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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 visualiser here.

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    JB Kind Aria Internal Fully Finished Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    Oak wood effect laminate internal glazed door with full length fluted black painted grooves. Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors. Visit our internal doors section of...
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    JB Kind Aria Internal White Primed Glazed Door 1981 x 686 x 35mm (78 x 27)

    White primed internal glazed door with full length fluted white grooves. Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors. Visit our internal doors section of the website to view...
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    JB Kind Blenheim Internal Fully Finished Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    Attractive oak glazed internal door with dark wood inlays, supplied fully finished. This door can be trimmed to the following specifications, for anything else please contact our customer helpline for bespoke door options: Maximum Trimming From Each...
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    JB Kind Cosmo Fully Finished Grey Glazed Internal Door 1981 x 686 x 35mm (78 x 27)

    Contemporary industrial style grey interior door with clear glass panels. Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors. Visit our internal doors section of the website to...
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    JB Kind Medina Fully Finished Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    Popular contemporary oak veneered internal door, glazed with clear diamond cut glass and supplied complete with varnish finish
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    JB Kind Thames 6 Light Internal Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    Oak cottage style internal door with six glazed apertures, supplied ready to finish. This door can be trimmed to the following specifications, for anything else please contact our customer helpline for bespoke door options: Maximum Trimming From Each...
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    JB Kind Thames Internal White Primed Glazed Door 1981 x 686 x 35mm (78 x 27)

    White cottage style half glazed internal door with grooved bottom panel, supplied primed. Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors. Visit our internal doors section of...
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    JB Kind Tigris Internal Fully Finished Light Grey Glazed Laminate Door 1981 x 686 x 35mm (78 x 27)

    Contemporary light grey laminate door with clear glass panel and etched lines, supplied fully finished. Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors. Visit our internal doors...
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    LPD Belize Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    The ever so popular five vertical panel design showcasing geometry in unfinished oak has a modern twist on a traditional style with the added benefit of a clear glazing panel with frosted lines which replaces half of the unfinsihed oak to let the light...
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    LPD Chelsea Clear Primed Plus Black Glazed Door 1981 x 686 x 35mm (78 x 27)

    An adaption on our industrial range, the Chelsea features four 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 DX 30s Oak Door 1 Light with Frosted Glass 1981 x 686 x 35mm (78 x 27)

    This 30's style door design features one frosted glazed panel with three rectangular inset panels below in an unfinished Oak.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    This traditional door design includes clear glazed panels and subtle detailing in a 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...
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    LPD Lincoln Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    The Lincoln Glazed door design features clear glazed panels with subtle unfinished Oak detailing.
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    LPD Mexicano 1L White Primed Glazed Door 1981 x 686 x 35mm (78 x 27)

    A large rectangular clear glazed panel is centred within grooved panels for this Mexicano door design, crafted from primed solid core in white.
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    LPD Mexicano Fully Finished Oak Half Clear Etched Glazed Door 1981 x 686 x 35mm (78 x 27)

    A unique take on the classic Mexicano design. A modern glazed panel featuring clear glazing with frosted lines replicating the solid panel below which follows the traditional Mexicano. This door is perfect for allowing natural light to flow through your...
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    LPD Mexicano Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    With its panel design and 6 clear bevelled glazed panels, the Mexicano 6L Slimline is a stylish addition to your home.
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    LPD Mexicano Oak Half Clear Etched Glazed Door 1981 x 686 x 35mm (78 x 27)

    A unique take on the classic Mexicano design. A modern glazed panel featuring clear glazing with frosted lines replicating the solid panel below which follows the traditional Mexicano. This door is perfect for allowing natural light to flow through your...
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    LPD Mexicano Pattern 10 Fully Finished Clear Etched Glazed Door Oak 1981 x 686 x 35mm (78 x 27)

    Expanding on the ever popular Mexicano family, this door design portrays a large clear glazed panel with frosted lines, replicating the Mexicano classic. Pre-finished, this door is ready to hang and is great for rooms wanting to allow natural light flow...
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    LPD Pattern 10 1L Oak Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    The Pattern 10 door design is crafted from unfinished Oak, ready for you to personalise and with a large centre panel in clear glass. A perfect addition for a room where you want to maximise the natural light, the simple design of this door will work...
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    LPD Pattern 10 1L White Primed Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    The Pattern 10 door design is finished in primed white ready for a final top coat. Featuring a large centre panel in clear glass, this internal door is the perfect addition for a room where you want to maximise the natural light, the simple design of...
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    LPD Pattern 10 1L White Primed Frosted Glazed Door 1981 x 686 x 35mm (78 x 27)

    The Pattern 10 door design is finished in primed white ready for a final top coat. Featuring a large centre panel with frosted glazing, this internal door is the perfect addition for a room where you want to maximise the natural light whislt also...
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    LPD Reims White Primed Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    A unique diamond design created from decorative beading is placed on clear glazing, forming a traditional, sophisticated door. These doors do require a final finishing which makes them the perfect pick for you if you are wanting to experiment with funky...
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    LPD Richmond 2L Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    Two inset panels sit below two clear bevelled panels in this traditional pre-finished Oak door design.
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    LPD Richmond Fully Finished Oak Glazed Door 1981 x 686 x 35mm (78 x 27)

    The traditional Richmond Glazed door features two clear bevelled glazed panels above two inset panels in unfinished Oak.

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.

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