Wire gauge is a measurement of the thickness of a conductor. Lower numbers indicate thicker wire

A wire nut is a device for securing two or more wire ends together and while insulating the bare ends from arcing or electrical shock

A wire staple is a simple fastener for securing Romex wire to framing

Workability is how well the material can be tooled to a proper finish before it begins to dry or set

A worm drive saw is a saw where themotor is connected to the blade through a right angle gearbox which adds weight and extra torque to the tool.

Woven is one process used to attach fibers to a roller cover that provides a denser nap than a knitted roller. This type of roller holds less paint than knitted but yields a finer finish

A wye is a fitting with three openings that connects two drain lines together in the shape of a “y”

X paper is heavier reusable rolls of floor protection material

Xenon is a gas-filled between glass panes to slow heat transfer through a window

Zinc is asoft silver colored metal used for protection of fasteners applied as a coating or plating