<p>sheet of ply cut into 400x400 sqaures&nbsp;18mm&nbsp;&pound;22</p><p>4x Acrow&nbsp;props in yard &pound;8 per week each</p><p>102118 suspended ceiling wire &pound; &pound;17.30 (CCF)</p><p>546541 fixings to suit conctrete fixings &pound;12.60 (CCF)</p><p>6x tread steps &pound;15 per week</p>