Glossary in Letter K

Key
A groove in the top of a footing.
Keys (Another Term)
Little fingers of plaster that squeeze through lath. When they harden, these hold the plaster in place.
Keystone
An angular block centered over a door or window in a header or mantle.
Kick-out clause
A clause in the sales contract that allows the seller to accept the buyers contingent offer, if the seller were to back out, no penalty will be present if a second buyer makes a better offer.
Kit home
A structure that contains prefabricated components and is put together by a contractor.
Knee wall
A wall-like structure that supports roof rafters.
Knob-and-tube wiring
Old-fashioned wiring system that has been replaced by fuses and circuit breakers.