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.
2 foot high concrete retaining wall.
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.
46 5 face ft.
Cross section of a retaining wall a cinder block retaining wall is only as straight and solid as the base it s built on.
Pecan concrete retaining wall block 144 pcs.
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.
Interlocking concrete blocks are beautiful and designed and structured specifically for use in retaining walls.
Of compacted base 1 in.
Tall wall excavate a trench deep enough to accommodate 4 to 6 in.
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.
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.
All retaining walls should lean into the hill 1 inch for every 12 inches of height.
Using construction adhesive secure your block caps and create the top layer of your retaining wall.
Of leveling sand and half the height of the first course of blocks.
Concrete retaining wall footing size the depth to the bottom of the base slab should be kept at a minimum of two feet.
One key aspect of retaining wall construction is preparing a solid footing or foundation.
Pavestone rockwall small 4 in.
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.
How to build a concrete wall figure a.