Frameless Door Frame Guide: Flush and Plaster-In Frames

A frameless door frame is the aluminium (or similar) profile that lets a hinged door sit flush with the wall, with no architrave and no visible timber lining. Plaster or plasterboard is brought right up to the frame edge, so when the door and wall are painted the same colour, the opening reads as a fine shadow gap rather than a traditional door surround.

You will also see the same idea sold as a flush door frame, plaster-in frame, concealed frame or invisible door frame. The names overlap. This guide explains what the frame actually does, how it differs from standard linings and from jib or fully disguised doors, and what to plan before you buy one for a UK home.

What a frameless door frame is

On a conventional internal door, a timber lining sits in the opening and architrave covers the joint between lining and wall. The door hangs from butt hinges on the lining. Everything is meant to be seen.

A frameless door frame replaces that lining with a slim structural profile, usually aluminium, fixed into the studwork or masonry before the wall is finished. Manufacturers such as Eclisse (Syntesis flush hinged frames) describe an edge profile that allows plaster to finish crisply up to the frame. Others use a dovetail or mesh detail so the skim coat keys to the metal and is less likely to crack along the joint.

Once the wall is finished, only a hairline gap around the leaf remains visible. The door hangs on concealed hinges inside the frame. Latches are often magnetic so no bolt sticks out when the door is open. For a wider product view, see our concealed doors range and the flush to wall doors guide.

Frameless frame vs standard lining vs jib door

It helps to separate three ideas that get mixed up in conversation.

Standard lining and architrave

Timber or MDF linings with architrave are still the default in most UK houses. They are forgiving of imperfect plaster, easy to replace and familiar to every carpenter. They do not give a flush wall plane.

Frameless / flush / plaster-in frame

This is a hinged door in a hidden frame, flush on one face of the wall. The frame is part of the architecture. It is not trying to disguise the door as wallpaper or panelling; it is trying to remove the visual weight of the surround. Paint the leaf to match the wall for a near-invisible look, or contrast it for a crisp modern feature.

Jib door / fully concealed door

A traditional jib door carries decoration across the leaf — skirting, dado, panelling or wallpaper — so it disappears as a wall panel. Many modern concealed doors combine a frameless frame with that finish. See jib doors explained and hidden door ideas. A frameless frame is the technical base; a jib finish is optional dressing on top.

How the frame differs from a pocket door system

A frameless hinged frame and a pocket door kit both hide metalwork in the wall, but they do different jobs.

• A frameless hinged frame stays in the opening; the door swings on concealed hinges.
• A pocket frame creates a cavity beside the opening so a sliding leaf can disappear into the wall.

Do not order one when you mean the other. If space saving is the goal and you can spare a pocket, look at pocket door kits. If the look of a flush hinged door matters more than swing space, choose a frameless frame. Our pocket door vs concealed door comparison unpacks the choice further.

Push or pull: only one face is flush

A hinged frameless door is flush on one side of the wall only. The other side shows a reveal. Manufacturers sell push and pull versions:

• Push: you push the door away from you; the face you stand on is flush.
• Pull: you pull the door towards you; that face is flush.

Decide which room should get the flush face — usually the hallway or main living space — before the frame is fixed. Some sets, including reversible systems and products such as our frameless hidden door kit and Concealed Omega primed door set, can be configured left or right and push or pull, but the choice still has to be locked in before plastering. Technical notes on frame orientation sit in our concealed door frame details guide.

Wall preparation and installation order

Timing is the detail that makes or breaks a frameless frame. Italian maker FIP Porte puts it plainly in its flush-to-wall installation guidance: the aluminium frame is fixed into the wall and disappears under the finish, so the door is installed while the wall is being built, not afterwards. Other concealed-frame makers give the same order: fix the frame after the rough opening is ready, then plaster, skim, tile and finish floors around it.

A typical plasterboard sequence: build the stud opening to size; set the frame (often with the door in it) and wedge to height above the finished floor — FIP’s sheet, for example, uses a 6mm undercut; plumb and square while testing the swing; fix through the maker’s brackets, with extra care on the hinge side; board exactly to the frame detail; tape or mesh the joint; skim to the frame line; then paint and final-adjust hinges and latch.

Masonry openings use anchors and a skim to the frame instead of boarding onto it. Always follow the system’s detail sheet — improvising the joint is how cracks appear. Our how to install a concealed door guide expands on the sequence.

If your walls are already finished, you can still fit a frameless frame, but expect to cut back plaster around the opening and make good. It is a renovation job, not a like-for-like lining swap.

Hardware that belongs with a frameless frame

Because the frame is hidden, the ironmongery is usually hidden too.

• Concealed hinges adjustable in several axes, rated for the door weight.
• Magnetic latches that stay flush when the door is open — see our magnetic latches for concealed doors guide.
• Privacy versions for bedrooms and bathrooms where you need a thumbturn.
• Handles from minimal levers to flush pulls, depending on push or pull and how invisible you want the door to feel.

Match latch, hinge and handle to the frame maker’s templates. Mixing brands without checking backsets and cut-outs is a common cause of poor closing. Browse concealed doors accessories once the frame type is chosen.

Finishes and painting

Most frameless frames arrive primed. The leaf is often primed too, ready for site painting. For a disappearing look, paint door and wall the same colour in the same sheen, including the edges of the leaf. For a feature look, contrast the leaf and keep the wall calm.

Seal any factory-routed edges and site cut-outs before final coats. If the door will sit in a humid room, confirm the leaf and frame are suitable and keep extract ventilation working. Fire-rated openings need a tested fire door assembly — do not assume a decorative frameless frame is certified for fire use unless the documentation says so.

UK buying tips

Before you order: measure the structural opening and finished wall thickness; decide push vs pull and handing early; confirm stud, metal stud or masonry compatibility; check whether hinges, latch, seals and door are included; ask about plaster-crack detailing (dovetail, mesh, reinforced edge); and keep the install guide on site for the plasterer. For non-standard sizes, use made-to-measure or a bespoke concealed door set.

Ready-to-go options such as the frameless hidden door kit and Concealed Omega primed door set package frame and leaf together, which reduces mismatch risk.

Frequently asked questions

Is a frameless door frame the same as a concealed door?

Almost. The frameless frame is the hidden surround. A concealed or flush-to-wall door is the complete set: frame, leaf and ironmongery. People often use the names interchangeably.

Do I still need architrave?

No. The point of a frameless door frame is to finish plaster to the metal edge so architrave is not used on the flush face.

Can I fit a frameless frame in an existing finished wall?

Yes, but you will need to open up the lining zone, fix the frame, and re-plaster up to it. Plan decoration on both sides of the opening.

Will the plaster crack along the frame?

Good systems are designed to reduce that risk with rigid profiles and keyed edges. Follow the maker’s joint reinforcement and do not rush the skim. Poor fixing or a twisted frame is a more common cause of cracks than the idea of a metal frame itself.

How is this different from a pocket door?

A frameless frame is for a hinged flush door. A pocket kit is for a door that slides into the wall. Choose based on whether you need zero swing space or a flush hinged look.

Get the frame right before the plasterer arrives

A frameless door frame only looks effortless when the opening, handing and wall build-up were decided early. Choose the system, fix it plumb, and let the plaster follow the metal line. Explore our concealed doors and concealed doors accessories, or ask us to match a frameless frame and leaf to your wall type before the boards go up.