838mm or 33 Inch Internal Oak Doors

At 838mm, or 33 inches, this is the widest of the standard internal door widths, made for larger rooms, grander openings and the most generous, accessible clear openings. The range runs across panelled, glazed, cottage and period designs in solid oak, all in the standard 1981mm (78 inch) height, prefinished or unfinished.

Product Mexicano glazed four lite prefinished blonde oak door
Product Mexicano glazed four lite prefinished blonde oak door

Mexicano Glazed 4L Prefinished Blonde Oak Door

£268.95 (inc VAT) £283.95

Lifestyle Belize offset clear glazed oak internal door installed in a room setting
Product Belize offset clear glazed oak internal door

Belize Offset Clear Glazed Oak Internal Door

(1)

£176.95 (inc VAT) £186.95

Lifestyle Valencia prefinished oak internal door shown in an interior
Product Valencia prefinished oak internal door

Valencia Prefinished Oak Internal Door

£259.95 (inc VAT) £274.95

Lifestyle Valencia prefinished oak FD30 fire door installed in a room
Product Valencia prefinished oak FD30 fire door

Valencia Prefinished Oak FD30 Fire Door

£314.95 (inc VAT) £329.95

Lifestyle Torino glazed prefinished oak door installed in a room
Product Torino glazed prefinished oak non-fire door version

Torino Glazed Prefinished Oak Door

£300.95 (inc VAT) £315.95

Lifestyle Kensington prefinished glazed oak door in room
Product Kensington prefinished glazed oak internal door

Kensington Internal Prefinished Glazed Oak Door

£344.95 (inc VAT) £364.95

Lifestyle Galway vertical panel glazed oak door installed
Product Galway vertical panel glazed oak door

Galway Vertical Panel Glazed Oak Door

£264.95 (inc VAT) £279.95

Lifestyle Ely prefinished oak 1 side light glazed internal door installed in a room setting
Product Ely prefinished oak 1 side light glazed internal door

Ely Prefinished Oak 1SL Glazed FD30 Fire Door

£702.95 (inc VAT) £737.95

Lifestyle Coventry prefinished oak glazed door in room
Product Coventry prefinished oak glazed FD30 fire door

Coventry Prefinished Oak Glazed FD30 Fire Door

£762.95 (inc VAT) £802.95

Cambridge 1930s style oak door lifestyle setting
Product Cambridge 1930s 1 light glazed veneer door

Cambridge 1930's 1 Light Glazed Veneer Door

£209.95 (inc VAT) £219.95

Lifestyle Amalfi prefinished oak door in home interior
Product Amalfi prefinished oak fire door

Amalfi Prefinished Oak Fire Door

£312.95 (inc VAT) £327.95

Girona prefinished oak clear glazed internal door with curved grooves and a large clear glass panel

Girona Prefinished Oak Clear Glazed Internal Door

£210.95 (inc VAT) £220.95

Girona unfinished oak clear glazed internal door with curved grooves and a large clear glass panel

Girona Unfinished Oak Clear Glazed Internal Door

£173.95 (inc VAT) £183.95

Belize Prefinished Oak 5 Panel FD60 Internal Fire Door

Belize Prefinished Oak 5 Panel FD60 Internal Fire Door

£554.95 (inc VAT) £579.95

Lille Prefinished Oak FD30 Internal Fire Door

Lille Prefinished Oak FD30 Internal Fire Door

£238.95 (inc VAT) £248.95

Kilburn Unfinished Oak 3 Panel FD30 Internal Fire Door

Kilburn Unfinished Oak 3 Panel FD30 Internal Fire Door

£342.50 (inc VAT) £357.50

Girona Prefinished Oak FD30 Internal Fire Door

Girona Prefinished Oak FD30 Internal Fire Door

£207.50 (inc VAT) £217.50

Girona Unfinished Oak FD30 Internal Fire Door

Girona Unfinished Oak FD30 Internal Fire Door

£179.50 (inc VAT) £184.50

Edmonton Prefinished Oak FD30 Internal Fire Door

Edmonton Prefinished Oak FD30 Internal Fire Door

£350.95 (inc VAT) £365.95

Cotswold Prefinished Oak 6 Panel FD30 Internal Fire Door

Cotswold Prefinished Oak 6 Panel FD30 Internal Fire Door

£158.50 (inc VAT) £163.50

Arnhem Prefinished Oak 2 Panel FD30 Internal Fire Door

Arnhem Prefinished Oak 2 Panel FD30 Internal Fire Door

£421.95 (inc VAT) £441.95

Product prefinished oak flush fire door on white background

Oak Prefinished Internal Flush Fire Door

£134.95 (inc VAT) £139.95

Lifestyle Victorian four panel raised moulding oak fire door installed in a room
Product Victorian four panel raised moulding oak fire door

