Stem (Hull)

The principal structural member or formed edge at the foremost part of a hull where its sides meet.

In traditional construction the stem is a timber or metal member joining the keel and forward planking or plating. In moulded or welded hulls it may be an integrated shape rather than a separate piece, and it can be vertical, raked, curved, wave-piercing or otherwise designed.

The bow is the entire forward part of the vessel, whereas the stem is its leading structural line or member. It can carry collision, grounding, forestay and anchoring loads through adjacent structure, so damage or cracking requires more than cosmetic assessment.