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18 inch (457mm) Internal Doors

If you're looking for a narrow door, our range of 18-inch (or 457mm) internal doors has options to suit every interior. From pre-finished oak doors, to white primed styles, all our internal doors combine premium quality with an affordable cost. Choose between glazed or solid doors, with panel or flush designs available too.

457x1981x35mm (18") Farley Oak 5 Panel Internal Doors

457x1981x35mm (18") Farley Oak 5 Panel Internal Doors


Unfinished Internal Doors | Climadoor
457mm / 18"

£67.30
457x1981x35mm White Suffolk Internal Doors

457x1981x35mm White Suffolk Internal Doors


Fully Finished Internal Doors | Climadoor
457mm / 18"

£73.99
457x1981x35mm (18") White ISEO Prefinished Internal Doors

457x1981x35mm (18") White ISEO Prefinished Internal Doors


Fully Finished Internal Doors | Climadoor
457mm / 18"

£75.99
457x1981x35mm (18") Mexicano Oak Door

457x1981x35mm (18") Mexicano Oak Door


Unfinished Internal Doors | Climadoor
457mm / 18"

£79.99
457x1981x35mm (18") Mexicano Oak - Prefinished Door

457x1981x35mm (18") Mexicano Oak - Prefinished Door


Fully Finished Internal Doors | Climadoor
457mm / 18"

£102.99
457x1981x35mm (18") ISEO Oak Solid Core Door

457x1981x35mm (18") ISEO Oak Solid Core Door


Fully Finished Internal Doors | Climadoor
457mm / 18"

£112.99
0 x 0xmm ISEO Oak 4 Light Clear Glass - Prefinished Door

0 x 0xmm ISEO Oak 4 Light Clear Glass - Prefinished Door


Fully Finished Internal Doors | Climadoor
457mm / 18"

£199.99
457x1981x35mm (18") Vancouver 5P Oak - Prefinished Door

457x1981x35mm (18") Vancouver 5P Oak - Prefinished Door


Fully Finished Internal Doors | LPD Doors
457mm / 18"

£145.52
£103.99
457x1981x35mm (18") Oak Shaker 1 Light - Clear Door

457x1981x35mm (18") Oak Shaker 1 Light - Clear Door


Unfinished Internal Doors | Climadoor
457mm / 18"

£103.99
457x1981x35mm (18") Oak Shaker 1 Light - Frosted Door

457x1981x35mm (18") Oak Shaker 1 Light - Frosted Door


Unfinished Internal Doors | Climadoor
457mm / 18"

£86.24
£145.99
457x1981x35mm (18") Ely Oak Door

457x1981x35mm (18") Ely Oak Door


Unfinished Internal Doors | Deanta Doors
457mm / 18"

£89.78
457x1981x35mm (18") Ely Oak - Prefinished Door

457x1981x35mm (18") Ely Oak - Prefinished Door


Fully Finished Internal Doors | Deanta Doors
457mm / 18"

£117.45
457x1981x44mm (18") Ely Oak - Prefinished Door

457x1981x44mm (18") Ely Oak - Prefinished Door


Fully Finished Internal Doors | Deanta Doors
457mm / 18"

£143.10
457x1981x35mm (18") Seville Oak - Prefinished Door

457x1981x35mm (18") Seville Oak - Prefinished Door


Fully Finished Internal Doors | Deanta Doors
457mm / 18"

£118.13
457x1981x35mm (18") Shaker Glazed White Door

457x1981x35mm (18") Shaker Glazed White Door


Primed Internal Doors | Climadoor
457mm / 18"

£89.99
457x1981x44mm (18") Seville Walnut Door

457x1981x44mm (18") Seville Walnut Door


Fully Finished Internal Doors | Deanta Doors
457mm / 18"

£225.75
457x1981x35mm (18") Seville White Door

457x1981x35mm (18") Seville White Door


Primed Internal Doors | Deanta Doors
457mm / 18"

£71.40
457x1981x35mm (18") Mexicano White Door by LPD

457x1981x35mm (18") Mexicano White Door by LPD


Primed Internal Doors | LPD Doors
457mm / 18"

