Casement Window Hold Open: A Comprehensive Guide to Options and Installation

Casement windows have been a popular choice for homeowners for centuries due to their versatility, functionality, and aesthetic appeal. They are hinged at the side and swing open either inwards or outwards, providing excellent ventilation and unobstructed views. One of the essential features of casement windows is their ability to hold open in a desired position, allowing for optimal airflow and natural light. In this comprehensive guide, we will explore various options for holding casement windows open and discuss their installation process in detail.

The Importance of a Casement Window Hold Open Mechanism

A reliable hold open mechanism is crucial for the safe and efficient operation of casement windows. Without it, the window may slam shut unexpectedly, posing a risk to the safety of occupants and potentially causing damage to the window itself. Furthermore, a secure hold open mechanism ensures that the window remains open at the desired angle, allowing for optimal ventilation and light control.

Casement Window Hold Open Options

There are several options available for holding casement windows open, each with its own set of advantages and considerations. Some of the most popular options include:

Friction Stays

Friction stays are the most common hold open mechanism for casement windows. They are metal bars that are attached to both the window sash and the frame, providing a hinge-like action. The friction between the two bars holds the window open at the desired angle. Friction stays are available in various lengths and strengths, making them suitable for a wide range of window sizes and weights.

Casement Stays

Casement stays are traditional hold open devices that consist of a metal bar with holes and a corresponding pin. The bar is attached to the window sash, and the pin is fixed to the frame. To hold the window open, the pin is inserted into one of the holes on the bar, securing the window at the desired angle. Casement stays are available in various materials, finishes, and designs, making them an attractive option for homeowners seeking a classic look.

Restrictor Hinges

Restrictor hinges are a type of friction stay that includes a built-in locking mechanism. This feature allows the window to be locked in a partially open position, providing ventilation while maintaining security. Restrictor hinges are particularly useful for homes with children or pets, as they prevent the window from being opened too wide.

Telescopic Stays

Telescopic stays are a less common option for holding casement windows open. They consist of two interlocking metal tubes that extend and retract as the window is opened and closed. A locking mechanism holds the tubes in place, securing the window at the desired angle. Telescopic stays are typically used for larger or heavier windows, where other hold open mechanisms may not provide sufficient support.

Installation Considerations

When selecting a casement window hold open mechanism, it is essential to consider the size and weight of the window, as well as the desired level of security and ease of operation. It is generally recommended to consult with a professional window installer to ensure that the chosen mechanism is suitable for your specific needs and that it is installed correctly.

Installation of a casement window hold open mechanism typically involves the following steps:

1. Measure and mark the desired position: Determine the optimal location for the hold open mechanism, taking into account the window size, weight, and desired opening angle. Mark the position on both the window sash and the frame.

2. Attach the mechanism: Following the manufacturer's instructions, attach the hold open mechanism to the window sash and frame using the provided screws or other fasteners. Ensure that the mechanism is securely fastened and operates smoothly.

3. Test the functionality: Open and close the window several times to ensure that the hold open mechanism functions correctly and holds the window securely in the desired position.

4. Make adjustments if necessary: If the window does not hold open as desired or if the mechanism is difficult to operate, make any necessary adjustments to the mechanism's position or tension.

By understanding the various options available for holding casement windows open and following the proper installation procedures, homeowners can enjoy the many benefits of these versatile windows. With the right hold open mechanism in place, casement windows provide excellent ventilation, natural light, and an attractive appearance that enhances any home.

Casement Window


Casement windows are the most common style of window. They feature hinged panels that swing open and closed. Casement windows are available in single panels or multiple panels. The direction a door swings, either to the right or the left, is called the handing. In addition to handing, window are identified as either inswing or outswing depending on whether they open into the house or towards the outside.


Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.


Freedom to dream "truly custom-made"

Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.


This newly built private house is in Sydney, Australia. The area occupied by the fenestration system in our scheduled design drawings was up to more than 110 square meters. A wide range of design details made the perfect mix of modern aesthetics and traditional sophistication, the simulated vertical hung windows with tilt & turn opening systems in this home are absolutely breathtaking. SDLS (Simulated Divided Lites with Spacer Bar) brings some historical vintage feeling to the whole building without losing any energy saving performance. Long narrow fixed windows creating larger-than-life expenses, coupled with German high-end systems made this project stand out from the rest.

Simulated Hung Window with Tilt & Turn Openings

The client's idea was to maintain a certain vintage feel, and our aim was to meet the energy efficiency needs and standards of modern houses as much as possible while maintaining a retro design. Doorwin’s 61S simulated hung windows with tilt & turn openings is a respectful modernization of a classic architectural masterwork.

Why choose the tilt and turn opening method?

