Yes, FLOORING is a Scrabble word!

Letter values in Scrabble US: F 4, L 1, O 1, O 1, R 1, I 1, N 1, G 2.

Is it a valid word?

FLOORING is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the inside lower horizontal surface (as of a room, hallway, tent, or other structure)
building material used in laying floors

Also: ball over, blow out of the water, take aback, knock down.