How to Make Fake Rock

There are several techniques to make bogus rock or faux rock and boulders all yielding great results.

The approach you decide on to make bogus rock is generally primarily based on what is the cheapest and most easily readily available filler product you have readily available on site. Really real looking faux rocks or boulders can be created applying any of the adhering to filler resources.

Developing Products and Approaches

· Developing rubble such as 2nd hand bricks or crushed concrete

· Recycled true rocks

· Polystyrene

Alternate methods to make bogus rock contain applying some way of giving an approximate shape to the concluded rock in advance of the application of the mortar.

· Chicken wire bent to shape is broadly employed for the lesser rocks

· Cardboard containers of all dimensions can be slice to shape

· Rebar and expanded metallic

For repetition of the identical style the use of moulds is advisable.

· Casting from a mould

The product and approach you use to make bogus rock will be the a person that you contemplate to be the speediest and cheapest to give you the most effective concluded final result. The time the career requires is primarily based on how a great deal detail is necessary. The far more definition and complete you give to every single rock the far more time is involved.

To make bogus rock of greater proportions such as back garden boulders, a smoother, reduced detail complete seems to be most effective while lesser attractive rocks involve far more work and resources.

A back garden landscaping career will normally involve the use of several of these different finishes to give the necessary normal search. The far more methods you are skilled in applying to make bogus rock the far better the concluded high quality of work you will be able of generating.

Stable Fill Technique

While this is quite possibly the slowest and most pricey approach to make bogus rock it is nevertheless the most broadly employed due to the availability of employed constructing product on most work opportunities. Not becoming of hollow construction it also offers the closest seem and come to feel to normal rock.

The resources employed in this form of construction are:

Developing rubble.

This is generally no cost or is currently on site prepared to be disposed of. It is essential to hose it down in advance of use to guarantee right bonding.

Next hand bricks and concrete blocks

Even if you have to buy these it is nevertheless cheaper than applying concrete. Complicated shapes such as waterfalls are also less difficult to construct due to the regularity of their shape.


This is a waste product employed for packing and easily readily available no cost from your neighborhood outlets. It can be slice to shape extremely effortlessly and lowers the body weight of the concluded faux rock. It retains the shape of the rock and does not slump with the body weight of the mortar, not like some of the other filler resources.

Recycled rock and other normal resources

These are normally on site and uncomplicated to use giving extremely normal shapes. Clean in advance of use.

· If the product becoming employed is in modest pieces it can be placed in plastic luggage and stacked for relieve of assembly.

· Lower open and expose the filler product

· Implement two coats of the acrylic polymer stabilizer mix. This need to be thrown on applying a brush and is designed to guarantee the framework is rigid in advance of implementing the finishing mortar mix.

· Implement two 40mm coats of mortar mix.

· End as with other strategies.

This form of rock is extremely uncomplicated to construct. It also makes use of plain concrete and a fundamental mortar mix for the remaining shaping to more save any troubles. Very first construct a modest concrete foundation for the rock, then construct up the shape with some of the rubble, then far more concrete, then far more rubble and so on right up until you have the rough concluded shape.

To make bogus rock with this approach it is a great strategy to be doing several rocks at the identical time. While allowing for a person good deal of concrete to set up you can be doing the job on one more rock. As soon as the rough shape is concluded and set up, the application of mortar can start.

Use a throwing action for the mortar as it adheres far better than merely trowelling it on. Added layers of mortar also adhere far better to the rough texture still left by the throwing action. Commence the finishing coats from the best and work your way down. If you are doing the job on two rock shapes facet by facet be thorough to emphasise the be part of strains between the rocks. Definition is extremely significant with these seams to give the rocks a normal look.

Hollow Rock Development Approaches

Chicken Wire

This approach is of use for lesser hollow rocks.

· Lower and wrap the chicken wire to the rough shape of the concluded rock.

· Bend any sharp ends of the wire inwards with a pair of pliers.

· Now cover the wire with some newspaper soaked in fifty/fifty diluted white woodworking glue and allow to dry.

· Include the wire with several layers of plaster of paris bandage which has been briefly soaked in drinking water and allow to dry.

· Adorn with diluted acrylic paint mixed fifty/fifty with sand to give a rock like texture.

Re-bar and Expanded Metallic Development

This is the most broadly employed approach to make bogus rock which is hollow. Applying this approach rocks can be shaped to cover taps, pool pumps and other products. Thanks to its capability to be effortlessly shaped and keep structural integrity, it can be employed to make anything at all from a waterfall to a back garden arch.

As soon as you have the shape set up with the re-bar, the expanded metallic can be hooked up. Tie it to the re-bar every single a hundred to 150mm. Make guaranteed it is not unfastened. Coat the framework with two three to 4cm coats of mortar mix leaving a minimum of an hour or overnight between coats, based on the temperature of the day. Incorporate texture to the venture applying identical methods to the solid fill approach.


Applying a mix of big and modest cardboard containers slice to shape it is possible to construct up a firm framework extremely near to the desired rock shape. Employed containers are easily readily available no cost from neighborhood outlets and provide an uncomplicated and financial way to make bogus rock of all shapes and dimensions.

· Make the framework rigid by stapling, wiring, screwing or gluing the slice box shapes together to kind the rough outline of the desired rock shape.

· Coat the containers with two coats of acrylic polymer stabilizer mix, applying a brush to throw the mix directly onto the cardboard. If also a great deal is utilized at at the time there is a risk that the cardboard will be soaked and collapse. Enable the cardboard to dry between coats to give it the necessary toughness to guidance the finishing mortar mix coat.

· The cardboard can now be coated with a 80mm coat of mortar mix utilized in two 40mm coats.

· The framework can now be textured, stained and sealed.

Casting from a Mould.

For generating the most precise reproductions of normal stone there is almost nothing to beat the castings of faux rock from a mould. They are exact duplicates of what you have seen in character. The identical rock can be created in excess of and in excess of. Moulds can be created applying latex or silicone generally with a plaster back up mould to keep the unique shape.

The entire system to make bogus rock with mould casting and decoration will be the matter of a forthcoming posting together with the use of texture moulds in the manufacture of faux rocks.

Resource by Stan Alderson

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