Wall-plate

Wall-plate
a timber laid lengthwise at the wall top to receive the ends of the roof rafters and other joists. In timber-framing, the studs are also tenoned into it.
Yorkshire sash ...

Wall-Plate
A timber laid lengthwise on the wall to receive the ends of the rafters and joists.
Wall-Walk ...

Wall-plate - horizontal roof-timber on wall-top.
Wall-stair - also known as mural stair. Staircase built into the thickness of a wall.
Wall-walk - passage along the top of a castle wall; may be roofed.
Ward - a castle courtyard or bailey.