Maxi-Brick Rockface Mould


285mm x 140mm x 90mm Mould for making a hollow maxi-brick.

SKU: MB-3 Categories: ,


This mould is used for casting concrete Mould for making a hollow maxi-brick with one rock face.
Brick Size: 285mm x 140mm x 90mm.

Please view the video below for more information about our maxibrick mould. 

The rock face Maxi Brick cast size is 285mm x 140mm x 90mm (height). This is an extremely versatile mould for making building bricks.
Clips together with tabs that goes all-around forming a box. Twin cavities saves material and reduces weight. This helps the brick layer during the building process so they can actually lift the brick with one hand. This means the builder doesn’t have to put his trovel down when they’re lining bricks and this speeds the building process.

One of the faces on the the mold has a rock texture. That rock texture makes the wall appear to be rock cladded. Oxide can be used to change the colour of the concrete.

Casting can be done using a damp mix whereby careful tanking of the concrete must be done when you fill it up. Stamp it down until it is full and then de-mold immediately. That’s for making rough cast bricks. You could use a wet casting where it gets a finer casting, but then the concrete must remain in the mold until it is set and strong enough for de-molding. This will produce a finer stone.

Maxi bricks are approved for single skin walls if building a single-story building. Double storey buildings require a double layered wall.

When using inverted you can use it for retaining walls. The cavities could be used as planters, whereby you have to punch a hole through the bottom for drainage.Then the next brick can be placed on top of this brick at a batter angle for retaining purposes.

Maxi Brick Instructions

  • Cut off tabs with a knife.
  • Slowly move sides of mould up and down to stress the Polypropylene hinges. (if this is done, the mould should last a long time).
  • Assemble using tabs to lock the mould together.
  • Coat entire mould with a thin layer of release agent (especially around the cavity forms).
  • Cast mould to the brim with concrete (wet mix but not too wet which will cause excessive shrinkage, especially around the cavity forms).
  • Agitate to remove any bubbles and allow brick to set.
  • When concrete has set, invert and remove tabs to disassemble. Now de-mould.
  • If a damp mix is used so that de-moulding can take place immediately, ensure that mould is not damaged or distorted when tamping down the mix in the mould.
  • Keep brick moist until cured.

For general information about our moulds please view the video below:


Additional information

Weight 0.5 kg
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