- Florentine Renaissance
- flourish
- flow ditch
- flow meter
- flow network
- flower window
- fluctuating noise
- flue exhauster
- flue spread
- fluent
- fluid clutch
- fluid-tide
- fluing arch
- fluorescent paint
- flush ceiling
- flush cut
- flush faucet
- flush soffit
- flushing
- flushing pipeline
- flushpipe
- fluting
- fly pulley
- flying gang
- flyleaf
- foam solution
- foamed slag
- focal plane
- focusing plane
- fog lamp
- foggy weather
- flat desk
- flat end
- flat file
- flat fliers
- flat flight
- flat gasket
- flat ground
- flat jack
- flat pointing
- flat roof
- flat skylight
- flat slab
- flat tile
- flat vault
- flat yard
- flawy
- fleck
- flexibility factor
- flexible conduit
- flexible cord
- flexible reinforcement
- flexible structures
- flexible tie
- flexural member
- flexural region
- fliers
- flint module
- flit
- flitch girder
- float process
- floatation reagent
- floated finish
- floating brick
- floating control
- floating dale
- floating foundation
- floating pile
- floating point
- floating shed
- flocculation
- flood bridge
- flood estimation
- flood flush
- flood gate
- flood lighting
- flood plain
- flood sewage
- floodplain
- floor board
- floor covering
- floor diffuser
- floor fill
- floor girder
- floor grinder
- floor gully
- floor height
- floor line
- floor paving
- floor plate
- floor plug
- floor screed
- floor slope
- floor span
- floor stop
- floor suspender
- floor system
- floor varnish
- floor wood
- flooring block