Masting /(?)/

Mast·ing

Masting

n.
  1. The act or process of putting a mast or masts into a vessel; also, the scientific principles which determine the position of masts, and the mechanical methods of placing them. (Naut.)

Phrases & Compounds
Masting house
a large building, with suitable mechanism overhanging the water, used for stepping and unstepping the masts of vessels.