilet box according to cistern and plumbing layout.

Fix using approved Marmox adhesives or mechanical fixings where required.

Reinforce all joints using fibre glass tape and a layer of tile adhesive.

Tile directly onto the cementitious surface.

Integrates with other Marmox systems for a complete waterproof solution.

Multiboards

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Multiboards

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