NGS Style Manual‎ > ‎- B -‎ > ‎

builder, building

If not in Webster's, this suffix is usually written as a solid compound, except when it is part of a long (two or more syllables) or awkward combination or subject to misreading:





but

shipbuilder
housebuilder
nestbuilder
coachbuilder
roadbuilder
empire builder
carriage builder
pyramid builders

exception: reef-building

shipbuilding materials
housebuilding construction
nestbuilding bird
coachbuilding blocks
roadbuilding
empire-building office meeting
carriage-building metals
Do not capitalize mound builder in reference to prehistoric American Indian peoples.