One key aspect of retaining wall construction is preparing a solid footing or foundation.
2 foot concrete retaining wall.
Concrete retaining wall footing size the depth to the bottom of the base slab should be kept at a minimum of two feet.
Nationally the cost to install a concrete retaining wall ranges from 2 000 to 15 000 but the average cost is 3 500.
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 block caps should overhang the retaining blocks by 1 to 1 1 2 inches.
Many variables affect that cost including the design the wall s location on your property and how much concrete contractors in your area charge.
However it should always be below the seasonal frost line and that often is much deeper in northern climates.
Preparing a troublesome site one that includes clay soil or a natural spring for example can raise costs substantially.
Thoroughly planned and ably performed wall construction will help to ensure the retaining wall s stability.
How to build a concrete wall prep work.
In most cases square footage is the most significant factor in determining your final cost to build a retaining wall.
The system is used to create vertical stacking walls and is most commonly used for retaining walls bin dividers and soil stabilization.
The cranesville barrier block is the get it done concrete block used for both commercial and residential development.
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.
It took a day to rip out the old collapsing retaining wall to dig farther into the hill to provide room for the backfill gravel and to help unload materials.
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.
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.
Materials tools and site.
Using construction adhesive secure your block caps and create the top layer of your retaining wall.
The preferred block size is 2 x 2 x 6 wide and weighs approximately 3 600 lbs.
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.