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Ask a master, how to open the floor?
1, it is not difficult to drill holes in concrete. Using concrete hole cutters (electric and cooling water), a round hole of about 20 cm can be cut regularly. In general families, bathrooms or kitchens, it is necessary to drill holes (with reinforced concrete) in the floor or wall when installing water heaters to discharge the burning waste gas to the outside and transforming the bathroom into a toilet. This device can be used. There is no problem whether it touches the steel bar or the stones in the concrete (the author also keeps a cylindrical cutting with a diameter of 18 cm as a sample), and the cutting space is very regular and efficient. It's just that the cost is relatively high, and the average family hole is about (80- 100) yuan.

2. Punch holes with an impact drill. This traditional method has been rarely used. If you can't find the hole opener, use it. Disadvantages: high noise, low efficiency, irregular drilling, especially hard stones, and even damage the drill pipe.

3. Whether the floor or the wall is perforated, attention should be paid to the influence on the structural strength. In order to avoid trouble, it is appropriate to obtain the consent of the property management office and neighbors before construction.