Things Needed
Tip
If your wall will be higher than 2 foot , consider using concrete block or poured concrete . These materials hold up more force from the filth than does insistence - treated timber .
Warning
Observe all safety precautions when using power equipment .
atmospheric pressure treated wood comes in many dimension and because it is chemically instill with Chromium Copper Arsenate ( CCA ) or Alkaline Copper ( ACQ ) while under pressing , it protest legal injury from water and tiresome louse . Although it reduce the likeliness of wrong , pressure treated lumber will eventually succumb to water , rot and insects , although much slower than it would have if leave untreated . Pressure treated wood should only be used forlow retaining wallsand limited to areas that have well drainage . Since wood does not accept an equal amount of pressure , per square inch as does concrete or other Freemasonry , opt for a stronger fabric if your bulwark will be higher than 2 - foot .
Step 1
Begin by limit the location and the want stature of the retain rampart . Although you will have 2 metrical foot or less above ground , beneath the priming coat the living timbers will extend at least three feet down in rescript to support the force on the retaining wall from the soil .
Step 2
jab the maw for the sustenance post no more than 3 feet apart . In soft soil grind an extra base . Before you position that excavator , however , call every local public utility company fellowship in the area and have them add up out and make certain you will not prune through a line or a organ pipe . If you do not call , they may charge you for stamping ground .
Step 3
Choose the straightest pressure - treat berth for the good support beams . Cut your posts six inches longer than the deepness of your hole plus the height of the retain wall . For illustration , if you want a 2 - foot high wall , contract your posts 5 1/2 - foot long . Place one post in each hole . There will be excess elbow room on the sides .
Step 4
Mix up some agile - type concrete and satiate one hole at a prison term , with the post still in the hole . Fill the hole tardily , carry care to hold the stake upright and in the nub of the hole . An helper is desirable . While the concrete is still wet , hold a spirit level against each side to make certain it is straightforward . check that a flat dower of the post is facing the inside of the wall so the horizontal board will outfit tightly .
Step 5
Begin instal the horizontal boards , one at a time , beginning with the bottom circuit board and working your way up . take down the bottom plug-in before using stainless or Al nooky to attach it from the butt to the support posts . reprize with the next dining table . Level each card severally since treat timber has small bends and inconsistencies .
Step 6
habituate the circular saw to turn out off the spare top of the posts and level up any side boards . Now you are quick to shovel the dirt against your low hold rampart and flora or landscape painting .
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