Q:After reading your column on salvaging old bricks (Dec. 15), I have a couple of questions of my own and would like to get some suggestions. I have a concrete slab (about 2 to 3 inches thick with ...

For concrete block raised beds, you can use one layer or stack two together. Most blocks are 8X8X16 and fairly inexpensive.

Concrete interlocking blocks have some advantages over wood for making raised beds. First, they don't rot. Also, they can be dismantled and moved, the container's shape changed or deepened. You ...