- blueprint
- blur
- board base
- board ceiling
- board walk
- boarded floor
- boarding joist
- boat derrick
- boathouse
- body width
- bog formation
- Bohemian glass
- boil up
- boiled oil
- boiler accessories
- boiler ash
- boiler capacity
- boiler plant
- boiler tube
- bold
- bold type
- bolt on
- bolt thread
- bolt washer
- bolted assembly
- bolted joint
- bond length
- bond resistance
- bond stress
- bonding
- bonding capacity
- bonding system
- bondstone
- bomb penetration
- bond beam
- bond timber
- bond zone
- bonding agent
- bonding layer
- bone
- bonfire ground
- boning
- boning rod
- boning rods
- bonnet
- bonnet hip
- bonneted
- bonus
- bonus fund
- bonus payment
- bonus payments
- bonus system
- bonze varnish
- book jacket
- bookcase
- booklet
- bookplate
- bookshelf
- bookstore
- boom
- boom crane
- boom plate
- booster compressor
- booster fan
- boot
- booth
- bootstrap
- bootstrap operation
- border
- border crack
- border irrigation
- border line
- borehole charge
- borehole charging
- boring
- boring frame
- boring lathe
- boring mast
- boring nozzle
- boring plan
- born
- borrow pit
- boss hammer
- bossing
- botanical name
- botryoidal
- bottle trap
- bottom
- bottom block
- bottom bracing
- bottom brick
- bottom chord
- bottom curing
- bottom current
- bottom deposits
- bottom dumping
- bottom fiber
- bottom laterals
- bottom lintel
- bottom plate