Commented: removing dirt when creating a new bedGenerally speaking, there is no need to remove the existing soil. They probably removed the bermuda grass by stripping off the sod instead of killing it chemically.
I would suggest a soil test before...
Commented: Slate Driveways?Slate is definately way too slippery when wet; I always steer my clients away from it. I imagine that in Seattle moss growing would make it even worse. Also, if there were ever going to be a car on it...
Commented: depth of landscaping rock2" should do it. You might want some landscape fabric underneath to keep the rock from gradually mixing with the soil below.
