plank over

To cover something up with planks of wood. A noun or pronoun can be used between "plank" and "over." Pedestrians are not allowed on this path until builders have finished planking it over. It turns out they had simply planked over the deteriorating ceiling rather than pay to repair it.

plank over something

to cover something over with planking. The county planked over the old bridge so bicyclists could use it.