The western was primarily used by lay-brothers who
worked and lived at the abbey, rather than on the granges. Here
they had their own refectory, dormitory, toilet-block (reredorters)
and cloister, and perhaps also their own infirmary.(47) The
western range was one of the first buildings constructed at the
abbey,
and was completed c. 1165.(48) This
was presumably to enable the lay-brothers to press ahead with preparing
the area and buildings for monastic
occupation, since the development of the site began in the mid-twelfth
century and the monks arrived in 1177. In a Benedictine house,
where there were no lay-brothers, the western range was occupied
by the cellarer and
generally also had accommodation for guests.