There are quite a few different types and designs available so the choice is up to you.Ĭoping stone or capping stone used to finish the top of a wall and provide additional strengthīuilding sand and cement are needed to make your mortar – see our Mortar Mixes project for help with this.īecause screen blocks are often white, you might want to use white cement and silver sand to produce a light coloured mortar to match. In most cases it will be the correct width for your blocks (3 inches) but it may need trimming up.ĮML or expanded metal lath mesh wire for reinforcementĬaps and copings for the tops of the pilasters and wall should be purchased too – these will finish the top of the wall in an attractive way, and help to add strength and protection.
It is normally bought on a roll and you simply roll it out and cut to the desired length. This galvanised metal wire or Expanded Metal Lath wire can be bought from most builders merchants. Cut to size with wire cutters so it doesn’t protrude over the edge of the blocks. If your wall is going to be more than 600mm (2ft or two blocks) high, you also need to reinforce it horizontally by adding lengths of galvanized wire mesh between courses. These rods will need to be inserted both down the centre of the piers to your desired height so that they then give upright strength and rigidity and also into the concrete foundation so that they are bound to the footings. The pilaster blocks are designed so that a rod can be inserted down the centre of the pier. You will need to reinforce your piers and pilaster blocks with 16mm steel rods. When sourcing pilaster blocks, ask your local builders merchants, they should be able to supply them or put you in touch with someone that can.Įnd pilaster block for screen wall used to construct supporting piersĬorner pilaster block used in constructing screen walls to create a corner join Pilasters also go by the name of hollow concrete blocks or Steps Blocks ( as seen here). Pilasters are available in end, intermediate and corner versions, and should be placed no further apart than every 3m (10ft). This means that you need to create piers to strengthen the wall.īlocks commonly called pilasters are available to build the piers with – these specially designed blocks are created so that the screen blocks fit into a cast recess, forming a strong joint. Because of their pierced decorative effect, they work much better if they are laid in line rather than staggered like a normal wall. The cast concrete blocks you will be using to build your screen don’t work in the same way as normal bricks or blocks. Most blocks are around 300mm (12”) square and 100mm (4”) deep.ĭecorative block used in block screen construction
Materials Needed for Building a Block Screen Wallĭepending on where you purchase your blocks (try your local builder’s merchant), there may be a range of patterns and even colours available. Using decorative concrete blocks to make a screen wall in your garden is an easy way to divide up areas or provide some dappled shade and a degree of privacy.
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