
At C & L Windows, we understand that choosing the right door size is a crucial part of any home improvement project. Whether you are looking to install new front doors to spruce up your property in Gloucester, back doors that open onto your garden in the Cotswolds, or stylish bifold doors to enhance your Gloucestershire home, getting the dimensions right ensures a perfect fit, functionality, and aesthetic appeal. In this guide, we’ll take you through everything you need to consider when selecting the correct door size, helping you make an informed decision for your home.
Why Door Size Matters
The size of your door is not just about appearance; it impacts accessibility, security, energy efficiency, and overall practicality. For example, a front door that is too narrow might make it difficult to move furniture or appliances in and out, while one that is too wide could affect your home’s insulation. Similarly, back doors, including patio sliding doors and French doors, require precise sizing to offer smooth operation and blend seamlessly with your external space.
When planning your door installation in Gloucestershire, it’s important to consider the size of existing openings, the style of door you prefer, and how the door will be used daily. If you’re replacing old doors, measuring the current frame and aperture is a good starting point, but if you are building something new or altering your layout, careful planning of the exact door size is even more critical. Get in touch with our friendly team to find out more today.
Standard Door Sizes in the UK
In the UK, most internal and external doors come in standard sizes, but these can vary depending on the property’s age and design. For front and back doors, the most common widths are 762mm (about 2ft 6in), 838mm (2ft 9in), and 914mm (3ft). Heights tend to be around 1981mm (6ft 6in) or 2032mm (6ft 8in). However, some homeowners in the Gloucester and Gloucestershire areas may prefer bespoke sizes, especially when working with period properties or seeking a distinctive look.
French doors and bifold doors often require wider openings and can be customised in both height and width. Patio sliding doors typically come in larger sizes to maximise your view of the garden or patio area, but it’s important to balance size with ease of use and your home’s structural constraints.
Considering these dimensions in relation to your property can help you pinpoint the right door size. If you’re uncertain, our experienced team at C & L Windows in Gloucestershire can assist with measuring and offer expert advice tailored to your home. Get in touch with us today to discuss your project. Alternatively, head to our dedicated quote-building engine to start designing your dream door upgrade today.
Measuring Your Doorway
Accurate measurement is key to choosing the correct door size. Begin by measuring the height and width of the existing aperture or the space where the door will be installed. Use a metal tape measure and take measurements at several points to account for any unevenness in walls or frames. Remember to measure the width at the top, middle, and bottom, making a note of the narrowest point.
For external doors, it’s also essential to consider the thickness of the door and the type of frame. Many external doors are thicker than internal ones, due to added insulation and security features. French doors and bifold doors, in particular, require precise measurements to ensure they open and close smoothly without gaps or draughts.
If you’re installing new doors in Gloucestershire, such as bifold or patio sliding doors, measuring can be a bit tricky, especially when it comes to ensuring the track and frame fit perfectly into your opening. Our team at C & L Windows is happy to carry out professional site surveys to guarantee the perfect door size and fit. Contact us to arrange a visit and get a quote.

Choosing the Right Door Type Alongside Size
The type of door you’re installing will influence the ideal size and configuration. Front doors, like our composite doors, usually need to balance security, insulation, and style, often making a slightly narrower size more practical. Back doors, including French doors or patio sliding doors, highlight garden access, so they are typically wider and designed to create an open, airy feel.
Bifold doors, a popular choice in the Cotswolds and throughout Gloucestershire, provide a contemporary aesthetic with large glass panels and can be customised to fit anything from modest-sized apertures to wide expanses. This flexibility makes it possible to tailor door sizes to complement your home’s layout and lighting.
At C & L Windows, we offer a wide range of styles with bespoke sizing options to suit your home and lifestyle. Whether you’re after a traditional front door in Gloucester or modern bifold doors for your Cotswold home, we can help you choose the right size and style to enhance your property’s beauty and functionality. Want to learn more about the types of doors we offer? Get in touch with our team today.

Choose C & L For Doors in Gloucestershire Today
Selecting the correct door size is about much more than simply matching your existing framework. It affects your home’s security, energy efficiency, and visual appeal, particularly in regions like Gloucester, Gloucestershire, and the Cotswolds where both tradition and modernity influence architectural choices. Whether you’re considering front doors, back doors, French doors, patio sliding doors or bifold doors, the right measurements and expert advice are essential for a flawless finish.
At C & L Windows, we specialise in providing high-quality, custom door solutions across Gloucestershire and beyond. Ready to upgrade your home with perfectly sized doors? Contact us now to discuss your needs or get a quote. Your ideal door is just a call away.