Oak Internal Doors

Oak internal doors bring warmth, natural grain and a timeless look to any room. Our oak doors are built with a real oak veneer over a stable engineered core, so they keep the beauty of oak while staying straight in a centrally heated home. Choose prefinished doors ready to hang, or unfinished doors to oil or lacquer yourself. Browse oak internal doors and buy online with fast UK delivery.

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Why Buy Oak Internal Doors from Emerald Doors?

Warmth and Natural Grain

Oak brings a warm tone and distinctive grain that suits traditional and modern homes alike, and ages beautifully over the years.

Real Oak Veneer, Engineered Core

Our oak doors use a genuine oak veneer over an engineered core, which keeps the look of solid oak while resisting the warping that affects solid timber indoors.

Prefinished or Unfinished

Choose prefinished oak doors that arrive ready to hang, or unfinished doors you can oil, wax, or lacquer to your own taste.

Classic and Modern Styles

From traditional panelled and Mexicano designs to clean flush and shaker doors, our oak range covers every interior style.

Glazed and Fire Door Options

Many oak doors come with clear or frosted glazing, and as FD30 fire-rated versions certified to BWF Certifire or BS 476 Part 22.

10 Year Guarantee

Every oak internal door is backed by our conditional 10 year guarantee against faulty materials or workmanship.

FAQ About Oak Internal Doors

Are your oak internal doors solid oak?

Our oak internal doors use a real oak veneer over an engineered core rather than solid oak throughout. This keeps the natural look and feel of oak while staying far more stable, as solid oak can warp, twist or split in a centrally heated home.

Do oak internal doors come prefinished or unfinished?

We offer both. Prefinished oak doors arrive sealed and ready to hang, while unfinished doors are supplied bare so you can apply your own oil, wax or lacquer. Check each product to see how it is supplied.

How do I treat internal oak doors?

If your oak door is unfinished, seal it before or soon after fitting to protect the timber and bring out the grain. Lightly sand, remove all dust, then apply a finish such as hardwax oil, Danish oil or a clear interior lacquer, following the maker's instructions.

What finish is recommended for internal oak doors?

A clear hardwax oil or Danish oil is a popular choice, as it enhances the grain, is easy to apply and can be recoated without stripping. An interior lacquer gives a tougher, more uniform finish. Exterior products are not needed indoors.

How do I finish oak internal doors?

Sand lightly with a fine grit, wipe away dust, then apply thin, even coats of your chosen oil or lacquer along the grain. Let each coat dry, lightly de-nib between coats, and finish both faces and all four edges to seal the door fully.

How often do oiled oak doors need re-coating?

Oiled oak doors usually need a fresh coat every few years, or sooner in high-traffic spots. Recoating is simple: clean the surface, let it dry, and brush or wipe on another thin coat of the same oil.

What sizes do oak internal doors come in, and can they be made to measure?

We stock common UK standard sizes such as 1981mm x 762mm, and make oak doors to measure for non-standard openings. Most doors can be trimmed slightly for a precise fit.

Are oak fire doors available?

Yes. Many oak designs are available as FD30 fire rated versions, certified to BWF Certifire or BS 476 Part 22, for rooms where building regulations require a fire door.