A window recess, also known as a window reveal, is the space or gap between the window's actual glass and the surrounding wall into which the window is installed. This measurement is critical for determining the type of mounting—whether it will be an inside mount nestled within the recess or an outside mount that covers the wall surface around the window.

The Role of Window Recess in Window Design and Installation

During the design or installation process, we will inquire about the existence and depth of your window's recess. It is crucial to identify any potential obstructions within the recessed area, such as windows that open inward or the presence of fly screens, as these can affect the installation method.

How to Measure Your Window's Recess

Measuring the recess involves determining the depth of the window. This is done using a metal tape measure to span from the front of the window pane to the edge of the window's architrave or the wall. For guidance on measuring your window's recess accurately, refer to our detailed measurement instructions here.

Recommendations Based on Recess Depth

If your window's recess has a clear depth of at least 70mm, we typically recommend an Inside Z-frame for a seamless and integrated look. For an explanation on how a Z-frame differs from an L-frame, and to understand which is suitable for your specific situation, you can find additional information here.

Window Recess vs. Window Sill

It's important to note that a window recess is distinct from a window sill. While a recess is concerned with the indented space where the window sits within the wall, a window sill is a protruding shelf-like structure at the bottom of the window on the inside of a room. This distinction is crucial when selecting the correct frame for your window treatment.