Take the elevator up and, floor by floor, the windows let in more light.

"Neither building can afford to wait and rent floor by floor."

Is there at least a 30-inch by 48-inch clear floor space on the wheelchair lift?

The American group had no time to roam the whole building floor by floor.

Of course, they'd have to start at the bottom and work their way up floor by floor, to make sure everything was secure.

The college eventually built its own hospital, floor by floor as funds allowed, from 1903 until 1913.

Each day two or three Pages sort their party's flags from building into sequential order by room and floor.

"I'll try to keep track of you floor by floor with the various monitors," David said.

In the school year of 2012-2013, both residence halls became coed by floor.

Does it make more sense to divide them by floor?