It is as measured on the inside. In colonial contracts for churches this was referred to as "in the clear." It consists of walls of solid brick two-and-a-half bricks thick with English bond below the water table five bricks high and Flemish bond above the water table. The transition from the water table to the walls contains a row of beveled bricks. Glazed headers are used throughout the building, and there is a row of glazed headers along the barge boards. Unlike most churches of the early eighteenth century, there is almost no serious reconstruction in the walls. Rubbed brick including queen closers are present in the doorways, the window trim, and at all four corners of the building.