This weekend warrior needs to build a 40 foot by 3 feet high retaining wall. After that, I'm going to build terraces toward the back of my patio to hold back a dirt hill.
http://www.keystonewalls.com/pages/Homeowner_pages/H.products.html I chose Keystone's Legacy stone because I can get it at Home Depot, it's cheap and they'll deliver many palettes of this stuff for $65. RCP block wanted $800 to deliver four palettes--the choice was easy. Also, the stones lock in place and don't have to use anything else other than to stack them on top of each other. I've never worked with concrete so I don't even want to get into that *yet*.
My questions are:
1. How deep does the foundation of the wall have to be? I'd hate the thought of making a four inch trench with a sand base, and then burrying attractive (expensive) rock to support the wall. Can't I use dirt filled cinder blocks, would that support the wall? Please folks, keep in mind that I've never done this before so I appologize if that's a stupid question.
2. The large stones are heavy (50lbs). I can stack them but I'd be doing it myself. My wife wants to help--is looking forward to it--but they're too heavy for her. What do contractors use ( that you don't have to rent) to lift these monsters around?
3. What's the rule of thumb for using small stones versus large stones. I'm considering using the small stones simply because they're lighter. Why would I want to use larger stones?