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Moving a Wall in the Toilet

Admin October 05, 2026

Moving a wall in the toilet is feasible under specific conditions, but it requires careful handling and compliance with multiple requirements.

1. Structural Safety Requirements
If the wall is a non-load-bearing wall and not located at a beam or column position, it can theoretically be removed and moved. However, it should be noted that some buildings are designed with concrete beams or upturned sills beneath non-load-bearing walls. Moving such walls may result in the appearance of beam heads on the ceiling (affecting ceiling installation) or concrete sills on the floor (requiring chiseling). If the wall is a load-bearing wall, it is strictly prohibited from being moved, as doing so would damage the overall load-bearing structure of the building and pose safety risks to the entire building.

2. Waterproofing Specifications
After removing the original wall, a cement waterstop strip should be poured on the floor (with a height of no less than 15-20 centimeters). The inner wall of the bathroom adjacent to the newly built wall should be coated with waterproofing paint (with a height of at least 180 centimeters) and tiled. The walls of the storage room should also be painted with a waterproof layer to prevent moisture. After the waterproofing work is completed, a 48-hour closed water test must be conducted to confirm no leakage before construction can continue. Otherwise, it may lead to disputes with neighbors or rework later.

3. Plumbing and Electrical Renovation Points
It is necessary to confirm in advance whether the original wall contains plumbing or electrical lines. If a bathtub or toilet needs to be installed next to the newly built wall, the toilet drain pipe should be relocated and the floor slope adjusted (a slope of 2%-3% is recommended) to prevent water accumulation. If underfloor heating is used, the underfloor heating pipes at the new location need to be completely relocated, but it is strictly prohibited to install joints in the middle of the pipes (which can easily lead to leakage). If the original plumbing or electrical points need to be extended, joints in the middle of the lines should be avoided (posing risks of electric shock or pipe bursting). If necessary, the original lines should be discarded and new ones laid.

4. Construction Specifications and Approval
It is recommended to obtain the original building construction drawings to clarify the original structure of the wall and the layout of the lines, reducing construction risks. Before making any changes, a construction plan should be submitted to the property management for approval before work can commence. Otherwise, you may be required to restore the original state. In addition, due to the prevalence of underfloor heating in northern regions, moving walls may face difficulties in pipe relocation and an increase in floor elevation (resulting in insufficient height difference between the bathroom and the room), requiring advance planning of solutions.

Risk Warning: Moving walls may trigger a chain of problems, such as hidden dangers in pipe joints, waterproofing failure, and structural damage. It should be carried out by a professional team that assumes potential risks. If conditions permit, it is recommended to prioritize adjusting the bathroom layout or using partitions as alternatives to wall movement.