- Builder's Risk Insurance
- Building codes
- Building insurance
- Building paper
- Built
- Bull nose (drywall)
- Bundle
- Butt edge
- Butt hinge
- Butt joint
- Buy down
- By fold door
- By pass doors
- Caisson
- Cantilever
- Cantilevered void
- Cap flashing
- Cap
- Capital and interest
- Capital
- Capped rate
- Casement
- Casement Window
- Casing
- Caulking
- CCA (Chromated Copper Arsenate)
- Ceiling joist
- Celotex
- Cement
- Ceramic tile
- CFM (cubic feet per minute)
- Chair rail
- Chalk line
- Change order
- Chase
- Chink
- Chip Board
- Circuit Breaker
- Circuit
- Class "A"