Concrete is traditional cement mixed with sand, gravel and water. The mixture is highly resistant to pressure, but weaker in terms of torque and other forms of impact. This may be improved by mixing in fibres during the moulding process (fibre-reinforced concrete) to achieve greater flexibility and reduce dimensions. Concrete can be additionally reinforced with steel rods.

The products are made from fibre-reinforced concrete that consists only of oven-dried quarts sand and cement, frequently reinforced by a stainless-steel frame. The fine structure of the quarts sand minimise porousness, sealing off the surface to reduce the impact of frost.

Unlike wood, fibre-reinforced concrete does not absorb moisture.

The material is heavy, strong and available in dimensions ranging from a thickness of 20mm upwards. It fades minimally in sunlight, it is unaffected by wind and weather, maintenance free and easy to clean (ordinary cleaning agents, high-pressure cleaners on a low setting).

Minor subsidence cracks may occur when using concrete. These do not impact strength and can be repaired using concrete render.

At the end of its lifecycle concrete can be used as building filler.

Pigments may be mixed in prior to moulding for different colour effects. Out-siders concrete products are proofed using a product with 5-year manufacturers’ guarantee.


Concrete is cast in a mold made ​​of wood, fiberglass or rubber - depending on the desired surface where the rubber form causes the most smooth and homogeneous surface.
After the concrete is poured into the mold it must be vibrated to compress the material before drying for approx. one day - and then the unit can be de-molded. The cast product must harden for approx. one month before it gains its full strength.


out-sider can supply Jello made from a choice of fibre or steel-reinforced concrete and Starfish made from fibre-reinforced concrete.