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How to Build A Retaining Wall - Coggle Diagram
How to Build A Retaining Wall
1) Preparing the sites
g) Excavate the ground and install the base where you will set the first course of wall stone
f) For small walls, 3 courses or less require only partially bury the first course at least 2-3 inches into the ground
d) Measure down the stakes at four inch increments
e) For tall walls, requires more than 3 courses of walled stones, must bury the first course fully.
h) How deep and thick your base need to be depends on your wall height
c) Run a string between the stakes at the height wanted
i) Small walls, 3 courses or less of 4 inches wall stones dig out the trench 3 inches
b) Place tall stakes along the paint line
j) Tall walls, 4-7 courses height of 4 inches wall stones, the trench must be 8 inches deep
a) Marking the ground area with spray paint
k) After digging, tap down the floor of the trench with either a hand tamp or a compactor
2) Preparing the base
c) For tall walls, need a rigid base of 4 inches deep
d) For a rigid base, use pavestone paper base or prepare a 6:1 mixture of dry sand and Portland cement
b) Level the sand by smoothing out
e) Whichever you use, fill a length of the trench to a depth of 4 inches
a) For small walls, you need a sufficient base is one inch of course sand and place it in the trench
f) Use 2-4 to smooth out the base material and make sure it is levelled throughout both directions
g) Readjust the string height on the stakes by moving them down to the top of your first wall level
3) Laying the stones
c) Set the next course by placing each stone in a staged pattern
d) As you place the stone on top of a course, pull it forward to secure it in place
b) Now, set the stone in the base side by side. Levelling each stone in both directions with a torpedo level
e) When building your wall, you may need to lay partial stones to complete a course.
a) If your wall is set on the ground that rises or slope, begin at the lowest point
4) Cutting the stones
c) If you need the stones to be split in half, you'll find several stones on each palette that have grooves down the center
d) On a sidewalk or a hard surface, pound the score line with a mini sledge and chisel until it breaks
b) You should be wearing protective eye wear and use the mini sledgehammer and four inch chisel to get the length
e) You can also use guillotine splitter. Both ways are quick and easy and makes accurate clean cuts
a) Mark the land you need on the stone