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Internal Doors

Internal doors have hundreds of designs, styles and sizes. From traditional shaker style; to modern contemporary designs like Ely Oak. Glazed or non glazed doors; to bevelled and non bevelled. High quality timber brands like Deanta, JB Kind, and LPD Doors.

If you're interested in creating your own internal door, you can view our door visualiser.

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    LPD Tres Fully Finished Charcoal Black FD30 Fire Door 1981 x 762 x 44mm (30 Inch)

    LPD Tres fully finished charcoal black FD30 fire door 1981 x 762 x 44mm combining modern style with certified fire protection.
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    LPD Tres Fully Finished Charcoal Black FD30 Fire Door 1981 x 838 x 44mm (33 Inch)

    LPD Tres fully finished charcoal black FD30 fire door 1981 x 838 x 44mm ideal for contemporary interiors.
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    LPD Tres Fully Finished Walnut Door 1981 x 686 x 35mm (27 Inch)

    Achieve a bold, modern look in any living space with our Tres in walnut, with contrasting grain patterns to draw in the eye. These doors come pre-finished or Fully Finished, meaning they do not require any further treatment and therefore ready to hang...
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    LPD Tres Fully Finished Walnut Door 1981 x 762 x 35mm (30 Inch)

    LPD Tres fully finished walnut internal door 1981 x 762 x 35mm featuring rich walnut tones and modern design.
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    LPD Tres Fully Finished Walnut Door 1981 x 838 x 35mm (33 Inch)

    LPD Tres fully finished walnut internal door 1981 x 838 x 35mm supplied with a premium factory finish.
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    LPD Tres Fully Finished Walnut FD30 Fire Door 1981 x 686 x 44mm (27 Inch)

    Achieve a bold, modern look in any living space with our Tres in walnut, with contrasting grain patterns to draw in the eye. These doors come pre-finished or Fully Finished, meaning they do not require any further treatment and therefore ready to hang...
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    LPD Tres Fully Finished Walnut FD30 Fire Door 1981 x 762 x 44mm (30 Inch)

    LPD Tres fully finished walnut FD30 fire door 1981 x 762 x 44mm providing certified fire resistance with elegant walnut styling.
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    LPD Tres Fully Finished Walnut FD30 Fire Door 1981 x 838 x 44mm (33 Inch)

    LPD Tres fully finished walnut FD30 fire door 1981 x 838 x 44mm combining fire safety with premium design.
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    LPD Tribeca 3L Black Primed Plus Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    An adaption on our industrial range, the Tribeca features three generous clear glazed panels which are ideal for maximising natural light in your home. Constructed using sleek and slender primed plus black beading and a decorative lock block which is...
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    LPD Tribeca 3L Black Primed Plus Clear Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Tribeca 3 light black primed plus clear glazed door 1981 x 762 x 35mm ready to paint with modern industrial styling.
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    LPD Tribeca 3L Black Primed Plus Clear Glazed Door 1981 x 838 x 35mm (78 x 33)

    LPD Tribeca 3 light black primed plus clear glazed door 1981 x 838 x 35mm bringing light into contemporary interiors.
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    LPD Tribeca 3L Black Primed Plus Reeded Glazed Door 1981 x 686 x 35mm (27 Inch)

    An amazing modern and industrial design with a retro twist. Featuring three generous reeded glazed panels, this door is ideal to let natural light flow throughout your home whilst also preserving your privacy. The textured glazing is shaped into...
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    LPD Tribeca 3L Black Primed Plus Reeded Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Tribeca 3 light black primed plus reeded glazed door 1981 x 762 x 35mm providing privacy while allowing light through.
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    LPD Tribeca 3L Black Primed Plus Reeded Glazed Door 1981 x 838 x 35mm (33 Inch)

    LPD Tribeca 3 light black primed plus reeded glazed door 1981 x 838 x 35mm ideal for modern living spaces.
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    LPD Tribeca 3L Black Primed Plus Tinted Glazed Door 1981 x 686 x 35mm (78 x 27)

    A cool and unique internal door, the Tribeca features Primed Plus Black decorative beading and an appealing solid lock block which is perfect for your matching accessories. This door is benefited from three generous glazed panels. Using tinted glazing,...
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    LPD Tribeca 3P Black Primed Plus Door 1981 x 686 x 35mm (78 x 27)

    In an elegant primed plus black, the Tribeca three panel door features decorative beading. With a solid core, this is in a understated internal door and will give your home an industrial feel. Perfect for modern homes, this door will match all interior...
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    LPD Tribeca 3P Black Primed Plus Door 1981 x 762 x 35mm (78 x 30)

    LPD Tribeca 3 panel black primed plus internal door 1981 x 762 x 35mm ready for your chosen top coat.
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    LPD Tribeca 3P Black Primed Plus Door 1981 x 838 x 35mm (33 Inch)

    LPD Tribeca 3 panel black primed plus internal door 1981 x 838 x 35mm offering a striking industrial inspired design.
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    LPD Tribeca Sidelight Black Primed Internal Glazed Door with Lock Block 1981 x 579 x 35mm (78 x 23)

    LPD Tribeca Black Primed glazed sidelight with lock block is ideal for stylish room divider configurations. Buy online today.
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    LPD Tribeca W6 Black Primed Internal Glazed Demi Panel 1981 x 292 x 35mm (78 x 12)

