The closed market was held above in a long and well-lighted room supported by oak beams and arches.

[8] Until the 19th century the hall was a busy centre of the Welsh woollen trade, where wool and flannel was brought to be taken to Welshpool.

[6] The "Wesley stone" on which he stood in 1749 when speaking to a large congregation is now outside the north west corner.

[8] In June 1876 the Freemasons of the province of North Wales and Shropshire had a banquet in the Market Hall.

As of July 1910 tolls were still being taken for stalls pitched on Saturdays in the ground floor open market.

[3] Heavy traffic was starting to affect the structure, but a bypass road has reduced the risk of damage from vibration.

[4] As of 2016 the hall contained a permanent display on timber-frame buildings, describing their history, construction techniques and uses.