Bill of quantities measurement and pricing, building area calculation, bill of quantities pricing case: a multi-storey brick concrete residential strip foundation project, as shown in the following figure, the soil is: Class III soil, the foundation is brick square foot strip foundation, the cushion is 37 lime soil, width is 810mm, thickness is 500mm, excavation depth is 3m, spoil transportation distance is 4km, and the total length is 100m. Bidding