Gypsum Partitions in Abu Dhabi
Drywall partitions for offices, villas and fit-outs — built as a specified assembly, not a sheet of board screwed to a stud. We set out the frame, the board type, the cavity and the sealing detail around what the room actually has to do: divide, stay quiet, or hold a fire rating.
A Gypsum Partition Is a System, Not a Board
The part people picture is the plasterboard. The part that decides how the wall performs is everything behind it: a galvanised steel C-stud frame at set centres, the board type and how many layers of it, what sits in the cavity, how the perimeter is sealed, and how the holes for sockets and services are treated. Change any one of those and you change what the wall does — which is why we quote the assembly rather than a price per square metre of board.
GI C-studs, typically 64mm or 70mm for an office partition, set at 600mm centres and fixed into track top and bottom. The stud width sets the cavity, and the cavity is where the acoustic performance lives.
Standard board for a plain dividing wall; fire-rated board where the space needs a rating; moisture-resistant board in wet areas. These are different products, not grades of the same one.
The Part Most People Get Wrong About Fire Rating
A fire rating belongs to a tested assembly, not to a sheet of board. Fire-rated board has a glass-fibre-reinforced core that keeps the sheet intact once it is hot — classified EN 520 Type DF or ASTM Type X. Standard board has no such reinforcement and cannot form part of an approved rated wall however many layers you add.
What makes the rating valid is the whole configuration matching what was tested: the board type and layer count, the stud width and gauge, the fastener type and spacing, the perimeter sealing, and fire stopping at every service penetration. Substitute a lighter stud or drop a layer to save cost and the assembly no longer holds its rating — even though the finished wall looks identical.
In commercial premises this is not academic. Fire-rated partitions are inspected against the UAE Fire and Life Safety Code before a space can be occupied, so the specification needs to be right at quote stage rather than corrected afterwards.
If your space needs a rated partition, say so on the first call. It changes the board, the stud, the fixings and the sealing detail — it is not something to add at the end.
Why the Meeting Room Still Leaks Sound
Acoustic isolation is mostly a function of mass and sealing, and both are easy to get wrong cheaply. The useful numbers: filling the stud cavity with mineral wool typically adds around 5–8 points to a partition’s sound rating, and each additional 12mm layer of gypsum adds roughly 5–7 points. Counter-intuitively, a lighter-gauge stud and wider stud spacing also help, because a stiffer frame transmits more vibration between the two board faces.
The partition stops at the ceiling tile
A wall built only to the suspended ceiling leaves an open plenum above it. Sound walks straight over the top. If the room needs privacy, the partition has to run to the structural slab.
An empty cavity
A stud cavity with nothing in it is a drum. Mineral wool in the cavity is typically worth around 5–8 points on the partition’s sound rating — the cheapest acoustic improvement available.
Unsealed service penetrations
Sockets, data boxes and conduit holes are a direct path for both sound and, in a rated wall, fire. On a fire-rated assembly they have to be fire stopped, or the rating is void.
Mixed components on a rated wall
Substituting a lighter stud gauge or dropping a board layer to save money invalidates the tested assembly. The wall may look identical and still not hold its rating.
| Standard board | Fire-rated (EN 520 Type DF / ASTM Type X) | Moisture-resistant | |
|---|---|---|---|
| Core | Plain gypsum | Glass-fibre reinforced — holds together when hot | Water-repellent additives |
| Can form a rated assembly | No, at any layer count | Yes, when the whole tested configuration is matched | No |
| Where it is used | Plain dividing walls | Anywhere a fire rating is required | Bathrooms, kitchens, wet areas |
Which One Does Your Floor Plate Need?
Gypsum where you need privacy, a fire rating, or a surface to fix cabinets and screens to. Glass partitions where you want daylight to carry through the space. Most office fit-outs we do use both — gypsum for the enclosed rooms and services walls, glass for the meeting rooms facing the open plan. We fabricate the aluminium framing for the glass side ourselves, so one team sets out the whole floor rather than two trades working around each other.
Send us the floor plan or a photo of the space on WhatsApp, and tell us whether any wall needs a fire rating — we can scope it before anyone visits.→We build gypsum board partitions for offices and villas across Abu Dhabi — including Khalifa City, Mohammed Bin Zayed City, Al Reef, Al Reem Island, Saadiyat Island and Yas Island.
01What is the difference between a normal gypsum partition and a fire-rated one?
The board. Fire-rated board has a glass-fibre-reinforced core that holds the sheet together once it is hot — classified EN 520 Type DF in the European system or ASTM Type X in the American one. Standard board has no reinforcement and cannot form part of an approved fire-rated assembly, no matter how many layers you put on.
02Can you add fire rating later by screwing on another layer?
Not reliably. A fire rating belongs to a tested assembly, not to a board. The board type, the number of layers, the stud gauge and width, the fastener spacing, the perimeter sealing and the fire stopping at every service penetration all have to match the configuration that was tested. Change one of them and the rating no longer applies.
03How thick is a typical office partition?
A common 60-minute arrangement is a single layer of 15mm fire-rated board on each side of a 64mm or 70mm GI C-stud frame with studs at 600mm centres. Overall thickness lands around 94–100mm. Higher ratings usually mean more layers rather than a thicker stud.
04Why does sound still travel through my meeting room wall?
Usually one of three things: the cavity is empty, the partition stops at the ceiling tile instead of running to the slab, or there are unsealed penetrations for sockets and services. Filling the cavity with mineral wool typically adds around 5–8 points to the partition’s sound rating; taking the wall to the slab and sealing the penetrations is often worth more than that.
05Does an extra layer of board help with sound?
Yes. Each additional 12mm layer of gypsum adds roughly 5–7 points, because acoustic isolation is largely a function of mass. Wider stud spacing and a lighter gauge stud also help, which is counter-intuitive but real.
06Gypsum or glass partition for an office?
Gypsum where you need privacy, a fire rating, or something to fix cabinets and screens to. Glass where you want the daylight to carry through the floor plate. Most fit-outs we do use both — gypsum for the enclosed rooms and glass for the meeting rooms that face the open plan.