It must've been a century since there were steelgrays large enough to provide single planks so wide.
The pledge is but a single plank in the foundation of citizenship.
She concentrated her efforts on a single plank.
No dwarf will set so much as a hair of his beard on a single plank.
A single plank from the sod-covered roof served as a ramp for his old cat, who was better at getting up than down.
At the end of the lobby are the elevator doors, broken open slightly and held in place by a single plank of wood.
It was on a single broad plank, and the arms and legs hung down on either side.
But he hadn't noticed a single plank on deck... What else?
Forty yards on, another canal, with what was left of a bridge, a single plank without rails, ran across our front.
Now there's a big problem when your campaign has a single plank and your candidate can't articulate it.