The frame does more than surround a door — it carries the hinges, holds the door square and helps it seal against draughts. Get the material right and the door hangs true and lasts; get it wrong and you'll fight sticking, warping or rot. Here's how the main door frame materials compare, and how to choose the right one for your door and opening.
The main door frame materials
Timber (solid wood) is the classic choice, and the natural partner to a timber door. It's strong, can be painted or stained to match anything, and is easy to repair rather than replace. It does need treating and occasional care — left bare and damp it can warp or rot — but a well-finished timber frame lasts for decades.
MDF is engineered from wood fibres: smooth, stable and cost-effective, and it takes paint beautifully. It's a sensible choice for budget internal frames in dry rooms, but it isn't as strong as solid wood and will swell if it gets wet, so it's not for exposed or damp spots.
uPVC is a low-maintenance plastic that shrugs off the weather, which is why it turns up on many modern external openings. The trade-off is looks — it offers far less character and fewer finishes than timber, and can't match a traditional home.
Aluminium is strong, slim and corrosion-resistant, favoured on contemporary and commercial buildings. It's the priciest option and comes in a limited palette, so it suits a modern aesthetic rather than a period one.
Door frame materials at a glance
| Material | Strengths | Trade-offs |
|---|---|---|
| Timber | Classic looks, paints/stains, repairable, strong | Needs treating; can warp or rot if neglected |
| MDF | Smooth, stable, cost-effective, paints well | Weaker than timber; swells if it gets wet |
| uPVC | Weatherproof, low-maintenance | Limited looks, not traditional |
| Aluminium | Strong, slim, corrosion-resistant | Pricier, few finishes, modern-only |
Which frame material should you choose?
For most homes it's timber. It pairs naturally with a timber door, can be finished to match the room, and is repairable — our Frames & Linings are solid oak and primed timber for internal doorways. MDF is a fine budget option for internal frames in dry rooms. uPVC and aluminium make sense on modern or commercial builds. And if you're framing an external door, the frame has to take the weather — so choose a purpose-made external door frame built for the outdoors, never a plain internal lining.
Frames for internal and external doors
Whichever material you pick, match the frame to where the door lives. For internal doorways, our frames & linings come in solid oak, white and walnut. For an entrance that faces the weather, our external door frames are built for the outdoors — solid oak, oak-faced engineered and FSC-certified hardwood, supplied as reversible frame-and-cill kits with integral weather seals, and finished at the threshold with weather bars and door seals.
Frequently asked questions
What's the best material for a door frame?
For most homes, timber — it matches a timber door, takes paint or stain, and can be repaired. MDF suits budget internal frames; uPVC and aluminium appear on modern or commercial builds.
What's the difference between a door lining and a door frame?
A lining is the lighter timber surround an internal door hangs from; a frame is the heavier surround used for external and fire doors. We supply both.
Is MDF or solid wood better for a door frame?
Solid wood is stronger and more durable, especially anywhere damp; MDF is smoother and cheaper, best kept to dry internal openings.
What are external door frames made of?
Treated solid timber. Ours come in solid oak, oak-faced engineered and FSC-certified hardwood, as frame-and-cill kits with weather seals rated for outdoor use.
Can you paint or stain a timber door frame?
Yes — timber (and MDF) take paint or stain well, so you can match the frame to the door or the surrounding décor.
Choosing your frame
Get the frame right and the door hangs true, seals properly and lasts for years. For most homes that means timber — solid oak and primed frames and linings for internal doors, or a weatherproof external door frame for an outside entrance. Not sure what you need? Our team is happy to help.
Related reads
| How to Fit Door Lining | Fit a lining straight and secure |
| How to Repair a Rotten Door Frame | Fix weather-damaged timber |
| Can Door Frames Be Replaced? | When to repair vs replace |
