We recommend making the base twice as wide as the block depth to account for settling.
Retaining wall base gravel calculator.
Planning a retaining wall.
600 mm wide the length of the wall the depth of the trench will be 6 in.
If the wall is l feet long h feet high and t inches thick then the trench needs to be l feet long 0 12h feet deep and 2t inches wide.
Avoid placing the retaining wall where downspouts are pointed to keep standing water from forming inside the wall.
Retaining wall base trench.
Multiply the length width and height together to find the volume of the space.
To know that you need to calculate the total cost.
Calculating how much gravel you need.
Retaining wall cost varies by material.
Poured concrete is typically the most expensive followed by wood timber and then stones and pavers.
Lay a 4 6 inch layer of the crushed base material in the trench.
With our gravel calculator you can do it by multiplying the volume of purchased gravel or its weight by the price of one cubic yard or the price of one ton other units of weight or volume are also available.
Next compact it and level it using either a hand or mechanical compactor.
The first step to estimating gravel sand or soil is to estimate the volume of material needed.
It uses a standard pea gravel density.
The calculator will include this in the estimate but you can also use our cubic yardage calculator to estimate 6 of gravel for the project.
Start by measuring the length width and depth of the area you need to fill in the same unit of measurement.
The retaining wall should be set embedded below grade on a level base of 6 gravel or stone.
Now convert the volume to cubic yards.
Due to soil erosion your retaining wall should be built on a solid foundation made from paver base.
Estimate the amount of gravel needed to pack the trench at the base of the retaining wall.
Round rocks such as pea gravel rolls and dislodge under pressure resulting in failure of the retaining wall.
Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size.
Similar to gravel paver base is a form of construction aggregate that contains crushed rocks such as limestone.
You can use our gravel estimator to deal with these calculations.
25 mm for each 1 ft 300 mm of wall height for the amount or buried block that is needed.
Enter the number of walls wall dimensions and coverage amount to get started.
Before building a retaining wall plan it out.
In cubic yards the volume of the trench is lht 1350 and about half of the volume will be filled with coarse gravel.
Wallpaper calculator our wallpaper calculator is an easy way to figure out the number of wallpaper rolls you ll need to cover a single wall or a whole room.
More information on retaining walls where the base trench steps up a slope.
Dig a base trench 24 in.
