"pakdog" wrote in message
. ..
I want to build raised flower beds with used bricks -- mostly sandstone 4"
depth and various heights from 2" to 8". Any experienced people want to
comment? Want to know if this is a bad idea or what problems might come up
and how to avoid them. Assume I am cleaning off the old mortar as well as
I
can.

Can a 2-foot wall that is 4" wide and 9 feet long hold or do I need to
build
in supports? I'm thinking of doubling up the brick at key points along
each
of the main walls of the flower beds (dimensions: 9' x 28").

What kind of base or footing will you be using? What type of climate?
freezing can put some force on the brick. IMO, you'd have long term
problems with a 2' high wall.