The retaining wall should be set embedded below grade on a level base of 6 gravel or stone.
Retaining wall base material calculator.
We recommend making the base twice as wide as the block depth to account for settling.
Refer to your approved plans for exact length.
Before building a retaining wall plan it out.
Planning a retaining wall.
Estimate your project needs.
To create a solid foundation dig a trench for the first course of your interlocking retaining wall blocks to sit in and make sure the ground remains even throughout.
Retaining wall cost varies by material.
If reinforcement is needed excavate behind the wall to accommodate the design length of the geogrid.
The success of your retaining wall depends on a level base.
Our easy to use professional retaining wall block calculator was designed to help you estimate precisely how many anchor wall blocks and complementary materials you will need for your next project.
Getting a landscaping estimate will help you plan for the cost of materials and labor to build the retaining wall which will help you save time and money.
The wall gets its strength from a sturdy base consisting of gravel.
When building a retaining wall diy landscapers need accurate estimates on the amount of stone blocks cap stones and gravel needed to complete the project.
Project estimator tool our online project estimator tool allows you to calculate the amount of pavers retaining wall blocks or slimbrick that you will need for your projects such as patios walkways driveways and retaining walls.
Starting at the lowest point dig a base trench the length of the wall.
A retaining wall must have the strength to hold back the weight of the soil plants and sometimes small structures behind it.
Professional retaining wall material estimator.
More information on retaining walls where the base trench steps up a slope.
Using a tape measure decide the length and the width of your retaining wall then mark off the area with the garden stakes and string.
Retaining wall material can range in price from 10 40 per square foot with some material options including cinder block wood interlocking concrete block natural stone or poured concrete.
Avoid having downspouts pointed at the retaining wall and if it s against the house keep soil and mulch well below the siding.
These cannot be used as backfill material.
Follow the block manufacturer s instructions for wall height limits.
See our retaining wall cost guide to find the average price of a retaining wall.
Preparing the retaining wall base.
Retaining wall material costs.
Avoid placing the retaining wall where downspouts are pointed to keep standing water from forming inside the wall.