The small slips nailed on joists or rafters in order to level a surface for lathing.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)

Usage examples:

He was, he said, a planter furring he had a line of traps, about a hundred and twenty miles in length.
- Marriage by H. G. Wells
No wood furring or lath.
- If You're Going to Live in the Country by Thomas H. Ormsbee and Richmond Huntley
There by agreement he was discharged from the ship and entered himself for eighteen pounds per annum into the service of a planter in that country in order to serve him in fishing and furring the chief trade of that place; for Newfoundland abounding with excellent harbours, there is no country in the world which affords so large and so plentiful a fishery as this does.
- Lives Of The Most Remarkable Criminals Who have been Condemned and Executed for Murder, the Highway, Housebreaking, Street Robberies, Coining or other offences by Arthur L. Hayward