On the upper edge of each side
The upper edge of the planking of the side of a boat or ship.
on the upper edge of each side
The gunwales is the top edge of the side of a boat.
Gunwale
A "gunwale" is the upper edge of the side of a boat (any side). The name derives form the time when cannon were mounted on boats and the "gunwales" were where these cannon were mounted.
The gunwales is the top edge of the side of a boat.
The gunnel is the top edge of the side of a boat.
Pronounced gunnel, the word is properly spelt gunwale in standard Englsh.This refers to the upper edge of the side of a boat, and is usually used in the plural.... the ship was loaded to the gunwales with treasure.
The gunwale is the top edge of the side of a boat.
on the upper edge of each side
On the upper edge of each side