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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 Melbourne White Primed Internal Door 1981 x 762 x 35mm (78 x 30)

    LPD Melbourne White Primed Internal Door 1981 x 762 x 35mm supplied primed and ready to paint, ideal for modern homes and renovation projects.
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    LPD Melbourne White Primed Internal Door 1981 x 838 x 35mm (78 x 30)

    LPD Melbourne White Primed Internal Door 1981 x 838 x 35mm featuring a smooth white primed finish ready for decorating. Available online from Howarth Timber.
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    LPD Melrose Fully Finished Oak Internal Glazed Door 1981 x 686 x 35mm (78 x 27)

    LPD Melrose fully finished oak glazed internal door 1981 x 686 x 35mm combining elegant glazing with a premium finished oak veneer.
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    LPD Melrose Fully Finished Oak Internal Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Melrose fully finished oak glazed internal door 1981 x 762 x 35mm adding warmth and natural light to internal living spaces.
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    LPD Melrose Fully Finished Oak Internal Glazed Door 1981 x 838 x 35mm (78 x 30)

    LPD Melrose fully finished oak glazed internal door 1981 x 838 x 35mm ready to install with a quality factory finished surface.
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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 1L White Primed Glazed Door 1981 x 762 x 35mm (78 x 30)

    The LPD Mexicano 1 Light White Primed Door combines contemporary vertical grooves with clear glazing and a smooth primed finish ready for painting.
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    LPD Mexicano 1L White Primed Glazed Door 1981 x 838 x 35mm (33 Inch)

    Brighten modern interiors with the LPD Mexicano 1 Light White Primed Glazed Door, supplied primed and ready to paint for a bespoke finish.
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    LPD Mexicano 1L White Primed Glazed Door 2040 x 726 x 40mm

    Designed for metric openings, the LPD Mexicano 1 Light Door features clear glazing, modern styling and a factory primed surface ready for painting.
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    LPD Mexicano 1L White Primed Glazed Door 2040 x 826 x 40mm

    The LPD Mexicano 1 Light White Primed Glazed Door combines contemporary design with natural light and a smooth finish ready for decorating.
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    LPD Mexicano Fully Finished Black Internal Door 1981 x 610 x 35mm (78 x 24)

    LPD Mexicano fully finished black internal door 1981 x 610 x 35mm featuring the iconic vertical groove design with a contemporary black finish.
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    LPD Mexicano Fully Finished Black Internal Door 1981 x 686 x 35mm (78 x 27)

    LPD Mexicano fully finished black internal door 1981 x 686 x 35mm ready to install with a durable factory finished surface.
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    LPD Mexicano Fully Finished Black Internal Door 1981 x 762 x 35mm (78 x 30)

    LPD Mexicano fully finished black internal door 1981 x 762 x 35mm ideal for modern interiors with bold contemporary styling.
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    LPD Mexicano Fully Finished Black Internal Door 1981 x 838 x 35mm (78 x 30)

    LPD Mexicano fully finished black internal door 1981 x 838 x 35mm combining premium quality with striking modern design.
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    LPD Mexicano Fully Finished Black Internal Fire Door 1981 x 686 x 44mm (78 x 27)

    LPD Mexicano fully finished black FD30 fire door 1981 x 686 x 44mm providing certified fire protection with contemporary styling.
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    LPD Mexicano Fully Finished Black Internal Fire Door 1981 x 762 x 44mm (78 x 30)

    LPD Mexicano fully finished black FD30 fire door 1981 x 762 x 44mm delivering dependable fire performance and a premium finish.
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    LPD Mexicano Fully Finished Black Internal Fire Door 1981 x 838 x 44mm (78 x 30)

    LPD Mexicano fully finished black FD30 fire door 1981 x 838 x 44mm offering certified protection and stylish modern design.
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    LPD Mexicano Fully Finished Black Internal Offset Glazed Door 1981 x 686 x 35mm (78 x 27)

    LPD Mexicano fully finished black offset glazed internal door 1981 x 686 x 35mm combining bold styling with contemporary glazing.
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    LPD Mexicano Fully Finished Black Internal Offset Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Mexicano fully finished black offset glazed internal door 1981 x 762 x 35mm ideal for creating bright modern interiors.
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    LPD Mexicano Fully Finished Black Internal Offset Glazed Door 1981 x 838 x 35mm (78 x 30)

    LPD Mexicano fully finished black offset glazed internal door 1981 x 838 x 35mm supplied ready to install with a premium finish.
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    LPD Mexicano Fully Finished Oak Bi-Fold Door 1981 x 686 x 35mm (27 Inch)

    Perfect for conservatories, studies and dining rooms, this door features a convenient bi-folding design that is pre-finished and ready to hang. Please note 78 height includes track. Supplied with track and hinges ". These doors come pre-finished or Fully...
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    LPD Mexicano Fully Finished Oak Door 1981 x 458 x 35mm

    Ideal for use in bedrooms or lounges, the Mexicano features a classic panel design in pre-finished oak.
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    LPD Mexicano Fully Finished Oak Door 1981 x 533 x 35mm (78 x 21)

    The LPD Mexicano Fully Finished Oak Door features the signature vertical groove design with a durable factory applied finish.
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    LPD Mexicano Fully Finished Oak Door 1981 x 610 x 35mm (78 x 24)

    The LPD Mexicano Fully Finished Oak Door offers distinctive vertical grooves with a quality factory finished oak veneer.

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