- bottom rail
- bottom soil
- bottom view
- bottom wall
- boudoir
- boulder wall
- boulevard
- bounce
- bound joint
- boundary
- boundary angle
- boundary condition
- boundary element
- boundary event
- boundary fence
- boundary grain
- boundary line
- boundary member
- boundary post
- boundary stone
- boundary stress
- boundary trap
- bounded form
- boundless
- bourmonite
- Boussinesp formula
- bow
- bow calipers
- bow callipers
- bow girder
- bow member
- bow pen
- bow warping
- bow window
- bowden cable
- bowel urinal
- bower
- bowing alley
- bowl
- bowl capital
- bowled floor
- bowstring
- bowstring arch
- bowstring girder
- bowstring window
- box
- box abutment
- box beam
- box caisson
- box channel
- box culvert
- box cut
- box dam
- box deck
- box dock
- box drain
- box foundation
- box girder
- box gutter
- box heading
- box lock
- box mullion
- box out
- box panel
- box pew
- box pile
- box piles
- box shell
- box slab
- box spanner
- box stairs
- box stale
- box staple
- box wiring
- box-saggar
- boxed eaves
- boxed set
- boxed-off
- boxing
- boxing shutter
- blotchy appearance
- blow head
- blow-free
- blowdown line
- blower
- blowing
- blowing through
- blown joint
- blue asbestos
- blue clay
- blue earth
- blue steel
- blueprint drawing
- blueprinting
- blunt pile
- boa mould
- boar house
- board
- board measure
- board sheathing