Because it generally has better air seals than sliding, single hung, or double hung window frames. Tilt and turn windows form a complete seal when fully closed, this means they are less prone to water leakage, and cold draughts and you’ll keep more of your heating indoors where it belongs. They can be opened in the upper tilt way to ventilate at a minimum opening status and are easy to clean outside of the glass; when there’s a good day, they can be opened as normal inward casement windows.

Large Energy Efficient Fixed Windows

Our well-crafted bespoke systems enhance the functionality and panoramic view of this modern house.

Huge, fixed glass walls up to seven meters long and two meters high bring great lighting and open views, making it really refreshing to the mind. Five meters high long narrow windows give the whole building a contemporary aesthetic.

Every window’s placement and shape not only add to the uniqueness of this home but also provide a more energy-saving ability for the owners.

Doorwin energy-efficient integrated glazing units feature double-pane glass, warm-edge spacers, argon gas fill, Low-E coatings, and fully tempered glass, they can not only create a comfortable and natural indoor environment but also save electricity bills and heating bills of more than 100 USD for the owner, it’s a real bargain compared to choosing a regular glazing set.

Custom Designed Thermal Break Aluminum Entry Door

Aluminum Door offered an air of uniqueness and elegance to a home. With their luxurious patterns and beautiful finishes, it provides this house with a bounty of aesthetics and security. Aluminum entry doors allow you to resist any weather extremes, corrosion, and pests. So aluminum is one of the most resilient and durable materials you can select for front doors considering the price/performance ratio.

With pieces of double panes, and Low-E tempered glass. The door provides a good insulation performance.

Custom Designed Grilles and Transom

Divided lite windows and doors offer unique architectural solutions for buildings without compromising energy efficiency or aesthetics. Doorwin provides multiple muntin and glass options to customize your divided lite windows and doors. Further customization is available with a variety of colors and materials, creating an infinite number of design combinations to best suit your style.

In this project, we use SDLS (simulated divided lites with spacer bars), these bars permanently adhere to both sides of the glass, and spacer bars are installed between the glass, this is the most energy-efficient way to create the look of classical décor grilles. The windows in the bathroom bedroom and study have an Arch Transom Design, making these rooms, which are often used by the owner, have some traditional aesthetics.

BTW, Doorwin offers free design assistance, so if you need a custom design like this one, contact us right away and we will provide you with the most aesthetically and functionally pleasing design solution.

German Imported Hardware System

For windows and doors, hardware is as important as the engine is to the car. The continuous technological innovation of the European hardware industry has strongly promoted the performance improvement and functional innovation of windows and doors. In this project, Doorwin uses Hoppe™ multi-point locks, hinges, and handles from Germany.

Multi-point lock systems provide not only the burglar-resistance but also a tighter compression seam, making the window keeps good energy-efficient performance. Together with Technoform Bautec’s insulation edge bond and sealant strips, these make up our products' top insulation and energy-saving performance.

Save Your Money On Installation Costs

We have several international patents to reduce clients’ labor costs, such as our unique flanges and assembly type tubular design, which is different from the other products on the market. What sets us apart among Chinese counterpart is that all our products are equipped with nail fin structures for quick and easy installation. Labor costs during installation may exceed of the window and door price, therefore, our exclusive patent allows users to not only get a significant increase in installation efficiency, but also greatly reduce the labor cost of window and door installation. A cost that may bring you unexpected savings that far exceed the price difference you may care about now.

Free Design Assistance

With our own expertise, we provided the no-cost design development and contract documentation with CAD & BIM drawings, including elevation, details about the project, and installation help.

Before production, we will provide accurate sample drawings, which will clearly show the cross-sectional pattern, size, opening method and direction, pattern of the warm spacer, and the installation nodes. We will not go into production until you have signed off on the drawing to ensure that you receive a final product that meets the exact requirements of your project.

About Doorwin

Doorwin's professional packing system guarantees all products are delivered safely and without any damage. We apply a four-point packing system. Firstly, adhesive plastic film is applied on interior wood frames and exterior aluminum frames to avoid scratches on the surface. Then, a paper board is applied after we apply air bubble film surrounding the whole windows/ doors to avoid any destruction or clash. Lastly, we place them into a durable non-fumigation plywood crate to avoid any possible damage during transportation.

With years of experience shipping our products worldwide, we could guarantee to ship our products to their final destinations intact and without any damage.

About Doorwin Factories

Doorwin is one of the most professional window & door manufacturers are known for its great customized products. In Doorwin, a variety of colors, styles, and sizes of products are available to meet the client’s unique requirements. We own three ISO9000-certified modern factories in China. With a factory area of 20,000 m2 and a production capacity of 100,000 m2 per year. Doorwin Group has the scale to ensure timely delivery and the flexibility to reduce manufacturing lead times to as short as 18 days.