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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 Ladder Fully Finished Laminate White Internal Door 1981 x 838 x 35mm (78 x 30)

    LPD Ladder Fully Finished White Laminate Internal Door 1981 x 838 x 35mm combining clean contemporary styling with a durable laminate surface.
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    LPD Ladder Fully Finished Laminate White Internal Fire Door 1981 x 686 x 44mm (78 x 27)

    LPD Ladder Fully Finished White Laminate FD30 Internal Fire Door 1981 x 686 x 44mm providing certified 30 minute fire protection with modern styling.
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    LPD Ladder Fully Finished Laminate White Internal Fire Door 1981 x 762 x 44mm (78 x 30)

    LPD Ladder Fully Finished White Laminate FD30 Internal Fire Door 1981 x 762 x 44mm with a premium laminate finish and certified fire performance.
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    LPD Ladder Fully Finished Laminate White Internal Fire Door 1981 x 838 x 44mm (78 x 30)

    LPD Ladder white laminate FD30 fire door combines contemporary styling with certified 30 minute fire protection. Buy online today.
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    LPD Ladder Fully Finished Laminate White Internal Glazed Door 1981 x 686 x 35mm (78 x 27)

    LPD Ladder white laminate glazed internal door with clear glazing and a durable low maintenance finish. Buy online at Howarth Timber.
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    LPD Ladder Fully Finished Laminate White Internal Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Ladder white laminate glazed internal door features contemporary styling, clear glazing and a durable laminate finish. Buy online.
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    LPD Ladder Fully Finished Laminate White Internal Glazed Door 1981 x 838 x 35mm (78 x 30)

    LPD Ladder Fully Finished White Laminate Internal Glazed Door 1981 x 838 x 35mm designed to maximise natural light with a durable white laminate finish.
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    LPD Ladder Moulded White Primed Door 1981 x 610 x 35mm (24 Inch)

    A ladder design formed using four, equal sized panels, perfect for enhancing your interiors in a cost effective way, without affecting style or quality. These doors do require a final finishing which makes them the perfect pick for you if you are wanting...
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    LPD Ladder Moulded White Primed Door 1981 x 686 x 35mm (78 x 27)

    LPD Ladder moulded white primed internal door 1981 x 686 x 35mm with contemporary ladder style detailing.
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    LPD Ladder Moulded White Primed Door 1981 x 762 x 35mm (78 x 30)

    LPD Ladder moulded white primed internal door 1981 x 762 x 35mm supplied ready for painting.
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    LPD Ladder Moulded White Primed Door 1981 x 838 x 35mm (33 Inch)

    LPD Ladder moulded white primed internal door 1981 x 838 x 35mm with a smooth finish for modern interiors.
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    LPD Ladder White Moulded Primed FD30 Fire Door 1981 x 686 x 44mm (78 x 27)

    LPD Ladder white moulded primed FD30 fire door 1981 x 686 x 44mm providing stylish certified fire protection.
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    LPD Ladder White Moulded Primed FD30 Fire Door 1981 x 762 x 44mm (78 x 30)

    LPD Ladder white moulded primed FD30 fire door 1981 x 762 x 44mm ready for painting and installation.
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    LPD Ladder White Moulded Primed FD30 Fire Door 1981 x 838 x 44mm (33 Inch)

    LPD Ladder white moulded primed FD30 fire door 1981 x 838 x 44mm with contemporary ladder styling.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 1981 x 610 x 35mm (24 Inch)

    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 3L Fully Finished Oak Clear Glazed Door 1981 x 686 x 35mm (78 x 27)

    LPD Lincoln 3 light fully finished oak clear glazed door 1981 x 686 x 35mm bringing natural light and contemporary oak styling.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Lincoln 3 light fully finished oak clear glazed door 1981 x 762 x 35mm supplied ready to install with a durable factory finish.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 1981 x 838 x 35mm (78 x 33)

    LPD Lincoln 3 light fully finished oak clear glazed door 1981 x 838 x 35mm ideal for bright contemporary interiors.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 2040 x 626 x 40mm

    LPD Lincoln 3 light fully finished oak clear glazed door 2040 x 626 x 40mm designed for metric openings with premium styling.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 2040 x 726 x 40mm

    LPD Lincoln 3 light fully finished oak clear glazed door 2040 x 726 x 40mm with clear glazing and a factory finished surface.
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    LPD Lincoln 3L Fully Finished Oak Clear Glazed Door 2040 x 826 x 40mm

    LPD Lincoln 3 light fully finished oak clear glazed door 2040 x 826 x 40mm combining natural oak with maximum light.
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    LPD Lincoln 3L Oak Obscure Glazed Door 1981 x 686 x 35mm (27 Inch)

    The Lincoln Glazed door design features Frosted glazed panels with subtle unfinished Oak detailing. These doors are an ideal choice to add some warmth to your home whilst keeping your interior looking cool and stylish. Tthese doors are unfinished so are...
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    LPD Lincoln 3L Oak Obscure Glazed Door 1981 x 762 x 35mm (78 x 30)

    LPD Lincoln 3 light oak obscure glazed door 1981 x 762 x 35mm offering privacy while allowing natural light through.
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    LPD Lincoln 3L Oak Obscure Glazed Door 1981 x 838 x 35mm (33 Inch)

    LPD Lincoln 3 light oak obscure glazed door 1981 x 838 x 35mm with stylish obscure glazing for added privacy.

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