Name a common non-structural panel.

• A. Door
• B. Chassis rail
• C. Roof support
• D. Bumper reinforcement

Answer: (A)

In collision repair, panels are viewed as either structural or non-structural based on whether they carry and transfer crash forces. Non-structural panels are the exterior skins that can be removed and replaced without altering the vehicle’s primary crash load paths. They mainly provide cosmetic appearance, weather sealing, and access.

A door is a common non-structural panel because it isn’t designed to carry the vehicle’s crash loads or help maintain the structural integrity of the body. It can be replaced more easily, and its removal does not usually affect the frame’s ability to absorb and distribute impact energy.

By contrast, structural components like chassis rails, roof supports, and bumper reinforcements form part of the vehicle’s skeleton and energy-absorbing system. They carry load paths during a crash and help maintain cabin safety, so damage to them requires more involved frame or structural repairs.