# False Ceilings & Partitions

> False ceilings and partitions are the grid or gypsum ceilings and the drywall, demountable or glass walls of an office fit-out. Grid ceilings keep the plenum accessible while gypsum gives a seamless surface, and partitions around rooms needing privacy run to the slab, since walls stopping at the ceiling leak sound through the shared plenum.

## What we deliver

**Grid and gypsum ceilings, drywall, demountable and glass partitions** —
installed as part of the fit-out and coordinated with everything that runs above
and through them.

Ceilings and partitions look like the simplest package on a fit-out. They are
actually the package that touches every other trade: sprinklers, diffusers,
lighting, cable tray, smoke detection and speakers all land in or pass through
them, and every cabin wall interrupts all of it.

## Scope of works

| Stage | What we deliver |
| --- | --- |
| Coordination | Reflected ceiling plan agreed against MEP and sprinkler layouts |
| Setting out | Grid alignment to the module, partitions to the layout |
| Framing | GI framework, hangers, studs and track |
| Boarding | Grid tiles, gypsum board, acoustic or fire-rated where required |
| Services | Cut-outs for diffusers, lights, detectors, speakers, sprinklers |
| Finishing | Jointing, taping, skimming, paint |
| Compartmentation | Partitions to slab and plenum sealing where required |

## Ceiling types

| Type | Best for | Trade-off |
| --- | --- | --- |
| Mineral fibre grid | General open plan | Accessible; standard appearance |
| Metal grid | Corridors, wet areas | Durable; higher cost |
| Gypsum | Reception, curves, feature zones | Seamless; access needs traps |
| Acoustic baffles / rafts | Open plan noise control | Effective; requires coordination |
| Exposed services | Informal and creative offices | No ceiling cost; MEP must look intentional |

## Where projects go wrong

- **Reflected ceiling plan not coordinated before boarding.** Then diffusers,
  sprinklers and lights fight for the same tile and the ceiling looks accidental.
- **Meeting room partitions stopped at the ceiling.** Sound travels over the
  wall through the shared plenum. The room is visually private and acoustically
  not.
- **Compartmentation broken by the fit-out.** Partitions crossing a fire
  compartment line must maintain the rating, including at penetrations.
- **Access ignored.** A gypsum ceiling over a floor full of VAV boxes and valves
  means cutting it open the first time anything needs service.
- **Grid module set out from the wrong edge.** Cut tiles at the visible end
  rather than the concealed one — a small decision that reads as sloppy for the
  life of the fit-out.

## Why Hagerstone

**15 carpenters in-house** within a team that also delivers the MEP the ceiling
has to accommodate — so the reflected ceiling plan is coordinated internally, not
negotiated between two contractors on site.

**79+ quality checkpoints** under ISO 9001 / 14001 / 45001, on a 60-day delivery
model with a 5-year warranty.

## Standards referenced

Compartmentation, fire rating and plenum stopping under **NBC 2016, Part 4**.
Gypsum plasterboard material requirements under **IS 2095**.

## Frequently asked questions

### Grid ceiling or gypsum — which should we use?

Grid wins wherever the plenum needs to stay accessible, which is most open-plan office area — lifting a tile to reach a VAV box or a cable tray is far cheaper than cutting and re-skimming plasterboard. Gypsum wins where you want a seamless surface, curved or stepped forms, or a specific acoustic or fire rating. Most offices use both: grid across the general area, gypsum at reception, corridors and feature zones.

### Should partitions run to the slab or stop at the ceiling?

It depends what the wall is for. A partition that stops at the ceiling is cheaper and quicker but leaks sound over the top through the shared plenum, which is why meeting rooms built that way are never actually private. Rooms needing confidentiality — MD cabins, HR, board rooms — should run to the slab with the plenum sealed. Getting this wrong is the single most common acoustic complaint after handover.

### What is a demountable partition and is it worth the cost?

It is a partition designed to be taken down and reassembled elsewhere rather than demolished. It costs more upfront than drywall. It is worth it where layouts genuinely change — growing teams, short leases, floors that get reconfigured every couple of years. On a stable ten-year layout, drywall is the sensible answer.

## Sources

- [NBC 2016, Part 4](https://www.bis.gov.in/standards/national-building-code/?lang=en) — Fire and life safety — compartmentation
- [IS 2095](https://standards.bis.gov.in/website/published-standards/department-wise) — Gypsum plaster boards

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Source: https://hagerstone.com/services/interior-fit-out/false-ceilings-and-partitions