£82.19
457x1981x35mm (18") Suffolk Oak - Prefinished Door

457x1981x35mm (18") Suffolk Oak - Prefinished Door


Fully Finished Internal Doors | XL Joinery Doors
457mm / 18"

£112.50
457x1981x35mm (18") Palermo Oak - Prefinished Door

457x1981x35mm (18") Palermo Oak - Prefinished Door


Fully Finished Internal Doors | XL Joinery Doors
457mm / 18"

£126.79
457x1981x35mm (18") Salerno Oak Door

457x1981x35mm (18") Salerno Oak Door


Unfinished Internal Doors | XL Joinery Doors
457mm / 18"

£195.64
457x1981x35mm (18") Pattern 10 Oak Door

457x1981x35mm (18") Pattern 10 Oak Door


Unfinished Internal Doors | XL Joinery Doors
457mm / 18"

£111.67
457x1981x35mm (18") Worcester Oak 3 Panel Door

457x1981x35mm (18") Worcester Oak 3 Panel Door


Unfinished Internal Doors | XL Joinery Doors
457mm / 18"

£126.08
457x1981x35mm Palermo Oak Internal Doors

457x1981x35mm Palermo Oak Internal Doors


Unfinished Internal Doors | XL Joinery Doors
457mm / 18"

£101.54
457x1981x35mm (18") Shaker 4 Panel Oak Door

457x1981x35mm (18") Shaker 4 Panel Oak Door


Unfinished Internal Doors | XL Joinery Doors
457mm / 18"

£117.08

The Express Doors Direct 18 inch (457mm) Internal Doors Range

Not all doorways are created equal.

Just because you have unusual sized doors, we don't think you should have to spend hours searching for stylish options. This is why we stock our all our door designs in a variety of widths, including non-standard metric sizes.

Whether you're looking for a traditional cottage-style Ely Oak door or a simple Shaker-Style door we have options in a range of sizes, including a slim-but-sleek 457mm (18 inch) width.

A narrow internal door that looks good in every home

Getting the right internal door is an important finishing touch for any room. From sleek, understated flush doors for contemporary homes to perfect panels for your period property, it's important to get a door that suits you're design scheme.

This is why we offer a wide choice of interior doors in a 457mm (18-inch) product size. From the dark luxury of walnut, to the rustic flexibility of oak, we have plenty of door styles for you to explore.

If you're on a tight budget, our clear pine options feature a beautiful woodgrain, while our white-primed doors offer a compromise between the convenience of fully finished door and the lower cost of unfinished.

Narrow doorways come in narrow corridors, which can lead to dark, cramped feeling spaces. If you want to open up your rooms and hallways, we have a collection of glazed doors to pick from too. If you need to protect your privacy while letting the light flow, we have frosted glass panels, and we only use toughened glass so you can keep your home safe.

Whether your selection type leans more towards the solid look of unglazed doors, of course we have plenty of those to search through too.

Make your interior doors a feature

Our 18-inch doors may be slim but that doesn't mean they have to slip into the background. They're all attractive enough to stand out in their own right, but their

If you do decide to make a statement with your internal doors, our white primed doors are the perfect starting point. They've been carefully primed to take a coat of paint easily - they have no need for endless coats and a give streak-free finish every time.

If you would rather keep that traditional woodgrain look, then our unfinished timber doors can be stained or varnished for subtle shade changes to help them match the space they are in.

More than simply single leaf doors

Here at Express Doors Direct, we have everything you need to get your doors looking their best. Take a look at our selection of door handles, hinges and door frames to help you get your door hung in no time, without having to search across the web to find all the hardware you need.

If you're looking to open up your home, we have bi-fold and French interior doors in the same wide range of options as our 18-inch single leaf doors. We also have a wide choice of external doors to help you keep your home consistent, inside and out.

Why Choose Express Doors Direct?
All Prices Include VAT

With no hidden add-ons, all our prices on screen include VAT

10 Year Guarantee

Buy safe in the knowledge that all our products come with a 10 year guarantee as standard

3-7 Working Days Delivery*

With stock available to ship immediately, we can supply to your property in 3-7 working days. *Exceptions apply.

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