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The Anatomy of Casement Windows That You should Know

Casement Windows are designed to fit any window replacement, allowing fabricators and client’s maximum freedom. However, before purchasing casement windows for your home or workplace, it is necessary to understand the basic anatomy of a casement window in order to understand its advantages and benefits.

Casement windows brighten your space while also increasing the value of your home. To comprehend the anatomy of casement windows, you should be familiar with certain terminologies (components).

Given below are the terms which are commonly used:

Casement Frame

Non movable or fixed portion of the window/door attached to the wall and to which the sash is assembled.

Casement Sash

Sash is the moveable part of the window/door that holds the glass in place.

Glazing Bead

Profile which holds the glass or any other partition material.

Double- Window

Window with casements in at least two layers that operate independently.


Profile used within the frame, vertically, in a frame and/or sash.


Material added to individual sash or frame members to increase strength and/or stiffness.

Weather Pile Strip

Strip designed to reduce air infiltration and water penetration.


An espagnolette is a locking device, normally mounted on the vertical frame of a casement window/door. A handle or knob is connected to a metal rod mounted to the surface of the frame, about a meter above the floor

The anatomic terms for casement windows listed above will assist you in determining your needs for casement windows and selecting the best style for your home or office.

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