    LPD Tribeca W6 Black Primed Internal Glazed Demi Panel 1981 x 292 x 35mm designed to complement Tribeca room divider systems and maximise natural light.
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    LPD Tribeca W8 Black Primed Internal Glazed Door 1981 x 579 x 35mm (78 x 23)

    LPD Tribeca W8 Black Primed Internal Glazed Door 1981 x 579 x 35mm delivers an industrial style glazed design with a paint ready black primed finish.
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    LPD Utah 3L Fully Finished Oak Clear Glazed Door 1981 x 610 x 35mm (24 Inch)

    Three, slim, vertical panels featuring clear glazing, are surrounded by pre-finished oak. These doors come pre-finished or Fully Finished, meaning they do not require any further treatment and therefore ready to hang. Remember to treat any untreated...
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    LPD Utah 3L Fully Finished Oak Clear Glazed Door 1981 x 686 x 35mm (27 Inch)

    LPD Utah 3 light fully finished oak clear glazed door 1981 x 686 x 35mm with premium oak finish and clear glazing.
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    LPD Utah 3L Fully Finished Oak Clear Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Utah 3 light fully finished oak clear glazed door 1981 x 762 x 35mm allowing natural light to flow through your home.

Internal Doors

Wooden internal doors are traditionally used to create an occasional barrier between rooms whilst creating privacy. However, they have also taken up the role of helping to create a specific appearance to a home, whether that’s a traditional or contemporary one.

At Howarth, we currently offer a vast range of interior doors in 80+ types of doors, which are available in 10+ styles. The types of doors include:

Glazed doors, which are available as clear, obscure, and decorative to suit the needs of different areas of your home. These are a simple method of adding light to dark areas, such as hallways.

Fire doors are aimed to help protect your home in the event of a fire. All our fire doors meet the necessary building regulations. All fire doors can be chosen to match or compliment standard doors, and many of our popular door ranges are available in a fire door option.

Pre-Finished doors are ready to be hung straight away and do not need paint or stain to be applied. Pre-finished is also a good choice if you are short on time.

Unfinished doors may require sanding down to prepare them for paints and stains. These are a great option for if you have a specific colour in time, perhaps to match existing mouldings or furniture. At Howarth, we recommended this type of door for customers who are looking for a customisable option.

We also offer other types of doors, such as doors with glass, bifold doors and oak doors - which are a few of our most popular and recommended options.

We also sell a wide range of paints, stains, and preservatives to help you finish the job.

For further information and expert advice regarding wooden internal doors, please contact your friendly local Howarth branch.

Frequently Asked Questions

How much can I trim off an internal fire door?
Make sure to not trim off more than 5mm per side.
What size hinges do I need for internal doors?
You will need 75mm hinges for a 35mm thick internal door.
How wide is a standard internal door?
A standard internal door has a width of 762mm x 1981mm, which equates to a width of 2ft 6in.
What is the smallest internal door size?
The smallest internal door size Howarth offers is 1981mm x 457mm, but we also offer a made to measure service.
How much does an internal door weigh?
Based on the 1981mm x 457mm door being our smallest, it weighs approximately 21kg. Our biggest and heaviest door at 2040mm x 826mm weighs around 39kg.
How to measure for new internal doors?
First measure the width - across the top, the middle and bottom. The largest measurement will be your door width. Then, measure the height within the frame - at the left-hand side, centrally and at the right. The largest measurement is your door height.
How to hang an internal wooden door?
To hang an internal wooden door, you must first unscrew the existing door from your home. The new door will then need to be trimmed to size. However, before cutting a door down, always measure it against the open door as a template and note where to plane or cut down if necessary. Use a panel saw to lower the height of the new door by more than 6mm. Sand it smooth after that. Cutting off less than 6mm requires only a hand or power plane. The hinge pivots (edges) should extend beyond the frame edge. Remove the hinges from the door frame and line them with your pencil markings on the edge of the door. With a chisel and mallet, tap along the shape of the hinge forms. Check that the chisel's "bevel" (sloped edge) is facing the waste wood. Check for flush hinges and fasten them with one screw per hinge. Make a beginning hole with a screw or a bradawl that is slightly smaller than the screw. After that, you may begin installing your new door. While the door is supported on wedges and at right angles to the frame, secure the hinge flaps to the door frame. To allow for adjustments, use only one screw. Make sure the door opens and closes smoothly. If it does, you can then replace the door's remaining screws.
Can you paint concrete slabs?
Yes, you can paint concrete slabs. Make sure you clean the concrete slabs thoroughly and prep them before painting.

How to guides

A Guide to Choosing Interior Doors

Looking for internal doors, but don't know where to start? Our guide is here to help.

Introducing Jigtech

Discover the innovative tool that speeds up the installation of doors.

How to install an internal door

How to install an internal door guide including delivery and storage things to consider.

10 Things to Consider when purchasing internal oak doors

A guide explaining what things to consider when purchasing doors.

Internal Door Fitting Instructions

Do's and Don'ts when it comes to fitting your internal doors.

Understanding Door Construction - JB Kind Doors

An article explaining the different door constructions - read more to find out.

Customer Inspiration