Hull

• keel

  One of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically...

• keelson

  A longitudinal beam connected to the keel of ship to strengthen it.

• rider plate

  A horizontal beam (or plate) connected to the top of a ship's vertical keel or to the...

Also contains

• wood

  The hard fibrous lignified substance under the bark of trees.

• timber

  A beam made of wood.

• joist

  Beam used to support floors or roofs.

• girder

  A beam made usually of steel; a main support in a structure.

• ridge

  A beam laid along the edge where two sloping sides of a roof meet at the top; provides an...

• shoring

  A beam or timber that is propped against a structure to provide support.

• balk

  One of several parallel sloping beams that support a roof.

• traverse

  A horizontal beam that extends across something.

• box beam

  A beam built up from boards; has a hollow rectangular cross section.

• cantilever

  Projecting horizontal beam fixed at one end only.

• header

  A framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer...

• tie

  A horizontal beam used to prevent two other structural members from spreading apart or separating;...

• header

  Horizontal beam used as a finishing piece over a door or window.