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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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  • Cheshire Prefinished Oak Door 1981 x 762 x 35mm Cheshire Prefinished Oak Door 1981 x 762 x 35mm

    Cheshire Prefinished Oak Door 1981 x 762 x 35mm

    Transform your entryway with the Cheshire Oak Door, a perfect combination of style and durability that enhances your home’s character. Crafted from premium crown cut American unfinished oak, this door is designed to make a statement in any home,...
  • LPD Regency Oak Door 1981 x 762 x 35mm (30 Inch)

    LPD Regency Oak Door 1981 x 762 x 35mm (30 Inch)

    Characterful unfinished white Oak wood grain is used for this Regency door design, complete with four raised panels. Please note that doors 21 inch or smaller are supplied with two panels.
  • LPD Belize Fully Finished Oak Door 1981 x 762 x 35mm (30 Inch) LPD Belize Fully Finished Oak Door 1981 x 762 x 35mm (30 Inch)

    LPD Belize Fully Finished Oak Door 1981 x 762 x 35mm (30 Inch)

    The Pre-finished Belize internal door is great for home renovations. The popular five vertical panel design showcasing geometry has a modern twist on a traditional style and will look perfect in any contemporary home. Pre-finished, this internal door is...
  • JB Kind Thames Internal White Primed Glazed Door 2040 x 826 x 40mm JB Kind Thames Internal White Primed Glazed Door 2040 x 826 x 40mm

    JB Kind Thames Internal White Primed Glazed Door 2040 x 826 x 40mm

    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...
  • LPD 4 Panel Clear Pine Door 1981 x 762 x 35mm (30 Inch) LPD 4 Panel Clear Pine Door 1981 x 762 x 35mm (30 Inch)

    LPD 4 Panel Clear Pine Door 1981 x 762 x 35mm (30 Inch)

    This narrow door design features two raised rectangular shaped panels in a characterful Clear Pine wood grain finish.
  • JB Kind Thames Internal White Primed Door 1981 x 686 x 35mm JB Kind Thames Internal White Primed Door 1981 x 686 x 35mm

    JB Kind Thames Internal White Primed Door 1981 x 686 x 35mm

    Cottage style white interior door with grooved centre panel, supplied ready primed. Can be used as part of a pocket door system.Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors...
  • Deanta Ely Prefinished Oak Door 1981 x 686 x 35mm (27 Inch) Deanta Ely Prefinished Oak Door 1981 x 686 x 35mm (27 Inch)

    Deanta Ely Prefinished Oak Door 1981 x 686 x 35mm (27 Inch)

    The Deanta Ely Prefinished Oak Door would look great in any home. This door, with its elegant wood grain design and strong wood-grain contrast, will provide warmth and natural beauty to any area in your house. This door is handcrafted from finest...
  • LPD 4P White Primed Door 1981 x 686 x 35mm (27 Inch)

    LPD 4P White Primed Door 1981 x 686 x 35mm (27 Inch)

    This textured door design features four raised rectangular shaped panels crafted from an appealing white composite.
  • JB Kind Thames Internal White Primed Glazed Door 1981 x 762 x 35mm JB Kind Thames Internal White Primed Glazed Door 1981 x 762 x 35mm

    JB Kind Thames Internal White Primed Glazed Door 1981 x 762 x 35mm

    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...
  • Deanta Ely Fully Finished Oak 5L Glazed Door 1981 x 762 x 35mm (30 Inch) Deanta Ely Fully Finished Oak 5L Glazed Door 1981 x 762 x 35mm (30 Inch)

    Deanta Ely Fully Finished Oak 5L Glazed Door 1981 x 762 x 35mm (30 Inch)

    The Ely Solid Oak door is the most popular style in the UK and complements almost any setting. The full-glazed and half-glazed options of this classic door are ideal for a modern house or flat, while the unusual horizontal symmetry of the 5L glazed door...
  • Cheshire Prefinished Oak Door 1981 x 686 x 35mm Cheshire Prefinished Oak Door 1981 x 686 x 35mm

    Cheshire Prefinished Oak Door 1981 x 686 x 35mm

    Transform your entryway with the Cheshire Oak Door, a perfect combination of style and durability that enhances your home’s character. Crafted from premium crown cut American unfinished oak, this door is designed to make a statement in any home,...
  • JB Kind Rustic 4 Panel Internal Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30") JB Kind Rustic 4 Panel Internal Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30")

    JB Kind Rustic 4 Panel Internal Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30")

    Rustic oak, naturally knotty in appearance glazed interior door. Supplied with varnish finish.. This door can be trimmed to the following specifications, for anything else please contact our customer helpline for bespoke door options: Maximum Trimming...
  • LPD Belize Internal Oak Door 2032 x 813 x 35mm (32 Inch) LPD Belize Internal Oak Door 2032 x 813 x 35mm (32 Inch)

