How to Measure a Bay Window for Replacement

How to Measure a Bay Window for Replacement

Bay windows are undoubtedly beautiful. They protrude from your home and stand out in a stunning and retro fashion that no one can ignore. They make for a great addition to your already gorgeous house, similarly to bow windows, but how do you measure for a bay window replacement?

However, even these windows need to be replaced at some point. Depending on the quality of the windows, the extremeness of the weather, and more, windows will lose their toughness and become damaged or broken. 

Whatever the case is for you, if you need to replace them, you will need to measure them first. That’s precisely what we are here to tell you about today, so let’s get into it.

How Bay Windows Are Measured

Measuring a bay window is much like measuring any other window, albeit a bit more complicated. As these windows protrude from the house and tend to create a curve, there are several things that you need to do differently than you would with other types of windows.

Some would say that the process is the same as that of measuring bow windows, but they would be mistaken. That’s because bow windows usually consist of a single or a few curved windows, while bay windows are actually a few or more windows placed next to each other in a curved shape. That makes making measurements for both very unique. 

The Step-by-Step Method

It’s always easiest to follow a simple, step-by-step method:

  1. Measure the width of each of the individual end window panels. You need to do this correctly. Start from the inner wood return or the frame of the window. That’s where the casing trim meets the window frame. Start there and finish in the middle of the joint with the next window. The space between these two exact areas is what you need to measure precisely for all the windows that will be replaced. Except for the central window, which we’ll talk about in the third step. 
  2. Measure the height of the window by once again starting at the inner wood return or the frame. You need to end at the same location on the other side. Do this for a few windows to make sure you’ve got the exact height of all of them.
  3. As the center window usually has a different width than the other windows (the height is naturally the same with all windows) – you will need to measure it separately as well. Measure the space between the middle of the joint to the attached windows on both sides.

As you can see, measuring bay windows is not too complicated. They are made from regular windows. Most of what you need to do is the same as with other windows. You only need to be careful to account for the fact that these windows are mostly framed next to each other, not the wall. That’s why you need to be careful to measure the width and height between them accurately.

The Bottom Line

If you follow these instructions carefully and repeat the measurements to make sure no mistakes were made – you will be fine measuring your bay window. However, if you need some assistance, feel free to schedule a free window estimate with us.