Antony | How to deduct doors, windows and openings from wallsAntony 2017-09-05 17:23:39 I would like to share a request for assistance Request How can I deduct from walls surface the area occupied by doors, windows and openings? Answer You need to insert themeasures of the opening (door, window, etc.)to deduct (with a minus sign) in the measurement rows of the masonry and/or the plaster and/or the painting, etc. --> (see explanatory image) |