How to Measure for Replacement Sliding Glass Patio Doors
Replacement sliding glass doors that fit precisely where the old door once stood simplifies your project and saves you money. Measure correctly to find the exact dimensions of the replacement sliding glass patio door. If the dimensions of your new patio door need to change you must also build a whole new frame.
Supplies
- Tape measure
- Use your tape measure to take the measurements of your existing sliding glass door. Take measurements from three parts of the exisiting door frame from side to side. Write down only the narrowest dimension. The narrowest dimension is used to ensure that the replacement door will cleanly fit within the space.
- Go outside to measure from where the existing patio door frame begins to the outside of the glass door. Measure three different spots on the door and write down the smallest figure.
- You need to measure from the bottom of the door to the top of the frame in three separate places. Record only the narrowest measurement.
- Subtract ½” from all of the measurements that you recorded. These measurements represent the outside dimensions of your replacement sliding glass patio door. The existing frame will need to be reinforced to create a solid base to secure your new door.
- Choose in which direction you would like the sliding glass patio door to slide. Typical patio door sliders move from right to left. This design allows the door to close against the right wall. Ensure that your current furniture layout will not impede movement of the patio door slider.