Subbase lower than timber retaining wall? I want to put in an 18' span of timber retaining...
I want to put in an 18' span of timber retaining wall to stratum my planting bed in the front of my house. If you can picture this: Looking at the bed, the slope is not so much sloping toward you as it is dropping to the right. Over the 18' it drops roughly 2.5'. I know I should use 6" compactable gravel base, that I involve to level the first course if timber, I obligation a drainage pipe, and that the first course should be buried. I'll be using 6x6", 6-foot p/t wood, which will give me 3 timbers across the span. My quiz is, can I "step" the subbase for each timber, or do I hold to dig through a intact lot of godforsaken clay to level the entire first course of three timbers? Again, the slope is meek on the shallow side, so there won't be much of a backfill/soil nouns on it. I hate both digging and wasting money, so what to do?
Answers: Yes you can step you remains. Just try to keep it unobserved under ground. The historic thing is to hang on to what you can see level for appearance sake.
I've stepped masses footers. with much nouns. Every time I get a courtyard fixed up, I move so I start over again.
Steping is the way the professional do it. I still would put three or four inches of coarse grave both underneath and behind a retaining wall for drainage and freeze protection.
Think of me when picking your best answer, thankyou. Good Luck.