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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 Thames Internal White Primed Glazed Door 1981 x 838 x 35mm (78 x 33)

    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 Thames Internal White Primed Glazed Door 2040 x 626 x 40mm (80 x 24)

    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 Thames Internal White Primed Glazed Door 2040 x 726 x 40mm (80 x 28)

    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 610 x 35mm (78 x 24)

    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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    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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    JB Kind Tigris Internal Fully Finished Light Grey Glazed Laminate Door 1981 x 762 x 35mm (78 x 30)

    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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    JB Kind Tigris Internal Fully Finished Light Grey Glazed Laminate Door 1981 x 838 x 35mm (78 x 33)

    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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    JB Kind Trinidad Internal White Primed Glazed Door 1981 x 838 x 35mm (78 x 33)

    Classic style white primed internal door with clear glass centre panel and decorarive muntings. This door can be trimmed to the following specifications, for anything else please contact our customer helpline for bespoke door options: Maximum Trimming...
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    LPD Amsterdam 3L White Primed Plus Glazed Door 1981 x 762 x 35mm (78 x 30)

    Three, clear glazed panels, surrounded by decorative beading, allow this door to appear sophisticated and stylish.
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    LPD Antwerp Primed Black Glazed Door 1981 x 762 x 35mm (78 x 30)

    The Antwerp internal glazed door is a unique design. Coming in the powerful and fashionable primed black colour, this door will make your home feel supreme. Featuring bolection moulding, this door will also have the added benefit of allowing natural...
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    LPD Arnhem 1L White Primed Plus Glazed Door 1981 x 762 x 35mm (78 x 30)

    One large clear bevelled glazed panel sits proudly above one smaller solid panel, forming a Georgian inspired design.
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    LPD Arnhem 1L White Primed Plus Glazed Door 1981 x 838 x 35mm (78 x 33)

    One large clear bevelled glazed panel sits proudly above one smaller solid panel, forming a Georgian inspired design.
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    LPD Arnhem Fully Finished Oak Glazed Door 1981 x 762 x 35mm (78 x 30)

    One large glazed panel and one smaller solid panel, enhanced by decorative beading, create this premium design which is perfect for creating a stylish statement in your home.
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    LPD Belize 1L Oak Glazed Door 1981 x 610 x 35mm (78 x 24)

    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 Belize 1L Oak Glazed Door 1981 x 762 x 35mm (78 x 30)

    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 Belize 1L Oak Glazed Door 2040 x 726 x 40mm (80 x 28)

    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 Belize 1L Oak Glazed Door 2040 x 826 x 40mm (80 x 32)

    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 Belize Fully Finished Oak Glazed Door 1981 x 610 x 35mm (78 x 24)

    The internal Belize Pre-finished oak glazed door features the popular five vertical panel design, showcasing geometry. This gives a modern twist on a traditional style with the added benefit of a clear glazed panel with frosted lines, which replaces half...
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    LPD Belize Fully Finished Oak Glazed Door 1981 x 838 x 35mm (78 x 33)

    The internal Belize Pre-finished oak glazed door features the popular five vertical panel design, showcasing geometry. This gives a modern twist on a traditional style with the added benefit of a clear glazed panel with frosted lines, which replaces half...
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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 Belize Oak Glazed Door 1981 x 762 x 35mm (78 x 30)

    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 Canterbury 6L White Primed Glazed Door 1981 x 762 x 35mm (78 x 30)

    This classic Canterbury door design features six square clear glazed panels above two raised shaped panels in a white finish.
  • LPD Carini 5L Oak Glazed Door 2040 x 826 x 40mm LPD Carini 5L Oak Glazed Door 2040 x 826 x 40mm

    LPD Carini 5L Oak Glazed Door 2040 x 826 x 40mm

    The Carini 5L features five clear glazed square panels in wood frames, complete with contrasting wood grain side panels. This design boasts seven, sleek, centre panels complete with contrasting styles to give the door stand-out appearance. Unfinished...
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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...

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