The 1438 indenture for construction of the hall specified as follows:
'The hall...is to be precisely 41 ft. 10 in. long (other dimensions not specified) and of four bays, with three middle beams (ties), 12 in. thick and 18 in. broad (i.e. deep) at the centre...these ties were to be 'pendanted', 'with braces embowed'...The rafters were to be diminished towards the apex. There was to be a high dais...on the high bench, as well as side-benches, and for lighting, windows and four 'gapias' (hardly dormers, but high 'frieze-windows' on the otherwise blind west side). There were to be two ground-floor chambers, reaching to the street, at the south end of the hall, with a 'double stage, jettied' above them, and a chamber at the north end with a single jettied 'stage' (Rigold, 'Two Types,' 4).