Wall Bracket
Any fastener attached to a wall supporting structural member.

Warping (Timber)
Distortion due to changes in moisture content.

A metal disc placed under a bolt or nut.

Waste Outlet
A fitting, which conveys waste or water from a fixture or floor to pipe network.

Waste Pipe
A pipe which conveys the discharge from waste fixtures.

Water Proofing
The treatment of walls and floors to make them impervious.

Water Table
The natural level of ground water.

Weather Board
An external wall cladding.

Weep Hole
A gap in a perpend of a masonry wall, just above the flashing to allow any water in the cavity to drain out.