<p>concrete for a step to cover 800x1200x150mm&nbsp;(0.15 cubic meter)</p><p>3x Cement &pound;24</p><p>5x Sand &pound;15</p><p>Mixer &pound;20 per week</p><p>1/4 sheet of ply shuttering &pound;18</p><p>Shutter release oil &pound;20</p><p>Generator &pound;120 per week</p><p>Breaker &pound;50 per week</p><p>Petrol grinder &pound;45 per week</p><p>Concrete Cutting blade &pound;60</p>