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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 comes 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 broadest 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 and the wider-than-standard 32 inch 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, as these doors come in the standard 1981mm (78 inch).
- 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.
Designs for a Grand Opening
Choosing the widest size does not limit the look of the door. Most of the main styles are made at 33 inches, so a broad opening can carry a panelled or six-panel door, a traditional period design, a cottage or ledged style, a clean contemporary flush leaf, or a glazed oak door that lets light run between larger rooms. On a wide door the glazing and panel proportions have room to read properly, which is part of why a broader leaf looks so settled in a generous space. Where the regulations call for one, a certified FD30 fire door is made in this width too.
A Broad Leaf Built to Stay Flat
Stability matters most on the widest leaf, as a broad door has the most room to move. A solid oak door is oak the whole way through and is a substantial piece you can ease to the frame and refinish over the years, while an oak veneer door faces an engineered core built to keep a wide leaf flat and square rather than letting it bow across its width. Doors come prefinished, ready to hang, or unfinished to seal once fitted; for an unfinished leaf we recommend a hardwax oil such as Treatex, which soaks into a large face of oak more evenly than a surface coat and can be refreshed in place rather than stripped and recoated. You will find the oils in our door treatments range and matching handles, hinges and latches 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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