Victorian 4 Panel Raised Moulding Oak Fire Door

£277.95 (inc VAT) £287.95

Lifestyle prefinished oak Regency FD30 door installed in room
Product prefinished oak Regency four panel FD30 door

Prefinished Oak Regency 4P Non Raised FD30 Door

£225.95 (inc VAT) £235.95

Lifestyle Modern living room with wooden door, sofa, and coffee table.
Product Amsterdam 3 panel prefinished oak bevelled glazed door

Amsterdam 3 Panel Prefinished Oak Internal Glazed Door

£395.95 (inc VAT) £415.95

Lifestyle Amsterdam 3 panel prefinished oak fire door in room
Product Amsterdam 3 panel prefinished oak internal door

Amsterdam 3 Panel Prefinished Oak Internal Fire Door

£489.95 (inc VAT) £514.95

Lifestyle Amsterdam 3 panel prefinished oak internal door in room
Product Amsterdam 3 panel prefinished oak internal door

Amsterdam 3 Panel Prefinished Oak Internal Door

£329.95 (inc VAT) £344.95

Oak Doors for the Widest 33 Inch Openings

At 838mm, or 33 inches, this is the widest of the standard internal door widths, a step up from the common 762mm (30 inch) leaf and the wider 813mm (32 inch) size. It suits larger rooms, main hallways and grander openings, where a standard door can look a little narrow and a broader leaf reads as generous and well proportioned. It sits at the top of our range of popular door sizes, and these doors come in the standard 1981mm (78 inch) height. Because it gives the most generous clear opening of the standard sizes, it is also the width most often chosen where easier access matters.

Larger Rooms and Easier Access

A broader leaf changes how a doorway feels and works. In a large room or a main through-route it keeps the proportions right, and because the clear opening you actually pass through is wider once the frame is allowed for, it makes moving furniture and everyday movement easier. That same generous opening is why the widest leaves suit step-free and wheelchair use, and you will find the guidance and the doors best suited to it in our wheelchair accessible doors collection. If your openings are narrower, the range steps down to the standard 30 inch (762mm) door and the wider-than-standard 32 inch (813mm) door, and for an opening wider than a standard leaf, or an odd size, a made-to-measure door can be built to fit. A few things worth checking before you order:

  • Measure the structural opening, not the old door, as a 33 inch leaf needs a wider frame and reveal than a standard door.
  • Confirm the height as well as the width: these doors come in the standard 1981mm (78 inch) height.
  • Decide on construction, solid oak throughout or an oak veneer over an engineered core.
  • Choose a finish, prefinished for hanging straight away or unfinished to oil once it is hung.

Styles and Construction to Choose From

Most of the main styles are made in this width, so choosing the widest size does not limit the design you can have. You will find panelled oak doors and traditional period designs, cottage and ledged styles, shaker looks, and glazed oak doors that borrow light between rooms, in both solid oak and oak veneer. Solid oak doors are oak throughout and can be trimmed and refinished over the years, while oak veneer doors face an engineered core that helps a broader leaf stay stable and flat. Where building regulations call for one, certified FD30 fire doors are made in this width too, always as an oak veneer over a fire-resisting core rather than solid oak, as the core is what carries the certification.

Finishing and Hardware

Unfinished oak doors are ready to seal once they are hung, and the finish you choose makes a real difference to how the oak wears. We recommend a hardwax oil such as Treatex, which protects the wood while keeping the grain visible and is easy to refresh in years to come, rather than a stain, varnish or lacquer. You will find oils and care products in our door treatments range, and matching handles, hinges and latches to finish the job in door hardware.

Yes. 838mm is the metric equivalent of a 33 inch door, so the two describe the same leaf width. You will see both used across the range.

838mm (33 inches) is the widest of the standard internal widths, so it is chosen for larger rooms, main hallways and grander openings where a standard door would look a little narrow, and for the most generous, easy-access clear opening. If you need something narrower, the range steps down through the standard 30 inch and other sizes.

They are among the best choices. Because the clear opening you pass through is narrower than the leaf, the widest leaves give the most generous clear opening, so a 33 inch door suits step-free and wheelchair access. See our wheelchair accessible doors collection for the guidance.

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