Rock wall retaining walls are our speciality, using anything from blue stone to hand sawn sandstone blocks, this is an excellent way to show off your landscaping or garden beds and keep that Aussie rustic look, with vast experience, classic rock walls can build and supply anything. Give us a call and see what we can do for you.

Split face retaining wall blocks for building curved walls, straight and corner retaining walls in outdoor living areas up to 6 metres in height .we supply a large range of retaining wall block colours and split face textures from rough and rustic to smooth and contemporary to suit variety of outdoor/garden designs and building styles.
 
Concrete block retaining wall systems for garden retaining walls up to 900mm high. Choose from different block colours and textures to suit garden design and landscaping projects such as raised flowerbeds, garden edging, terraces and retaining walls. Lightweight retaining wall blocks with natural look of quarried stone for quick, easy DIY retaining wall installation without mortar joints or concrete footings.

A retaining wall is a structure that holds back soil or rock from a building, structure or area. Retaining walls prevent downslope movement or erosion and provide support for vertical or near-vertical grade changes. Retaining walls are generally made of masonry, stone, brick, concrete, vinyl, steel or timber. Rock Walls are sturdy and virtually impervious to surrounding environments.

Segmental retaining walls have gained favor over poured-in-place concrete walls or treated-timber walls. They are more economical, easier to install and more environmentally sound.

The most important consideration in proper design and installation of retaining walls is that the retained material is attempting to move forward and downslope due to gravity. This creates lateral earth pressure behind the wall which depends on the angle of internal friction (phi) and the cohesive strength (c) of the retained material, as well as the direction and magnitude of movement the retaining structure undergoes.

Lateral earth pressures are typically smallest at the top of the wall and increase toward the bottom. Earth pressures will push the wall forward or overturn it if not properly addressed. Also, any groundwater behind the wall that is not dissipated by a drainage system causes an additional horizontal hydrostatic pressure on the wall.[1]

As an example, the International Building Code requires retaining walls to be designed to ensure stability against overturning, sliding, excessive foundation pressure and water uplift; and that they be designed for a safety factor of 1.5 against lateral sliding and overturning