Window Stays

Beeswax 7" Quadrant Stay (Pair), from our current range.

What is a window stay?

A window stay is the hinged arm fitted to a casement window that holds it open at a chosen angle, rather than letting it swing freely or blow shut. A small stay pin, fixed to the window frame, locates into one of a series of holes along the stay's length, so the window can be fixed at different opening positions, from a narrow gap for ventilation to fully open. Two main styles are common: a straight peg stay and a hinged quadrant stay, which folds flat against the frame for a lower profile when the window is closed.

Stay pins themselves are a small but essential part of the assembly, and are often sold either included with the stay or separately as a spare part.

Where window stays are used

• Casement windows – the standard fitting for holding any casement window open at a set angle
• Roof lights and awning windows – similar stay mechanisms are used to control opening angle on angled windows
• Bottom-hung fanlight windows – a quadrant stay fitted to the frame also restricts how far a fanlight can open, doubling as a simple opening limiter
• Restoration projects – matching the original stay style is a common consideration on period window restorations

Choosing the right window stay

A few practical points are worth checking before you buy:

• Length – window stays are sold in a range of lengths; measure the window opening to choose the right size
• Peg or quadrant style – quadrant stays fold flat for a lower profile, while peg stays are simpler and more traditional
• Number of holes – more holes give finer control over the opening position
• Stay pins – check whether pins are included or need to be ordered separately

Related products

Browse our current range in Stays, or see the related Casement Fasteners guide.

Frequently asked questions

What length window stay do I need?

This depends on the size of your window opening; measuring the existing stay, or the window itself if fitting new, is the most reliable way to choose the correct length.

What's the difference between a peg stay and a quadrant stay?

A peg stay is a simple straight arm. A quadrant stay is hinged so it can fold flat against the window frame, giving a lower profile when the window is closed.

Can I buy replacement stay pins separately?

Yes, stay pins are generally available as a spare part, useful if the original has been lost or damaged without needing to replace the whole stay.

Back to the Window Furniture Guide, or explore the full Knowledge Centre.