- boudinage
- boulder
- boulder clay
- boulder soil
- boy scout
- boycott
- brace point
- braced construction
- braced cut
- braced girder
- braced structures
- braceless
- bracelet
- bracing beam
- bracing boom
- bracing framework
- bracing system
- bracker scaffolding
- bracket
- bracket cornices
- bracketed stairz
- bradawl
- braided cable
- braided river
- brake bracing
- brake impression
- brake rod
- brake system
- braking effort
- braking force
- braking range
- branch
- branch pipe
- branching
- branchy wood
- brattice
- bravery
- breach
- break down
- break mode
- break up
- breakage heading
- breakdown gang
- breakfast bar
- breaking deformation
- breaking up
- breakpoint
- breast board
- breastsummer
- breathing apparatus
- breech fitting
- breeze brick
- brewery
- brick alignment
- brick earth
- brick foundation
- brick gablez
- brick in
- brick lintel
- brick trowel
- brick walling
- brickaying crew
- bricking
- brickwork column
- bridge approaches
- bridge beam
- bridge bent
- bridge cable
- bridge classification
- bridge desk
- bridge engineering
- bridge formula
- bridge launching
- bridge opening
- bridge rehabilitation
- bridge tunnel
- bridgework
- bridle joint
- bridle-path
- brightness
- brilliance
- branch fitting
- branch knot
- branch sewer
- branchless wood
- brass nail
- brass wire
- braze welding
- brazing
- break tank
- break wind
- breakage area
- breakage front
- breaker
- breaking hole
- breaking joints
- breaking moment
- breaking ring
- breastbeam
- breather plug