All of these retaining wall blocks I see at big box hardware stores all say max build height 2ft. I have an area that requires closer to 2.5ft, a little more for base layer.. what are my options? Can I do something to stabilize to add another two layers or so?
This is to surround the dirt, as this area was dug out from slope. I will be back filling with river rock and a few inches of soil behind wall.
I was looking at these as I don't need a really fancy looking brick, but I need one that can go a little more than 2ft without breaking the bank: