I have replaced a window with a pair of doors, and thus got a large opening in the floor that needs to be covered. Does anyone have tips on the type of board/material that would look best to cover this opening with? I don't want to use the same pine planks as the existing floor, crosswise. It's too much hassle to saw out and lower to the same level. I'm thinking about a board no more than 10mm thick that can lie on top of the existing floor and meet the threshold of the door.
An oak slice maybe?