Precise Measurement: Use a measuring tape and level to measure the construction area in detail, recording the dimensions and shape of each area, and draw a simple layout diagram. Based on the layout diagram, rationally plan the use of waterproof backing boards, calculating the required quantity and size of backing boards to minimize waste.
Cutting Backing Boards: According to the measured dimensions and shape, use an electric cutter or utility knife to cut the waterproof backing boards. During cutting, maintain a straight-line movement of the blade to ensure clean, smooth edges, avoiding burrs or cracks. For cuts of special shapes or angles, professional cutting tools and templates can be used to ensure accuracy and compliance with design requirements.