A classic folding door is easy to specify on its own and hard to coordinate on site. The panel, the frame, the track, the wall it closes into, the flooring that runs underneath and the joinery standing beside it all have to agree on level, reveal and finish. That agreement is the real reason folding doors belong in a turnkey furniture and fit-out package rather than on a separate door schedule raised late in the job.

Why folding doors are a coordination item, not a line item

Folding doors let one room do two jobs, and where the swing radius of a hinged door would block a route, the leaves fold and park against one side. Used on a study, a butler's pantry, a dressing area or the opening between an interior room and a terrace, they let one room do two jobs while the door leaves stack neatly to one side. In a villa or serviced-apartment project they usually appear in a run of openings: the same stack, the same finish and a similar detail repeated across floors.

Repetition is what makes the order sensitive to sequencing. A door bought separately arrives with an opening width, a stack depth and a track position already set. If the wall build-up, the floor finish and the adjacent cabinetry are decided by different suppliers, those set numbers are the ones that have to give — on site, at the most expensive moment. Santerson's folding-door range is made to measure: finish, layout and dimensions are specified for each project, and the same coordination can cover the panelling, storage walls and joinery the door closes into.

Where a folding door meets a run of built-in units, that single source settles who owns the gap between the two. Santerson lists integrated door and panelling as a made-to-measure product in its own right, so the door skin and the wall it sits in are specified as one detail and the panel pattern and finish wrap around the opening instead of stopping at it. Closet sliding panels and other panel systems are specified the same way, so the stack of a folding door and the return of a closet front are resolved against the same information rather than on site.

What needs deciding before the door is drawn

A folding-door enquiry becomes buildable when four questions are answered in writing.

• Opening and stack. Clear opening width and height, plus the finished wall thickness and the wall build-up that the frame fixes into. State which way the leaves stack and where they park, because that clears a strip of wall and floor that shelving, skirting and switch plates then cannot occupy.
• Track and threshold. Whether the door hangs from a top track or runs on a bottom track decides the floor detail. With a continuous floor finish — engineered oak flooring meeting a tile or stone band at the same opening — the threshold, the level difference and any expansion gap need one decision maker, not two trades.
• Finish continuity. The door face should be read against the joinery next to it. Santerson lists material and finish options on each door and on each built-in unit, so the same approved sample carries through built-in furniture and the interior doors elsewhere on the floor.
• Hardware and duty. Hinges, handles, track, wheels and any lock or latch are listed separately, opening by opening. Santerson's own product notes ask buyers to confirm the dimensions and hardware requirements for each order, so the schedule states what is included instead of leaving it to be found on site.

Two adjacent openings usually need the same decision at the same time. Classic pocket doors and the folding leaves can serve one corridor, and the wall cavity that a pocket door needs only works if it is drawn before the wall is closed. Where an opening leads to a terrace, a folding door on the inside and classic French double doors or a sliding set on the outside are two details that read better when they are decided together.

Keeping the folding door inside the package

A single project usually passes through several suppliers for doors, joinery, flooring, wall panelling, bathroom fixtures and lighting, and every interface between them is a risk. Santerson's one-stop service describes design consultation and space planning, material selection and product specification, manufacturing and quality control, project management and site coordination, and final installation and handover. For a buyer, that means the door schedule, the joinery schedule and the finish schedule can be issued from one design and production coordination process rather than three.

The custom and OEM route covers the door skin itself. Santerson describes custom furniture design and prototyping, bespoke material finishes and textures, and material choices across wood, metals, engineered stone and laminates — which is how a folding-door panel is matched to a veneer wardrobe front or to wooden sliding doors elsewhere in the same apartment. A made-to-measure door ordered against an approved sample is a different proposition from a catalogue unit modified on site.

Freight is where a separate door order tends to show up late. Santerson's logistics service covers freight forwarding by sea, air or rail, together with packaging and container loading, the customs paperwork and door-to-door delivery. Ordering doors, joinery and finishes from one supplier means those items travel together on the same paperwork, so receiving is checked against one list rather than several. On arrival, installation and after-sales support covers the joinery and the fitted ironmongery in the same visit, so the tracks are set and the leaves aligned by the team already on site.

Where folding doors earn their place on the drawing

Three details show up repeatedly in villa and apartment work.

• Room division without a dead wall. A folding run across a study or media room lets one opening close for privacy and open for daylight. The leaves fold against one side, so the floor in front of the opening stays clear in the way a pair of hinged doors cannot.
• Service openings and storage. Pantries, laundry alcoves and dressing areas are the openings that get closed most and photographed least. Pairing the door with a made-to-measure front such as a custom bedroom wardrobe keeps the whole wall reading as joinery when it is shut.
• Finish handover. Specify the door, the frame and the adjoining panelling with a single sample reference. A door approved against a board sample travels through production, freight and installation as a known item; one approved from a photograph does not.

Santerson lists material and finish options and project-tailored layouts for the glass folding door and the wood-veneer folding door as separate entries in the same folding-door collection, so the choice between a glazed leaf that borrows light down a corridor and a solid veneer leaf that matches the joinery is a specification decision, not a change of supplier.

Enquiry checklist for a usable door schedule

Send the drawings with the openings marked, the stack direction noted, the floor finish at each threshold named, and the joinery or panelling that the door sits against identified. Santerson's cooperation steps run from the project brief and design proposal to quotation and detail confirmation, then production and shipment with follow-up, so the hardware set, the finish and the dimensions come back written against each opening before anything is cut.

Enquiries go to Santerson's Longjiang, Shunde, Foshan base by phone or WhatsApp on +86-13928214007 or by email at santerson@qq.com, and the site's contact page states that enquiries receive a response within 24 hours.