In a hotel built between the 1960s and 1980s, the typical gap between the dimension drawn on the floor plan and the real dimension at the finished wall is 2-4 cm across the width of a standard room, with peaks of over 6 cm in rooms created by successive subdivisions. This figure governs everything that follows in the process. On a flush-fitted wardrobe inside a 240 cm recess, a 3 cm difference means either a piece of furniture that doesn’t fit or an open gap visible from the doorway. From here follows how you measure, what you measure, and who signs the measurement sheet.
Contents
Why the floor plan isn’t enough for bespoke furniture
The floor plan describes the raw wall or the structural line. Between that line on the CAD drawing and the wall a guest actually touches, there’s plaster, skim coat, sometimes a plasterboard stud wall, coverings, skirting. Every layer carries its own tolerance, and tolerances add up in the least convenient direction. In historic buildings or ones refurbished three times over, which make up most Italian hotels, there’s also the fact that walls aren’t flat and corners aren’t square.
Floor plans remain useful for understanding the layout, counting rooms and putting together a preliminary cost estimate. The leap happens when those dimensions are used to send pieces into production. Then there’s the opposite case to the piece that doesn’t fit, and it’s more insidious because it looks solved: a wardrobe forced into a narrower recess goes out of square, the doors don’t close flush, the hinges work under torsion, and after two seasons the door scrapes against the upright. The fault gets blamed on the furniture, but it originates in the survey.
How to measure a room: the three-height method
A tolerance of just a few centimetres calls for a deliberately redundant measuring method. Every wall is measured for width at three heights: at the floor, above the skirting, around 10-15 cm; at mid-height, between 110 and 120 cm; and up high, at 15-20 cm from the ceiling. The three figures almost never match. For a flush-fitted piece, the smallest value governs, but all three are needed to understand how the wall behaves and where to distribute the tolerance.
Heights are taken at the corners and in the centre. Hotel floors have often been laid over the existing one and carry a slope, and suspended ceilings are rarely level. On a floor-to-ceiling wardrobe, a 2 cm difference between one corner and another changes the way the top panel and the plinth are worked.
Then squareness is checked, with a set square or the 3-4-5 method, and the two diagonals of the room are measured. If they differ, the room is a parallelogram or a trapezoid, and this needs to be noted straight away on the survey sheet, because it determines what compensating elements will be needed.
A survey carried out this way takes roughly 15 to 30 minutes per room when the rooms are repetitive, and considerably longer when every one is different.
Services and fixed elements to survey beyond the walls
The second consequence is that the survey isn’t limited to the walls. The position, height from the floor and bulk need to be recorded for power and data sockets, switches, bedside light controls, the card reader, the thermostat, radiators or fan coils with their valves and pipework, cable trunking, the TV socket and the fixing point for the television bracket.
Then there are the fixed elements that steal space without showing up on the plan: the height and thickness of the skirting, the projection of window sills, window reveals, door architraves, the direction the door opens and the bulk of the door itself, thresholds and changes in level. A 10 mm skirting board changes the usable depth of a piece fitted flush to the wall: it’s solved with a groove routed into the back panel or with a spacer strip, as long as the decision is made at the design stage.
| Element surveyed | Measurements taken | What it determines |
|---|---|---|
| Wardrobe wall | width at 3 heights, height at 3 points, recess depth | Feasibility of the flush fit |
| Bed wall | net width, position of sockets and controls | Headboard centring and bedside power |
| Radiator or fan coil | width, height from floor, projection, pipework | Shaping of plinths and back panels |
| Skirting | height and thickness | Real usable depth |
| Window sill | height from floor and projection | Maximum height of desks and under-window furniture |
| Bathroom door | clear opening, direction of opening, door bulk | Interference with furniture and passageways |
Shaping a plinth around a return pipe is a twenty-minute job in the workshop and half a day on site with a jigsaw. The difference comes down to one line written during the survey.
Access, corridors and the lift: checking the furniture will actually fit through
The part of the site survey most often skipped concerns the route the furniture takes from the truck to the room. A piece of furniture can be perfect on every measurement and still end up stuck in the street.
You need to survey the width of the vehicle entrance and the manoeuvring space for a 7.5 or 13.60 metre lorry, any restricted traffic zone with its time windows, steps at the entrance, the clear width of the main door and any lobby doors, corridor widths, the turning radius at changes of direction, and the width and rise of the stairs. The decisive figure is the internal dimensions of the lift car, the clear width of the car door, and the weight capacity in kilograms.
A 90×120 cm lift with a 70 cm door won’t let a 230 cm wardrobe side through. Knowing this at the design stage isn’t a problem: the furniture is designed in modules to be assembled in the room, and installation goes ahead normally. Discovering it on delivery day only opens up expensive routes: pieces that need remaking as a flat-pack version, or lifting from outside using a cherry picker or platform, roughly 600 to 2,500 euros a day, plus the cost of occupying the public road.
Sample rooms or individual survey: how many rooms to measure
The third consequence concerns how many rooms need a full survey. In properties built as hotels, rooms cluster into families: standard double, twin, single, triple, accessible room. Two or three rooms from each family are surveyed in full, along with every corner room, loft rooms and rooms with particular constraints. On the rest, a check is carried out on four critical measurements: the width of the wardrobe wall, the usable height, the width of the bed wall, and the position of the sockets. If these fall within the tolerance of the sample room, production goes ahead on the sample measurements; otherwise, that room becomes a case of its own.
