Intro
A plate rail is a traditional way to top an Arts and Crafts wall treatment. But instead of ending that wall with a cap, extend it with the ledger and plate rail.
Construction of the plate rail is quite straightforward; feel free to substitute construction methods that suit the tools you have. For example, if you don't have a biscuit joiner, simply make the L-shape assembly with glue alone or with glue reinforced with nails. There's plenty of long-grain to long-grain gluing surface, and the finished joint can actually be stronger than the wood itself.
Cut the components for the length of plate rail that you're building. There's a bracket centered over every stile in the wall system, so simply count the stiles and make an equal number of brackets. The molding is easy to make with angled rip cuts on your table saw.
Checklist
Time
About 1/2 hour per linear foot of rail
Tools
Tape measure, combination square, biscuit joiner, miter saw, table saw, hammer, drill with bits, nail set, clamps
Skills
Driving nails; clamping; using a biscuit joiner, table saw, miter saw
Prep
Wall surface should be painted; apply finish to all plate rail components
Materials
Quartersawn white oak for plate rail components, 4d and 10d finishing nails, 1-inch brads, #20 biscuits for joiner, masking tape, stain and finish, panel adhesive and caulking gun, white glue and applicator brush, colored putty for filling holes