    LPD Belize Internal Oak Door 2032 x 813 x 35mm (32 Inch)

    The Belize Oak internal door is a popular option from our LPD Doors range and its easy to see why. Coming from the same family as the popular Oak Mexicano door, this simple yet stylish door works beautifully throughout any home or office.
  • Deanta Ravello Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30 Inch) Deanta Ravello Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30 Inch)

    Deanta Ravello Fully Finished Oak Glazed Door 1981 x 762 x 35mm (30 Inch)

    Our Ravello doors combine the traditional beauty of American White Oak with a modern touch. The lovely curve, heavyweight feel, and wood veneer finish will offer a touch of refinement and elegance to any space in your house. This door is ready to hang...
  • JB Kind Thames Internal White Primed Door 1981 x 762 x 35mm JB Kind Thames Internal White Primed Door 1981 x 762 x 35mm

    JB Kind Thames Internal White Primed Door 1981 x 762 x 35mm

    Cottage style white interior door with grooved centre panel, supplied ready primed. Can be used as part of a pocket door system.Howarth supply a wide range of internal doors, including oak doors, white primed doors, fire doors, and fully finished doors...
  • LPD 4 Panel Clear Pine Door 2032 x 813 x 35mm (32 Inch) LPD 4 Panel Clear Pine Door 2032 x 813 x 35mm (32 Inch)

    LPD 4 Panel Clear Pine Door 2032 x 813 x 35mm (32 Inch)

    This narrow door design features two raised rectangular shaped panels in a characterful Clear Pine wood grain finish.
  • LPD Belize Fully Finished Oak Fire Door 1981 x 762 x 44mm (30 Inch) LPD Belize Fully Finished Oak Fire Door 1981 x 762 x 44mm (30 Inch)

    LPD Belize Fully Finished Oak Fire Door 1981 x 762 x 44mm (30 Inch)

    The Pre-finished Belize internal door is great for home renovations. The popular five vertical panel design showcasing geometry has a modern twist on a traditional style and will look perfect in any contemporary home. Pre-finished, this internal door is...
  • Intumescent Fire and Smoke Seal White 2.1m Loose Lengths 15 x 4mm Intumescent Fire and Smoke Seal White 2.1m Loose Lengths 15 x 4mm

    Intumescent Fire and Smoke Seal White 2.1m Loose Lengths 15 x 4mm

    The 15mm x 4mm White Intumescent Fire and Smoke Seal is fitted to a fire door and is designed to swell when it meets heat, filling any gaps that may exist between the door and the door frame, preventing smoke from passing through. Intumescent strips are...
  • Cheshire Prefinished Oak Door 1981 x 838 x 35mm Cheshire Prefinished Oak Door 1981 x 838 x 35mm

    Cheshire Prefinished Oak Door 1981 x 838 x 35mm

    Transform your entryway with the Cheshire Oak Door, a perfect combination of style and durability that enhances your home’s character. Crafted from premium crown cut American unfinished oak, this door is designed to make a statement in any home,...
  • JB Kind Hardboard Internal White Primed Flush Door 2032 x 813 x 35mm

    JB Kind Hardboard Internal White Primed Flush Door 2032 x 813 x 35mm

    White primed interior hardboard flush. 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 Side: 3mm. Maximum Trimming From Bottom: 10mm...
  • JB Kind Montserrat White Primed Bi-fold Door 1981 x 762 x 35mm JB Kind Montserrat White Primed Bi-fold Door 1981 x 762 x 35mm

    JB Kind Montserrat White Primed Bi-fold Door 1981 x 762 x 35mm

    White shaker style bi-fold internal door with recessed panels, supplied ready primed

  • LPD Shaker 4P Oak Bi-Fold Door 1981 x 762 x 35mm (30 Inch)

    This tasteful door includes four pronounced unfinished Oak panels and a convenient bi-folding design. Please note 78 height includes track. Supplied with track and hinges ". These doors are an ideal choice to add some warmth to your home whilst keeping...

  • JB Kind Cherwell Internal Fully Finished Oak Door 1981 x 686 x 35mm (27")

    Distinctive oak cottage style door with full length grooves, supplied complete with varnish finish. This door can be trimmed to the following specifications, for anything else please contact our customer helpline for bespoke door options: Maximum...

  • JB Kind Cosmo Fully Finished Grey Internal Door 1981 x 762 x 35mm (30"')

    Contemporary industrial style grey interior door with recessed 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 view...

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.

How to measure an internal door

A blog outlining the ins and outs of how to measure an internal door accurately and precisely.

How to fit door architrave

A how-to guide detailing all the information and tools you need to be able to fit door architrave!

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