What is the standard door size for internal doors in the UK?

Standard sizes for internal doors in UK

Looking to renovate your living space or build a new home in the UK? Understanding the standard door size for internal doors is crucial for a seamless and visually appealing outcome.

Typically, internal doors in the UK have a standard height ranging from 1981mm to 2032mm and a width of 762mm. The standard thickness is around 35mm, ensuring structural integrity without compromising on elegance.

Internal Door SizesMilimetresFeetInches

However, there’s more to consider than just these technical dimensions. From custom door sizes to accommodating wheelchair access, this comprehensive guide covers all you need to know for a perfect fit. Whether you’re revamping an existing room or designing a new one, make informed decisions to create a functional and stylish living environment with our complete door sizing insights.

Create the home of your dreams with the right door size – start your home improvement journey today!

The UK standard door size is 1981 x 762 x 35mm


The standard height for internal doors in the UK typically ranges from 1,981 mm (approximately 6 feet 6 inches) to 2,032mm (approximately 6 feet 8 inches). This height accommodates most standard door frames and ensures adequate clearance for easy passage. It’s essential to measure the door frame accurately to ensure a perfect fit for your chosen door.


The standard width of an internal door in the UK is usually 762mm (approximately 2 feet 6 inches). This width is commonly used for bedroom doors, bathroom doors, and other interior access points. For wider doorways or to accommodate wheelchair access, wider options such as 838mm (approximately 2 feet 9 inches) and 915mm (approximately 3 feet) are also available. Measure the doorway width precisely before selecting a door to avoid any inconveniences during installation.


Internal doors in the UK generally have a standard thickness of 35mm (approximately 1.375 inches). This thickness provides structural integrity while ensuring compatibility with most door frames. However, for fire-rated doors or special requirements, thicker door options might be available. Consider the specific needs of your home when choosing the appropriate door thickness.

Considerations for Non-Standard Door Sizes

In some cases, your home may require non-standard door sizes to fit unique architectural features or cater to personal design preferences. Many manufacturers offer custom door sizes, allowing you to tailor the doors to suit specific openings. If you encounter non-standard door size requirements, consult with professionals to ensure a proper fit and a cohesive look.

Door Frame Dimensions

Remember that selecting the right internal door also involves considering the dimensions of the door frame. The frame should be accurately measured to ensure a perfect fit for your chosen door. Properly measuring the door frame dimensions will save you time and effort during the installation process and prevent unnecessary adjustments.

Swing Direction

Before finalizing your internal door choice, consider the swing direction of the door. In the UK, internal doors typically swing inwards, but there may be exceptions depending on the room layout and design preferences. Make sure there is enough clearance in the room to accommodate the door’s swing without hindering any furniture or fixtures.


Knowing the standard door size for internal doors in the UK is vital for a successful home improvement project. By considering the height, width, thickness, frame dimensions, and swing direction, you can select the perfect door that seamlessly fits into your living space. Whether you’re aiming to enhance your home’s aesthetics or improve its functionality, these dimensions will help you make informed decisions and create a harmonious living environment.

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