In properties converted from historic palazzi or residential buildings, every room is different and each one needs its own survey. It costs more at the design stage, but it’s the only way to avoid ending up with furniture that fits twelve rooms out of twenty. There, it’s better to think in terms of a standard carcass plus compensating elements worked to suit each individual room, so production stays industrial and the adaptation stays local.
Accessible rooms need a dedicated survey, because errors there can’t be compensated for with a trim strip: turning space, clear door openings, the heights of controls and worktops, and clearance spaces need to be checked, following the criteria of Law 13/1989 and DM 236/1989. The survey should also record the dimensions for accessible rooms: turning space, clear door openings, and the heights of handles and worktops.
A hinged door that intrudes into the manoeuvring space makes the room non-compliant even with an otherwise flawless piece of furniture: it’s why hotel wardrobes in those rooms are designed with sliding doors.
Survey documentation: photos, a file per room and a signature
The survey wraps up with documents, because numbers on their own age badly. Every room needs to be photographed methodically: one shot per wall taken head-on, one per corner, close-ups of sockets, radiators, pipework, sills and any anomaly. The files need renaming with the room number and wall, otherwise, faced with eighty images of similar-looking rooms, they’re no use to anyone.
What reaches production is a file per room: a hand or CAD dimensioned sketch, a table of measurements, numbered photos, notes on any critical points. That same file is what the hotelier signs, and it’s the moment the measurements stop being an opinion. Liability follows from there: if the supplier carried out and signed off the survey, a piece of furniture that’s out of size is their problem; if the client provided the measurements, it isn’t. This needs putting in writing before starting, along with the rest of the design process.
On equipment, laser scanning and photogrammetry perform best on communal areas and spaces with complex geometry. In a bedroom, a good laser distance meter, a rigid tape, a spirit level and a set square remain faster, provided whoever is holding them knows which piece of furniture will go where: a survey carried out without the design in mind is exactly the one that leaves out the measurement that will actually be needed.
How to prepare the hotel for survey day
The site survey is far more productive if the hotel arrives prepared. Free, empty rooms are needed, agreeing with reception on a block of four or six rooms at a time, returned to sale within a few hours. A list of rooms by type is needed, with the real numbering used by staff. Any available floor plans are needed, even old ones, along with services diagrams if they exist, plus a point of contact who knows the building and can open plant rooms and storage areas.
Known constraints need to be declared: restricted traffic zones, loading time windows, shared courtyards, heritage authority requirements. It needs to be clear which rooms will stay operational during the works, because it affects the production sequence, and any spaces usable as temporary storage on each floor need to be flagged.
One point that looks trivial but isn’t: if decisions about the floor, bathroom or ceilings are still open, they need to be stated before measuring. In that case, the planned finished dimension is recorded, noted as such, and reconfirmed before production is launched.
What a measurement error costs in bespoke furniture
A bespoke wardrobe that needs remaking for a standard room comes to roughly 900 to 2,200 euros for the product alone, on top of transport, a second installation visit and the lost nights. A room out of action for an extra fifteen days in high season, with an average yield of 120 to 180 euros a night, costs more than the piece of furniture that held it up.
This is why the site survey, which looks like the least technical stage of the process, is the one where the outcome of the whole job gets decided. A quote built on measurements taken on site and signed off has almost no margin for surprises; one built on an archived CAD file still has its surprises ahead of it.
Frequently asked questions about hotel site surveys and measurements
Is the site survey free?
In standard contract practice, the first commercial site visit, the one used to understand the project and put together a quote, is normally at the supplier’s expense. The executive measurement survey, that is, the one that generates the production measurements, is a technical service: it’s carried out after the quote is accepted and is often already included in the contract.
Can I send my own measurements instead of having a technician come out?
For a rough estimate, yes, and it’s useful because it shortens the time needed for a first quote. For production, no: measurements taken by someone who doesn’t know where and how to measure can’t be treated as contractual data. DIY surveys almost always contain an error somewhere in the usable depth or the heights.
How long does the survey of a 40-room hotel take?
It depends on how repetitive the rooms are. With uniform, empty rooms, one day with two technicians is usually enough for the sample survey, checking the rest, the communal areas and verifying access. With every room different, two or three days are needed, and if the rooms aren’t free, the timescale stretches out.
What happens if a wall is 3 cm out of square?
Nothing serious, as long as it’s known in advance. Compensating elements are designed: filler panels, a shaped top, sculpted plinths, trim strips. These are routine jobs for anyone producing bespoke furniture and don’t have a meaningful effect on cost. It only becomes a problem if it’s discovered on installation day.
Does the survey need redoing if I change the floor or the ceiling?
Yes, at least for the vertical measurements. A new floor changes the usable height and the plinth dimension, a lowered ceiling changes the height of floor-to-ceiling furniture. If these works are planned, the executive survey should either be scheduled afterwards, or carried out using the planned finished dimensions and reconfirmed later.
Who’s liable if the measurements turn out to be wrong?
Whoever carried out and signed the survey. This is why the report needs signing by both parties: if the supplier took the measurements, a piece of furniture that’s out of size is their responsibility; if the client provided them, it stays with the client. This should be clarified in the contract before starting.
