Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
2 foot high concrete retaining wall.
Of leveling sand and half the height of the first course of blocks.
Thoroughly planned and ably performed wall construction will help to ensure the retaining wall s stability.
The block caps should overhang the retaining blocks by 1 to 1 1 2 inches.
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.
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.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
How to build a concrete wall figure a.
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.
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.
Using construction adhesive secure your block caps and create the top layer of your retaining wall.
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.
Interlocking concrete blocks are beautiful and designed and structured specifically for use in retaining walls.
46 5 face ft.
Pecan concrete retaining wall block 144 pcs.
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.
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 compacted base 1 in.
Pavestone rockwall small 4 in.