The phrase "to wash the floors" means to clean the floor by using water, soap, or a cleaning solution to remove dirt, stains, or any other unwanted substances from the surface. Full definition
We chose a very inexpensive white washed floor, assuming in a couple short years we would be living somewhere else so this wasn't supposed to be an investment project. (quickstepstyle.com)
Because I would really hate to be responsible for anyone having to do a job twice, or worse - having to wash their floors more often than desired. (soulemama.com)