Saw pit
（重定向自Top sawyer）
A saw pit or sawpit is a pit over which lumber is positioned to be sawed with a long two-handled saw by two men, one standing above the timber and the other below. It was used for producing sawn planks from tree trunks, which could then be cut down into boards, pales, posts, etc. Many towns, villages and country estates had their own saw pits. The greatest user of sawn timber in past centuries was the shipbuilding industry.