Compass (architecture)

In carpentry, architecture, and shipbuilding, a compass is a curved circular form.^[1]

A compass window

Examples

• A compass plane is a plane that is convex, length-ways, on the underside, for smoothing the concave faces of curved woodwork.
• A compass saw is a narrow-bladed saw that cuts a curve.
• A compass timber is a curved (or crooked) timber, sometimes used in shipbuilding.^{[citation needed]}
• A compass brick is a curved brick.^[2]
• A compass wall is a curved wall.^{[citation needed]}
• A compass window is a circular bay window.^[3]
• A surveyor's compass (or circumferentor) is a measuring instrument used in surveying horizontal angles.