Georgian windows are popular for their symmetry, elegance and timeless character. Their balanced grid pattern can make a home feel refined and full of period charm. However, if you own a character property or are renovating a home with heritage-inspired details, you may want to enhance natural light whilst maintaining Georgian authenticity.
The Georgian design does not have to be synonymous with small timber windows. With the right materials, proportions and glazing bar configuration, it is possible to create generously sized openings that still feel appropriate for a period property.
Whether you want a classic Georgian arrangement, a larger picture window with bars, or a bay window that floods a room with natural light, Origin gives you the flexibility to achieve the look you want without compromising performance, security or day-to-day usability.
Click on one of the sections below to learn more:
Aluminium Georgian-style windows can be manufactured in large sizes while maintaining slim sightlines
Understand how to create the most visually pleasing geometric window grid
The options can depend on the chosen system and the window design
Explore casement windows, picture, bay windows and French windows for an expansive view
Follow three simple stages from choosing your system, designing the grids and customising the details
Can you have large Georgian windows?
Yes, you can have large Georgian windows, but the maximum size and overall appearance will depend on the frame material, window style and manufacturer. Traditional timber windows can look beautiful, but timber is a heavy material and at larger sizes, it can be impractical. It will also require regular care to maintain its performance. Low-grade uPVC often needs bulkier frames to achieve adequate strength needed for larger window sizes which can compromise a premium aesthetic. Steel window frames can be exceptionally strong, but can be heavy at large sizes.
Aluminium provides a practical solution because it is both strong and lightweight. This means frames can support large expanses of glass while maintaining elegant sightlines and reliable operation.
Explore the benefits of aluminium Georgian windows
Achieving Georgian window proportions
The Georgian look is built around symmetry and balanced proportions. This means that scaling up to a larger window is not always as simple as adding more glazing bars, or increasing the size of each pane of glass. A Georgian window should feel proportional to the dimensions of the opening and the architecture around it.
For a wide opening, fewer, larger panels can maintain the Georgian authenticity without introducing a significant amount of extra profile. Consider using existing shapes and proportions in your home such as window ratios. Alternatively, you can aim to achieve the golden ratio of 1:16 - the rectangular ratio that we often find the most visually pleasing and one which is often found in everyday life.
True divides or astragal bars
One of the key decisions about your Georgian windows is the type of glazing bar. True divides separate the glass into individual units, giving a traditional and authentic appearance. Astragal bars are stuck onto the surface of a single glass unit to create the look of individual panes.

The type of bars available with Origin depend on the system chosen. The Slimline OW70 can be specified with either astragal or true glazing bars, whereas the Premium OW80 is only available with stick-on bars.
True divides can be a great option for creating Georgian authenticity and can be specified on OW70 systems up to 4.8m2. On the other hand, you can use astragal bars with OW80 and achieve sizes up to 7m2.
Large Georgian window styles to consider
Casement windows are a versatile choice because they can be configured in a range of sizes and opening styles, including fixed sashes. Tilt and turn windows are ideal when easy ventilation and practical cleaning access are priorities, while expansive picture windows are perfect for framing a garden view and maximising light. Bay windows and French windows are excellent for creating expansive views and offering a visual focal point in the home.

How to configure large Georgian windows
You’ll first need to explore your options based on the size and window type you want. The Premium OW80 Window offers the most expansive sizes (up to 7m2), though large sizes that would work for most homes are still possible with the Slimline OW70.
Next, your desired Georgian grid style will need to be specified. The OW70 can be specified with up to four horizontal glazing divides per sash. Astragal bars can also be used to achieve your perfect Georgian geometry and there is no limit horizontally and can be used vertically. Matching the grid design to the overall orientation and proportions across the whole sash can create a more considered look.
Finally, when it comes to finishing touches, Origin offers a wide range of colours, from heritage inspired pastels or bold and contemporary blacks. There are several handle options including vintage and modern styles.
Contact a local installer to start your project
Frequently Asked Questions
Are large Georgian windows energy efficient?
Larger areas of glass can increase the need for reliable thermal performance, which makes the window system and glazing specification especially important. Origin Aluminium Windows are designed to deliver modern thermal performance. The OW80 can achieve U-Values as low as 0.8 W/m²K when using triple-glazing and Aerogel.
Can you have large timber Georgian windows?
You can have large timber Georgian windows, however, timber can be heavier at larger sizes, may need thicker sections for strength, and usually requires more ongoing care, such as repainting or treating, to keep it in good condition.
What is the maximum size of a Georgian window?
With the Premium OW80, you can achieve total frame areas of up to 7m2.







