Internal French Doors

Internal French doors are a pair of glazed, hinged doors designed to divide or connect rooms within your home. Featuring large glass panels set within timber or engineered wood frames, they allow natural light to flow freely between spaces while giving you the flexibility to close rooms off for privacy, noise control, or temperature management. At Emerald Doors, we stock a wide range of internal French doors in oak, walnut, hardwood, and white primed finishes. Every door is backed by our quality guarantee, and we offer fast delivery across the UK.

Whether you are replacing an existing set of double doors or fitting French doors into a new opening, our collection includes traditional and contemporary styles to suit every home. Browse the full range below, or read on to find the right material, glass type, and size for your space.

Materials and Finishes

The material and finish you choose will set the tone for your room. Our internal French doors are available in the following options:

Oak Internal French Doors

Oak is the most popular choice for internal French doors in the UK. Our oak French doors use engineered construction with a solid oak veneer surface, which means you get the rich grain and warm colour of real oak without the risk of warping or splitting that solid timber can be prone to. Oak suits both traditional period properties and modern open-plan homes. Available in unfinished and pre-finished options.

Walnut Internal French Doors

Walnut offers a darker, richer tone that works well in contemporary interiors. Our walnut French doors feature an engineered core with a walnut veneer finish, providing a luxurious appearance with excellent stability. Walnut pairs particularly well with modern furniture and darker colour schemes.

White Primed Internal French Doors

White primed French doors arrive with a smooth base coat already applied, so you can paint them in any colour to match your existing decor. This is the most versatile option if you want to coordinate your French doors with painted skirting boards, architraves, or walls. They are also the most affordable option in the range.

Pre-finished Internal French Doors

Pre-finished doors are ready to hang straight out of the box with no painting, staining, or varnishing required. This saves time on installation and ensures a consistent, factory-applied finish. Available in oak, walnut, and white lacquer finishes.

Glazing Options for Internal French Doors

The glass you choose affects both the look and the function of your French doors. Here is a breakdown of the glazing options available across our range:

Clear Glass

Clear glass allows maximum natural light to pass between rooms and provides an unobstructed view from one space to the next. This is the most popular choice for living rooms, dining rooms, and kitchens where you want to maintain a visual connection between spaces.

Frosted Glass

Frosted glass diffuses light while obscuring the view, making it the ideal choice for bedrooms, bathrooms, utility rooms, and home offices where privacy is needed without sacrificing brightness.

Bevelled Glass

Bevelled glass features angled edges that catch and refract light, creating a decorative effect. This option adds a touch of elegance and works well in traditional or period-style interiors.

Decorative Glass

Decorative glass options include patterned, tinted, and textured finishes that add character to your doors. These are a good choice if you want your French doors to serve as a design feature in the room.

All glass used in our internal French doors is toughened safety glass, meeting the requirements of BS EN 12150 for internal glazed doors.

Internal French Door Sizes

Internal French doors are available in several standard sizes to fit most UK door openings. The sizes below refer to the overall width of the door pair (both leaves together), not the individual door leaf. Most doors in our range can be trimmed by up to 6mm on each side for a precise fit.

Size (Imperial)	Size (Metric)	Best For
46" x 78"	1168 x 1981mm	Small openings, cupboard-to-room dividers
48" x 78"	1220 x 1981mm	Standard internal doorways
54" x 78"	1372 x 1981mm	Medium living and dining room openings
60" x 78"	1524 x 1981mm	Large living rooms, kitchen-diners
66" x 78"	1676 x 1981mm	Wide openings, open-plan conversions

If your opening is wider than 66 inches, you can use two single doors with a pairmaker strip, or consider our internal French doors with side panels for openings up to 2.4 metres.

What Are the Benefits of Internal French Doors?

Internal French doors offer a combination of practical and aesthetic benefits that make them one of the most popular choices for room dividers in UK homes:

Increase natural light flow between rooms through large glazed panels
Create an open-plan feel while keeping the option to close rooms off
Improve home security with modern multipoint locking and adjustable hinge systems
Boost your property value by adding a premium design feature
Reduce heating and cooling costs with double-glazed or draught-sealed options
Require less maintenance than solid timber doors, with no weatherproofing needed
Fit most standard UK door openings, with sizes from 46 to 66 inches wide

French doors are also one of the most cost-effective ways to transform the feel of a room without structural work. Unlike knocking down a wall to create open-plan living, fitting a set of French doors takes a single day and is fully reversible.

Frequently Asked Questions About Internal French Doors

Are internal French doors a standard size?

Internal French doors come in several standard sizes in the UK, typically ranging from 46 inches to 66 inches wide and 78 inches tall. The most common size is 48 x 78 inches (1220 x 1981mm). Most doors can be trimmed by up to 6mm on each side for a precise fit within your existing frame.

Do internal French doors need a frame?

Yes, internal French doors need a door lining or frame to hang from. Some sets are sold as complete doorsets that include the frame, architrave, and pairmaker strip. Others are sold as door pairs only, meaning you will need to purchase the frame separately or use your existing one. Always check the product description to confirm what is included.

Can I get internal French doors in a bespoke size?

Yes. If your opening does not match standard UK door sizes, we offer custom-made internal French doors to fit non-standard frames. Contact our team to discuss your exact dimensions, and we will advise on the best options.

Are internal French doors energy efficient?

Internal French doors with double-glazed panels help retain heat between rooms, reducing the amount of energy needed to heat individual spaces. Even single-glazed internal French doors provide a better thermal barrier than an open doorway. For maximum efficiency, choose doors with good seals around the frame and glazing.