- key joining
- key map
- key plate
- key word
- keyed beam
- keyed pointing
- keying
- keypad
- kiln adjustment
- kiln control
- kiln drying
- kilogramme-metre
- jib boom
- jig
- jig saw
- job cleanup
- Job evaluation
- job order
- job record
- joggle post
- joinery panel
- joining means
- joint
- joint efficiency
- joint load
- joint sealing
- joint smoothing
- jointing
- jointless roofing
- joints insulation
- joist
- joist ceiling
- jolting vibrator
- journal
- joyful
- jubilee wagon
- jump-up
- jumper valve
- jumping frog
- junction canal
- junction circuit
- juncture
- junior channel
- junk
- justice
- K-truss
- karst funnel
- keel arch
- keep
- kermesite
- key
- key horizon
- key spacing
- keyboard buffer
- kill
- kiln burning
- kiln dried
- kiln insulation
- kinematic constraint
- kinematic displacement
- kinematic hardening
- kinematic hypothesis
- kinetic head
- kinetic moment
- kinetics analysis
- king
- king bolt
- king rod
- kitchen
- kitchen garden
- kitchen recess
- kitchen stove
- knaggy
- knaggy wood
- knar
- knee
- knee wall
- knock-down
- knot
- kaolin clay
- karstenite
- kedge anchor
- keel
- key assembly
- key bar
- key commandment
- key industry
- key joint
- keylock
- keyseater
- keystone
- keyway
- kick plate
- kick starter
- kicker
- kickplate
- killed lime
- kiln brick
- kiln car
- kiln liner