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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.

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  • Deanta Valencia Fully Finished Walnut Door Deanta Valencia Fully Finished Walnut Door

    Deanta Valencia Fully Finished Walnut Door

    This contemporary-style door refuses to blend into the background. Horizontal panels of American black walnut veneer, showing off a bold woodgrain pattern, are accentuated by crisp aluminium inlays. The glazed door features a series of vertically...
  • Deanta Valencia Fully Finished Walnut Fire Door Deanta Valencia Fully Finished Walnut Fire Door

    Deanta Valencia Fully Finished Walnut Fire Door

    This contemporary-style door refuses to blend into the background. Horizontal panels of American black walnut veneer, showing off a bold woodgrain pattern, are accentuated by crisp aluminium inlays. The glazed door features a series of vertically...
  • Deanta Walden Oak Door Deanta Walden Oak Door

    Deanta Walden Oak Door

    The Walden Glazed Oak door features a large, central pane of clear or frosted glass, with a simple, unfinished oak surround. The central section the Walden Solid Oak door comprises vertical panels of oak veneer. Built for strength and longevity, this...
  • Deanta Walden Oak Fire Door Deanta Walden Oak Fire Door

    Deanta Walden Oak Fire Door

    The Walden Glazed Oak door features a large, central pane of clear or frosted glass, with a simple, unfinished oak surround. The central section the Walden Solid Oak door comprises vertical panels of oak veneer. Built for strength and longevity, this...
  • Deanta Walden Oak Glazed Door Deanta Walden Oak Glazed Door

    Deanta Walden Oak Glazed Door

    The Walden Glazed Oak door features a large, central pane of clear or frosted glass, with a simple, unfinished oak surround. The central section the Walden Solid Oak door comprises vertical panels of oak veneer. Built for strength and longevity, this...
  • Deanta Walden Oak Obscure Glazed Door Deanta Walden Oak Obscure Glazed Door

    Deanta Walden Oak Obscure Glazed Door

    The Walden Glazed Oak door features a large, central pane of clear or frosted glass, with a simple, unfinished oak surround. The central section the Walden Solid Oak door comprises vertical panels of oak veneer. Built for strength and longevity, this...
  • Deanta Windsor Fully Finished Oak Door Deanta Windsor Fully Finished Oak Door

    Deanta Windsor Fully Finished Oak Door

    The Deanta Windsor is the most stunning design, with flawlessly bevelled edges. The largest of three exquisite bevelled-edged panels occupies the upper half of the door and gives an enthralling take on classic style with elaborate embellishments. Its...
  • Deanta Windsor Fully Finished Oak Fire Door Deanta Windsor Fully Finished Oak Fire Door

    Deanta Windsor Fully Finished Oak Fire Door

    The Deanta Windsor is a real classic, with a design that is both attractive and functional. The largest of our three exquisite bevelled-edged panels, which occupy the upper half of the door, gives a stunning take on classic style with complex detailing...
  • Deanta Windsor Fully Finished Oak Glazed Door Deanta Windsor Fully Finished Oak Glazed Door

    Deanta Windsor Fully Finished Oak Glazed Door

    This oak door has the look of an authentic antique with a unique bevelled-edged design that will add charm to your home. It has an exquisite stile and rail structure that makes it both useful and appealing. The elegant classic design is ideal for many...
  • Deanta Windsor White Primed Glazed Door

    Deanta Windsor White Primed Glazed Door

    The Deanta Windsor White Primed Glazed Door will add a touch of luxury and elegance to any area. The biggest of three gracefully bevelled-edged panels occupies the upper half of the entrance, lending an aura of elegance that is certain to make a good...
  • Exitex Intumescent Strip Fire & Smoke White 2100 x 4mm Exitex Intumescent Strip Fire & Smoke White 2100 x 4mm

