Answer: pilings

AnswerCrossword Clue
PILINGSBridge supports
PILINGSFoundation components
PILINGSStructural support
PILINGSPier props
PILINGSPier supports
PILINGSSupports for buildings, piers, etc.
PILINGSPier group?
PILINGSGroups of wharf-supporting beams
pilingsPILING, a structure of building supports