MG900 Crittall-style glazed sliding acoustic doors in a modern office environment

Case Study · Glazed Acoustic Partitions

Crittall-Style Acoustic Doors
That Transform Office Space

Two sets of MG900 glazed sliding acoustic doors installed to create flexible meeting spaces — delivering Crittall aesthetics with up to 33 dB acoustic performance.

2

Door Installations

3.3m + 6.6m

Opening Widths

3 Panels

Per Set

Rw 33 dB

Acoustic Rating

Project Overview

Flexible Working Spaces with a Distinctive Industrial Edge

This project involved the installation of two sets of our MG900 glazed sliding acoustic doors to create two independently operable, flexible working spaces within a modern office environment.

One opening spans 3.3 metres and the other 6.6 metres — both consisting of three panels connected together to form a continuous sliding door system. When closed, the doors provide meaningful acoustic separation; when open, they disappear neatly to one side, merging the spaces into a single open-plan area.

The MG900 glazed system delivers the increasingly popular Crittall-style black steel aesthetic alongside genuine acoustic performance — a combination that is difficult to achieve without a purpose-engineered solution.

Project Details

System
MG900 Single Glazed Crittall Sliding Doors
Quantity
2 sets of 3-panel continuous sliding doors
Opening 1
3.3m wide × 3 panels
Opening 2
6.6m wide × 3 panels
Acoustic Performance
Rw up to 33 dB
Frame Finish
Crittall-style black steel aesthetic
Application
Flexible meeting & working spaces
Sector
Commercial Office

The Challenge

Acoustic Performance Without Sacrificing Design

The client required glazed acoustic sliding doors for two separate flexible meeting spaces within an open-plan office. The brief had two equally important demands that are often in tension with each other: the doors needed to deliver meaningful acoustic separation to enable private meetings and focused work, while also reflecting the contemporary Crittall-style aesthetic the interior design team had specified.

Standard glazed partitions and off-the-shelf sliding door systems could not meet both requirements simultaneously. The client needed a purpose-engineered solution that would handle openings of two very different widths — 3.3 metres and 6.6 metres — while maintaining a consistent visual language across both installations.

Acoustic isolation for private meetings
Crittall black steel frame aesthetic
Two openings: 3.3m and 6.6m widths
Smooth, effortless panel operation
Flexible open-plan when not in use
Consistent design across both sets
Close-up of MG900 Crittall-style black steel frame sliding acoustic door with chrome handle

The Solution

MG900 Single Glazed Crittall Sliding System

We specified and installed two sets of our MG900 single glazed Crittall sliding folding partition system. The MG900 is engineered specifically to deliver the visual character of traditional Crittall steel windows — slim black profiles, geometric glazing bars — combined with the acoustic sealing and hardware performance required for a functional partition system.

Each set uses three panels connected together to form one continuous sliding door. The top-hung track system means there is no floor channel to trip over and no obstruction to the floor finish — critical for a polished commercial interior. Both sets slide smoothly to a single stack position, fully clearing the opening when the spaces need to be combined.

3-Panel Continuous Sliding

Three connected panels per set form a single fluid sliding door

Top-Hung Track System

No floor channel — clean finish, no trip hazard

Acoustic Sealing Hardware

Drop seals and perimeter gaskets achieve Rw up to 33 dB

Crittall-Style Black Frame

Slim black steel aesthetic profiles with geometric glazing bars

The Result

Two Flexible Spaces. One Seamless Aesthetic.

The completed installation gives the client two independently operable meeting spaces that can be closed off for private, acoustically separated work sessions, or opened fully to create a single large collaborative area. The transition takes seconds and requires no specialist knowledge — any team member can reconfigure the space as needed throughout the working day.

The Crittall-style black steel frames have become a defining feature of the interior, complementing the office's industrial-modern design language. The consistent visual language across both sets — despite the significant difference in opening width — gives the space a considered, designed feel that clients and visitors notice immediately.

Up to 33 dB

Acoustic Reduction

< 30 sec

Space Reconfiguration

Zero

Floor Channel Obstruction

2 Spaces

Independently Operable

MG900 glazed sliding doors open showing flexible meeting space merging with open-plan office

Technical Specifications

MG900 System Performance Data

System

MG900 Single Glazed

Crittall-style sliding folding partition system with slim black steel aesthetic profiles

Acoustic Rating

Rw up to 33 dB

Achieved via acoustic drop seals, perimeter compression gaskets and precision-fitted panels

Frame

Crittall Black Steel

Slim-profile black powder-coated frame with geometric glazing bars — authentic industrial aesthetic

Glazing

Single Glazed

Clear or manifestation options available. Toughened safety glass as standard

Operation

Top-Hung Track

No floor channel required. Smooth top-hung sliding system with precision-engineered rollers

Configuration

Multi-Panel Continuous

3 panels per set connected to form one continuous sliding door — suitable for large openings

Opening Sizes

3.3m & 6.6m

Custom-engineered to precise opening dimensions. Suitable for a wide range of commercial applications

Finish Options

RAL Colour Range

Frame available in any RAL colour. Black (RAL 9005) specified for this installation

Accreditation

FIS Accredited Installer

ModernGlide is FIS accredited with CHAS, Constructionline and Builders Profile registration

CHAS accreditationBuilders Profile accreditationConstructionline accreditation

Specify the MG900

Ready to Create Your Own Flexible Acoustic Spaces?

Our team will work with you to specify the right MG900 configuration for your opening dimensions, acoustic requirements and design brief. We supply and install nationwide across the UK.

Contact Us

Phone

01932 918338

Email

sales@modernglide.co.uk

Address

Unit 15A Highway Farm
Horsley Road, Cobham
KT11 3JZ