
February 27, 2025 by WindowRama
Standard Casement Window Vs. Basement Egress Window System
When considering window installations for your home, particularly in areas like bedrooms and basements, it’s important to understand the differences between various types of windows. Two common types you may come across are the standard casement window and the basement egress window system. Though both are functional and serve their purpose in providing light and ventilation, they have specific applications, especially in terms of safety and legal requirements. In this blog post, we’ll dive into the key differences between these two window systems, helping you make an informed decision for your home.
What is a Standard Casement Window?
A standard casement window is a hinged window that opens outward, typically operated by a crank or lever. It’s a popular choice in homes due to its ease of use, great ventilation capabilities, and energy efficiency. Casement windows come in a variety of sizes and styles and are commonly used in living rooms, kitchens, and bedrooms.
While a standard casement window offers excellent airflow and a tight seal when closed, it doesn’t necessarily meet the specific building code requirements for emergency exits, especially in basement or bedroom applications. This is where the concept of egress becomes important.
What is Egress?
Egress refers to a safe and accessible exit from a room, particularly in the event of an emergency, such as a fire. The building code for egress windows mandates that certain rooms, like bedrooms and basements, must have windows that can be easily opened to allow escape. In general, an egress window must meet specific size and operational requirements to ensure it can be used as an emergency exit by both children and adults.
What is a Basement Egress Window System?
A basement egress window system is specifically designed for basements, where windows are often smaller and higher off the ground. These systems are installed with a larger window opening that meets the size and operational requirements of local building codes for emergency exits.
The key characteristics of a basement egress window system include:
- Larger Size: Egress windows must have a minimum opening of 5.7 square feet, with the smallest dimension being at least 20 inches in width and 24 inches in height. This ensures that the window can accommodate a person’s escape.
- Easy Operation: Egress windows must be operable without the use of special tools or keys. In most cases, they open inward or outward with minimal force required. This is a crucial safety feature, particularly in the event of an emergency when time is critical.
- Window Well: For basement egress windows that are below ground level, a window well is often installed to provide clearance for the window and allow easy access to the outside. These wells are often equipped with a ladder or steps, which ensures that anyone using the egress window can safely escape.
- Safety Standards: The window must be free of obstructions inside and out, meaning there shouldn’t be large items blocking the window or well. This ensures that the window is always ready for use in an emergency.
WindowRama has partnered with EgressPros, the leader in the industry.
While installing an egress window does require proper planning and expertise, it doesn’t have to be a stressful process. Partnering with professionals like Egress Pros ensures the job is done right, from start to finish. Installations take one-day with no mess.
Their team handles every step, including:
- Assessing your home and determining the ideal location.
- Ensuring compliance with local building codes.
- Installing the window with precision and care.
They make the process seamless, so you can enjoy the safety and aesthetic benefits of your new egress window without the hassle.

While both standard casement and basement egress windows can be cranked open to allow fresh air and light into a space, they are designed with different priorities in mind. Here’s a breakdown of the key differences:

Which Window is Right for You?
When deciding between a standard casement window and a basement egress window system, your primary considerations should be the location of the window and its intended use. If you are finishing a basement, converting it into a living space, or adding a bedroom in the basement, an egress window system is required to meet safety regulations. On the other hand, if you are simply installing a window in a living space above ground, a standard casement window will be sufficient for ventilation and aesthetics.
Always check local building codes for specific requirements in your area, as they may vary depending on your location. Consulting with a window installation professional can help ensure that your windows are both functional and compliant with safety standards.
Final Thoughts
Both standard casement windows and basement egress window systems serve important roles in providing ventilation, light, and safety to your home. However, if your project involves a basement bedroom or any space that could be used as a sleeping area, remember that egress windows are not only a recommendation—they are a legal requirement. By understanding these differences and making the right choice for your space, you can ensure both the safety and comfort of your home.