The three lower stones at the entrance – called the threshold – once supported and secured a two-piece door, providing a durable and attractive entrance into the building. The threshold at our synagogue was replicated from Gamla – the best preserved example from a first-century synagogue.
As they were set into the wall using little or no mortar, door jambs had to be carved as square as possible. Large one-piece and two-piece limestone jambs were commonly used in synagogues throughout the Roman Period.
Threshold and door jambs are built, as capital raising and crowning continue.
The door plan – researched by Professor Stephen J. Pfann – is based on evidence of ancient doors found at Qumran.