Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
2 foot high concrete retaining wall.
An average brick retaining wall that is 30 feet long and 4 feet high without any built in steps or extra reinforcements is typically around 4 220 the average homeowner will pay 35 per square foot and spend between 2 450 and 6 650 to build a retaining wall.
Soil is heavy especially when soaking wet from a recent rainstorm so a basic retaining wall four feet tall and 15 feet long potentially has to support up to 20 tons of soil pressure.
The footing is usually made of poured concrete but in some situations homeowners may instead opt to simply use tamped earth or a gravel base.
One key aspect of retaining wall construction is preparing a solid footing or foundation.
Of leveling sand and half the height of the first course of blocks.
Poured concrete costs about 30 40 or more a square foot usually with a minimum charge for small jobs or about 1 500 2 000 for a wall 30 inches high and 20 feet long.
Thoroughly planned and ably performed wall construction will help to ensure the retaining wall s stability.
Block walls usually cost 20 30 per square foot which can vary depending on the type of block used concrete block walls can last a lifetime when installed correctly and add beauty to almost any landscape.
Interlocking concrete blocks are beautiful and designed and structured specifically for use in retaining walls.
All retaining walls should lean into the hill 1 inch for every 12 inches of height.
Timber walls 4 feet or higher should be tied to the hillside with deadmen anchors 6 foot long t shaped tiebacks buried in the hillside attached to the wall every 8 feet extending 6 feet back to a 2 foot wide t bar.
Pavestone rockwall small 4 in.
In general the top of the stem of any cast concrete retaining wall should not be less than 12 inches for the proper placement of concrete.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
Using construction adhesive secure your block caps and create the top layer of your retaining wall.
46 5 face ft.
Cover the gravel between your retaining wall and landscape with topsoil or sod so your garden will grow against your wall achieving a natural look.
How to build a concrete wall figure a.
Pecan concrete retaining wall block 144 pcs.