Internal bifolding doors are a versatile, attractive and popular option for creating open plan living spaces. But they're not the only choice. It's important to consider the type of room dividers available and their points of difference to understand what's best for you.
Choosing the right internal doors involves balancing aesthetics, available floor space, and how you intend to use your rooms. Whether you are creating a flow in open-plan areas or looking for a space-saving solution for a small bathroom, each door type offers distinct functional advantages. This guide compares internal bifold, French, and sliding doors to help you make an informed choice for your home.
The main difference between these two styles is how they manage space and connectivity. Internal bifold doors use a folding mechanism to stack multiple panels against a wall, allowing you to open up nearly 90% of the aperture. This makes them perfect for modern open-plan goals where you want to combine or separate rooms seamlessly.
Traditional French doors operate on standard hinges and swing open, creating a classic look. They also open up fully, giving you a flow between rooms. While they provide excellent natural light flow through large glass panels, they require a clear "swing zone" on the floor, making them less efficient for wide transitions compared to the compact stacking of bifold systems. The bigger the door panels, the more swing space is needed.
Internal French doors typically consist of two doors that meet in the middle and are best suited for standard-width doorways. An internal bi fold door uses a folding action to handle much wider spans.
While French doors are limited to a two-panel configuration, bifold sets can include between two and seven panels, offering much more flexibility for large room partitions.
Take a look at our range of internal french doors.
Internal sliding doors glide along a horizontal track, requiring zero floor space for a swing arc. They offer a great way to maximise space. We stock various types to suit different needs:
These slide directly into a hidden cavity within the wall for a completely minimalist look.
Take a look at our range of pocket doors.
These slide across the face of the wall, often used as a stylistic feature.
Take a look at our range of barn doors.
Operation: Panels overlap as they move, which means that unlike bifolds, sliding doors never fully stack out of sight; one panel usually remains visible in the door opening. For barn doors, the panel overlaps the wall. With pocket doors, it slides into the wall which requires more structural work.
Our internal bifold doors range provides extensive flexibility for different room dimensions.
Concertina doors are a specific type of bifold that folds panel-by-panel in a tight zig-zag motion. Unlike standard bifolds that may have larger individual panels, concertina styles use narrower slats that take up even less wall space when retracted. You can choose the stacking direction, either to one side or split from the middle, depending on your wall-side requirements and furniture placement.
Find out more about the different types of folding doors for more information.
The right configuration depends on your daily traffic and room layout:
Your choice of material and glass directly impacts privacy and durability.
We offer bifold internal doors, french doors and sliding doors in a wide range of materials and glazing options. You don't need to rule out a door type due to a material or glazing choice.
The final details define the look of your installation.
Check our article on where to use bifold doors around the home for full details.
When you choose to install bifold doors, you'll need a track system to support the sliding and folding motion. The weight of the door determines the track system needed.
Choosing the correct size is critical for a smooth installation, especially when moving between different door styles. The table and guide below compare the typical dimensions and opening requirements for internal bifold, French, and sliding doors.
|
Door Type |
Typical Opening Widths |
Standard Heights |
Best For |
|
French Doors |
1100mm – 1500mm |
1981mm – 2040mm |
Standard room transitions |
|
Bifold Doors |
610mm – 4652mm |
1981mm – 2078mm |
Small, narrow areas (slimline bifolds) to large open-plan areas |
|
Sliding Doors |
610mm – 2040mm |
1981mm – 2040mm |
Narrow corridors and cupboards |
Bifold doors are the most flexible option for wide apertures.
Understand internal bifold door sizing in our dedicated guide.
French doors are generally designed for more traditional, fixed-width openings.
Sliding door sizes depend heavily on whether you are installing a single door or a double set.
To help you budget for your home renovation, we have broken down the typical costs associated with purchasing and installing different types of internal doors. Please note that these are estimated ranges based on standard specifications and professional installation averages.
The upfront cost of your doors is largely determined by the complexity of the opening and the hardware required for operation.
Installation fees can vary significantly based on your location and the complexity of the job. For a high-quality finish and smooth operation, we recommend budgeting for professional fitting.
While it is tempting to focus only on the initial price, the long-term durability of your door affects its total value.
Opening width:
Over 1.8m? Choose a bifold door. Under 1.5m? French or sliding doors are best.
Full-width access:
Do you need an unobstructed opening? Pick bifold or French doors.
Limited swing space:
Need the floor space where a traditional door would swing open? Choose internal bifold doors or sliding doors.
Accessibility considerations:
All these door types can improve accessibility. Sliding doors are the simplest to operate for those with mobility challenges.
Budget constraints:
If you need to keep costs down, internal French doors are the cheapest to buy and to install.
Selecting the right internal door involves balancing your room's layout with your specific needs for light, accessibility, functionality and privacy. By weighing up your options for glazing, hardware, and configuration, you can find a door that truly transforms your home.
We recommend requesting a site survey or professional quote to ensure your new doors are a perfect fit. Whether you choose new internal bifold doors or a stylish alternative, Browse our full range today to start your project.
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Bring industrial-inspired design into your home with our collection of heritage steel-look doors. Available in bifold, French and internal door options, these on-trend designs offer the distinctive appearance of traditional steel doors with the practicality of modern materials. Browse our range today and transform your living space with striking heritage style doors.
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