B-pillar

Door frame column

The B-pillar is the vertical structural post in a vehicle's frame between the front and rear side windows, supporting the roof and providing side-impact protection.

It's where seatbelts typically anchor and rear doors latch: The crash test measured how well the B-pillar held up.

Also called the center pillar.

The A-pillar frames the windshield; the C-pillar is behind the rear door.

structure

doorpost

Vertical frame member

unibodyIntegrated structural shell
monocoqueSelf-supporting outer structure
body-on-frameVehicle with detached chassis

steel · aluminum · welding · spot welds · stamping · reinforcement · stiffness · rigidity · rocker panel · roof rail

design

roofline

Upper building contour

door hingeRotational door connector
door latchMechanism securing a door
weatherstrippingMaterial sealing door gaps

seal · visibility · blind spot · styling · coupe · sedan · hardtop · pillarless · fastback · greenhouse

safety

crash protection

Mechanisms minimizing collision harm

crashworthinessVehicle's ability to protect during collisions
crumple zonesEngineered collision-absorbing sections
reinforcementAdding support or encouragement

NHTSA · safety cage · collision · survivability · safety ratings · structural integrity · anchor point

B-pillar

doorpost

roofline

crash protection

B-pillar

Opposites

Categories

Family