"office floor" is a correct and usable phrase in written English.
For example, "The new employees were given a tour of the office floor so they could familiarize themselves with the layout of the work area."
A slide from the office floor to reception.
Bowman slept on her office floor a second night on Sunday.
And the office floor is cluttered with piles of hair strands instead of computers.
Then he parades her around the office floor shouting: "ARE YOU SINGLE?
The landing on the office floor had a reception desk, separated by a transparent glass partition.
He had to cancel meetings and lie on his office floor when the migraines struck.
His collection of bric-à-brac lies waiting on his office floor.
He might be waxing his office floor, or searching somewhat frantically for a dropped contact lens.
But as completed, the building was only eight stories high, with an office floor at the top.
Skylights puncture the rooftop to bring much needed daylight down into the deep deep deep-plan office floor below.
For the shoot, Beckham reclined on her office floor, surrounded by fashion chaos: swatches of fabric, soda cans, sketches.
