Synchronized Sawzalls Published December 19, 2010 at 2048 × 1536 in Traditional Repair of the Abyssinian Meetinghouse ← Previous Next → Synchronized Sawzalls After taking the weight of the building off the original sill, the sill was trapped between the jacks and floor joists cogged into the sill. In order to remove the sill, we cut it into rotten, bite-sized chunks.