21.   A frozen caster, or one that does not turn properly, can plow a wide groove in a wood floor.

22.   A wood floor expands or contracts with the fluctuations and creates warps or cracks.

23.   A wood floor is a thing of beauty.

24.   After torrential rains flooded the grass floors, wood floors were built under the camouflage dwellings.

25.   All wood floors should be installed this way.

26.   But the designers did install carpeting rather than keep the original wood floors, which could be hazardous and are difficult to maintain.

27.   But the wood floors, naturally, were specially laid to incorporate the tile.

28.   But wood floors take abuse and require proper care to keep them looking good.

29.   But wood floors that receive a lot of traffic soon show wear patterns.

30.   Butler ordered glass sinks for the restrooms, a marble bar, and an African wood floor.