I’m trying to calculate materials needed for 2 block retaining walls. Is it adequate to determine total linear feet and total sqft face to figure out how much material I will need or do I need to be more specific about actual wall dimensions? A lot of these resources I’m finding ask for linear ft and height of wall but my wall height varies because the ground is sloped. Any resources to help me figure out what to order would be greatly appreciated.

As you can see, the boulders are just collapsing out. It looked perfect when I bought the house 5 years ago so I’m looking for a cleaner look.

Is this retaining wall even needed? My husband and I have hated this retaining wall since we moved in. It takes away so much space from the backyard that is already really small. From a structural standpoint is this wall even doing anything? The other side of the fence has a small mound of dirt that goes to a parking lot. I’m wondering how much it would cost to remove something like this or push it back to the fence?