    Exitex Intumescent Strip Fire & Smoke White 2100 x 4mm

    £1.48 - £2.60 each (Ex VAT)
    £1.78 - £3.12 each (Inc VAT)
    Intumescent provides fire and smoke seal for fire rated timber, composite and metal door sets. This product has been specially developed to react at lower temperatures protecting the doorset at the most critical stage. Supplied in either 10mm, 15mm, or...
    £1.48 - £2.60 each (Ex VAT)
    £1.78 - £3.12 each (Inc VAT)
  • Exitex Intumescent Strip White Fire Only 2100 x 4mm

    Exitex Intumescent Strip White Fire Only 2100 x 4mm

    £1.16 - £2.30 each (Ex VAT)
    £1.39 - £2.76 each (Inc VAT)
    Intumescent provides fire seal for fire rated timber, composite and metal door sets. This product has been specially developed to react at lower temperatures protecting the doorset at the most critical stage. Supplied in either 10mm, 15mm, or 25mm.
    £1.16 - £2.30 each (Ex VAT)
    £1.39 - £2.76 each (Inc VAT)
  • JB Kind Adelphi Internal White Primed Bi-Fold Door 1981 x 762 x 35mm (30") JB Kind Adelphi Internal White Primed Bi-Fold Door 1981 x 762 x 35mm (30")

    JB Kind Adelphi Internal White Primed Bi-Fold Door 1981 x 762 x 35mm (30")

    Stylish white primed bi-fold internal door, flush with horizontal grooves. 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: mm...
  • JB Kind Adelphi Internal White Primed Door JB Kind Adelphi Internal White Primed Door

    JB Kind Adelphi Internal White Primed Door

    Stylish white primed internal door, flush with horizontal grooves. 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: 5mm. Maximum...
  • JB Kind Adelphi Internal White Primed Fire Door JB Kind Adelphi Internal White Primed Fire Door

    JB Kind Adelphi Internal White Primed Fire Door

    Stylish white primed internal door, flush with horizontal grooves. 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: 2mm. Maximum...
  • JB Kind Alabama Cinza Fully Finished Laminate Door JB Kind Alabama Cinza Fully Finished Laminate Door

    JB Kind Alabama Cinza Fully Finished Laminate Door

    Contemporary dark grey laminate door with recessed central panel, supplied fully finished
  • JB Kind Alabama Cinza Fully Finished Laminate Fire Door JB Kind Alabama Cinza Fully Finished Laminate Fire Door

    JB Kind Alabama Cinza Fully Finished Laminate Fire Door

    Contemporary dark grey laminate door with recessed central panel, supplied fully finished
  • JB Kind Alabama Cinza Fully Finished Laminate Glazed Door JB Kind Alabama Cinza Fully Finished Laminate Glazed Door

    JB Kind Alabama Cinza Fully Finished Laminate Glazed Door

    Contemporary dark grey laminate glazed door with recessed central panel, supplied fully finished
  • JB Kind Alabama Fumo Fully Finished Laminate Door JB Kind Alabama Fumo Fully Finished Laminate Door

    JB Kind Alabama Fumo Fully Finished Laminate Door

    Contemporary smoky grey laminate door with recessed central panel, supplied fully finished
  • JB Kind Alabama Fumo Fully Finished Laminate Fire Door JB Kind Alabama Fumo Fully Finished Laminate Fire Door

    JB Kind Alabama Fumo Fully Finished Laminate Fire Door

    Contemporary smoky grey laminate door with recessed central panel, supplied fully finished
  • JB Kind Alabama Fumo Fully Finished Laminate Glazed Door JB Kind Alabama Fumo Fully Finished Laminate Glazed Door

    JB Kind Alabama Fumo Fully Finished Laminate Glazed Door

    Contemporary smoky grey laminate glazed door with recessed central panel, supplied fully finished
  • JB Kind Andorra Internal White Primed Glazed Door JB Kind Andorra Internal White Primed Glazed Door

    JB Kind Andorra Internal White Primed Glazed Door

    Classic white primed moulded panel interior door with grained effect and etched glass. 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...
  • JB Kind Antigua White Primed Door JB Kind Antigua White Primed Door

    JB Kind Antigua White Primed Door

    White shaker style internal door with full recessed panel, supplied primed

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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