# Glass Partitions & Doors for Offices

> Office glass partitions are single- or double-glazed toughened screens, frameless doors and acoustic glazed rooms that divide a floor while keeping it open. Single glazing gives visual separation; rooms needing confidentiality need double glazing with offset thicknesses and a sealed head, base and plenum, because sound mostly leaks around the glass rather than through it.

## What we deliver

**Glazed office partitions, frameless doors and acoustic glazed rooms** —
specified around the privacy each room actually needs rather than a single
default applied across the floor.

Glass is what makes a modern office feel open while still being divided. It is
also where acoustic expectations quietly break: clients specify glass for
daylight and openness, then expect the confidentiality of a solid wall.

## Scope of works

| Stage | What we deliver |
| --- | --- |
| Requirement | Which rooms need visual separation, which need confidentiality |
| Specification | Single or double glazed, glass thickness, acoustic target |
| Detailing | Head, base and jamb junctions; plenum sealing above |
| Hardware | Patch fittings, floor springs, locks, closers |
| Fabrication | Cut-outs formed before toughening |
| Installation | Setting out, alignment, glazing, sealing |
| Finishing | Manifestation, film or frit, handover |

## Specification by room type

| Room | Typical specification |
| --- | --- |
| Open-plan screen | Single glazed, frameless or slim framed |
| Standard meeting room | Single or double glazed, partition to slab |
| MD cabin / HR / board room | Double glazed, offset thicknesses, sealed plenum |
| Reception / feature | Frameless, low-iron glass, patch-fitted doors |
| Focus / phone booth | Double glazed with full acoustic sealing |

## Where projects go wrong

- **Glass specified for openness, judged on privacy.** Decide per room what it
  actually has to do before choosing the build-up.
- **Perimeter sealing ignored.** Sound over the head track through the shared
  plenum defeats even good glazing.
- **Hardware chosen after the glass is ordered.** Cut-outs are made before
  toughening; a late change means new glass.
- **Manifestation forgotten.** Full-height clear glass in a circulation route is
  a walk-into hazard and needs visible marking.
- **Floor spring pocket formed badly.** The most common cause of frameless doors
  that sag, bind or stop closing.

## Why Hagerstone

**Glass expertise across the business.** The same organisation delivers facade
glazing, structural silicone and frameless entrance doors, so interior glazing is
detailed by people who work with glass at building scale — not treated as a
joinery afterthought.

**In-house fabrication** with CNC-grade machinery, under ISO 9001 / 14001 / 45001
and 79+ quality checkpoints.

## Standards referenced

Architectural safety glass, including where toughened or laminated is required,
under **IS 2553 (Part 1)**. Means of egress and door requirements under **NBC
2016, Part 4**.

## Frequently asked questions

### Single or double glazed partition for a meeting room?

Single glazing is fine for visual separation — a room you can see into but do not need confidentiality in. Double glazing, with an air gap and ideally offset glass thicknesses, is what you need for a room where conversations must not carry. The mistake is specifying single glazing for an MD cabin or an HR room and then being surprised that people outside can follow the conversation.

### Does glass need to be toughened?

Yes for office partitions and doors. IS 2553 governs where safety glass is required, and any full-height glazed screen or door in a circulation area falls squarely in it. Frameless doors are typically 12mm toughened, with all holes and cut-outs made before toughening — which is why hardware has to be finalised before the glass is ordered.

### Why do glass rooms still leak sound even when double glazed?

Almost always the perimeter, not the glass. Sound goes over the head track into the shared ceiling plenum, under the floor, or through an unsealed junction. A double-glazed screen with an open plenum above it performs worse than a well-sealed single-glazed one. The detailing at head, base and jamb decides the result.

## Sources

- [IS 2553 (Part 1)](https://standards.bis.gov.in/website/published-standards/department-wise) — Safety glass — architectural
- [NBC 2016, Part 4](https://www.bis.gov.in/standards/national-building-code/?lang=en) — Fire and life safety — means of egress

---

Source: https://hagerstone.com/services/interior-fit-out/glass-partitions-and-doors