"floor boards" is correct and commonly used in written English.
It refers to the individual wooden planks that make up a floor. Example: The old house creaked as I walked across its worn floor boards.
Floor boards long muffled by carpets shine as if freshly varnished.
"It sounds tedious, but there's a lot you can learn from looking at floor boards".
"If you have a leaky bathtub, the problem's not with the floor boards beneath.
The best thing about the shop (besides the roughly hewn wood floor boards and the meticulous merchandising) is the staff.
The best thing about the shop (besides the roughly hewn wooden floor boards and the meticulous merchandising) is the staff.
The animal had broken out of its den in Wombwell's menagerie by tearing up some loose floor boards.
Details in Hullett House, like floor boards and door frames, have been retained from the original structure.
The exhibition then turns dark, with the charred dresses set in a space of singed floor boards and burnt panels.
The floor boards are warped, and here and there a hole has been patched with a flattened-out soup can.
For good measure, it piles on the refrigerator, the stove, the floor boards and even the plumbing.
When inspecting a house, pest-control operators are not responsible for pulling up floor boards or checking inaccessible crawl spaces.
