lankku

Etymology
From, from.

Noun

 * 1) a plank long, broad and thick piece of sawn timber

Usage notes

 * There's no one exact definition, but generally sawn timber must be at least 38 mm (1,5") thick and 75 mm (3") wide to be called . If the cross-section is close to square, heavy timber will be called . A heavy plank may also be called.