hammer beam vs stringer

hammer beam

noun
  • A member of a kind of roof truss (a hammer-beam truss), so framed as not to have a tiebeam at the top of the wall. Each principal has two hammer beams, which occupy the situation, and to some extent serve the purpose, of a tiebeam. 

stringer

noun
  • A horizontal timber that supports upright posts, or supports the hull of a vessel. 

  • The side rail supporting the rungs of a ladder or the steps of a flight of stairs. 

  • Someone who strings someone along. 

  • Wooden strip running lengthwise down the centre of a surfboard, for strength. 

  • A hard-hit ball. 

  • Someone who threads something; one who makes or provides strings, especially for bows. 

  • A cord or chain, sometimes with additional loops, that is threaded through the mouth and gills of caught fish. 

  • A pallet or skid used when shipping less than truckload (LTL) freight. A platform typically constructed of timber or plastic designed such that freight may be stacked on top, able to be lifted by a forklift. 

  • A person who plays on a particular string. 

  • A person who deliberately states that a certain bird is present when it is not; one who knowingly misleads other birders about the occurrence of a bird, especially a rarity. 

  • A small screw-hook to which piano strings are sometimes attached. 

  • A freelance correspondent not on the regular newspaper staff, especially one retained on a part-time basis to report on events in a particular place. 

How often have the words hammer beam and stringer occurred in a corpus of books? (source: Google Ngram Viewer )