A sliding partition is only as good as the acoustic seal it closes. Any partition manufacturer can build panels that glide smoothly. The harder problem β the one that separates a partition worth specifying from one that looks the part but fails in practice β is engineering the perimeter seals, the panel interlocks, and the track system to close every acoustic gap when the partition is deployed. Sound behaves exactly like air: it finds every millimetre of gap and passes through it without resistance.

At Packsound, a brand of Ecotone Acoustic Limited, acoustic engineering is not a feature we add to a partition system. It is the foundation from which every system is designed. Our sliding partitions achieve up to STC 55 dB of acoustic isolation, operate on top-hung overhead tracks with zero floor penetration, and are installed by our own trained technicians to the specifications our engineers have modelled. We have installed our systems at Crowne Plaza Gurgaon, in corporate headquarters across NCR, in hotel ballrooms in Mumbai and Bengaluru, and in schools and convention centres throughout India.
If you are an architect, interior designer, contractor, or facility owner specifying a sliding partition, sliding folding partition, movable wall, or acoustic partition for any project in India β you are dealing with the manufacturer directly.
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We manufacture five distinct sliding and movable wall system types. Each is engineered for a specific performance band, application profile, and budget. The right system for your project depends on your acoustic requirement, opening dimensions, operational frequency, and finish specification β and our team will advise you precisely at the assessment stage.
Our benchmark system for commercial and institutional applications where acoustic isolation is a defined specification requirement. Multi-layer panel construction β MDF or steel skin faces around a glass wool or high-density mineral wool acoustic core, mounted in a T-6063 anodised aluminium frame β delivers the mass and damping needed for meaningful acoustic separation. Retractable top and bottom seals deploy automatically via handle rotation when each panel is locked into its deployed position, pressing firmly against the floor and ceiling planes. Male-female trapezoidal interlocking aluminium profiles between adjacent panels eliminate the vertical acoustic gaps that defeat budget partition systems.
Acoustic performance: STC 45 to STC 55 depending on specification. Panel thickness: 85 mm and 100 mm standard. Maximum height: Up to 7,000 mm. Panel width: 750 mm to 1,200 mm per leaf. Track system: Top-hung overhead only β no floor track, no floor penetration. Operation: Single-point handle; motorised option available. Finishes: Fabric, HPL laminate, real wood veneer, painted MDF. Standards: IS:9901 (Part III)-1981 | DIN-52210 Part VI-1989 | ISO:140 (Part III)-1995.

An enhanced acoustic specification for the most demanding adjacency conditions: back-to-back conference suites in law firms, clinical consultation rooms in hospitals, premium hotel ballrooms hosting simultaneous events, and multi-screen cinema complexes. This system adds additional mass layers to the panel core, integrates magnetic strip sealing at panel interlocks for zero-gap closure, and uses a reinforced track assembly rated for high-frequency daily operation over a 15-year service life.
Acoustic performance: STC 50 to STC 55+. Panel thickness: 100 mm standard. Seal system: Retractable drop seals top and bottom; magnetic interlock gaskets at panel edges. Operation: Manual single-point handle; full motorisation available. Finishes: Full range including premium fabric, real wood veneer, custom decorative laminate, steel skin.
A highly reconfigurable top-hung panel system designed for spaces that require frequent, independent panel movement rather than single-pass deployment. Individual panels operate on an overhead track network that can incorporate straight runs, curves, T-intersections, and cross-junctions β enabling panels to be moved to dedicated parking bays at multiple positions around the space. This system is the correct specification for large convention centre halls, multi-purpose educational facilities, and event spaces where the configuration changes daily and different panel subsets may need to be deployed independently.
Acoustic performance: STC 38 to STC 48 depending on specification. Panel thickness: 85 mm and 100 mm. Track geometry: Straight, curved, T-junction, cross-junction β fully custom configured. Operation: Manual omni-directional roller; self-sorting and motorised options available.
View Movable Wall Partition β
Where acoustic separation must be permanent rather than flexible, our fixed drywall partition system uses multi-layer gypsum board construction with a mineral wool acoustic core and resilient channel decoupling β eliminating the vibration transmission path through the frame that defeats standard stud partitions. STC ratings comparable to 200 mm brick masonry at a fraction of the weight and a fraction of the construction programme.
Acoustic performance: STC 45 to STC 55 depending on specification. Applications: Permanent room separation, cinema screen walls, recording studio isolation, office private rooms.
View Soundproof Fixed Partition and Drywall β
Every high-performance partition system is only as strong as the weakest element in the acoustic envelope. A STC 55 partition flanked by a standard hollow-core door with a 3 mm gap at the threshold drops the actual acoustic performance of the divided space to below STC 30. Our acoustic wooden doors are specified as an integral part of every partition project β engineered to match or exceed the STC rating of the adjacent partition panel, with automatic drop seals at the threshold, compression seals at all four perimeter edges, and solid-core construction throughout.
STC β Sound Transmission Class β is the standardised measure of how much airborne sound a partition stops. Every acoustic partition product carries an STC rating. Here is what those numbers mean in the real world:
| STC Rating | What You Actually Hear in the Adjacent Space |
|---|---|
| STC 30β35 | Normal conversation clearly audible and intelligible |
| STC 38β42 | Raised voices audible; normal speech intelligible with effort |
| STC 44β47 | Loud speech audible; normal speech not intelligible |
| STC 48β52 | Loud speech barely audible; music faintly heard |
| STC 53β55 | Only very loud sounds faintly perceptible |
| STC 55+ | Near-complete speech privacy; amplified music barely audible |
Why the STC rating on the label and the STC performance in the room are different things.
This is the gap that no competitor in this market explains β and it is the gap that causes buyers the most expensive disappointment. A partition panel rated at STC 52 delivers STC 52 in a laboratory test chamber with perfectly sealed perimeter conditions, no flanking paths, and no gaps. On a real project site, the following factors reduce the installed STC below the panel rating:
Contact our team to understand what STC your project needs and how we engineer to achieve it.
A ballroom that divides into three independent conference rooms generates three simultaneous revenue streams from one floor plate. That commercial logic is the reason every new hotel project of scale in India specifies a movable wall system. But the acoustic performance of the partition determines whether that revenue multiplication actually works β or whether guests in Room A are hosting a conference while hearing the DJ from Room B.
Packsound installed our sliding folding partition system at Crowne Plaza Gurgaon precisely because the hospitality sector’s requirement is the most unforgiving: the partition must look premium enough for a five-star venue, operate silently and smoothly enough for front-of-house deployment, and perform acoustically well enough for simultaneous independent events. Our systems meet all three requirements. Ask us for the Crowne Plaza project brief β we can share it with qualified enquiries.
Typical hotel specification: STC 50 to STC 55 acoustic sliding folding partition with motorised operation, fabric or premium veneer finish, and track routing designed for single-staff operation. Pair with our acoustic wooden doors at all access points in the partition run.
A large training room that splits into two independent meeting spaces, or a town hall area that divides into four focused work zones β this configuration is the standard expectation of modern corporate workplace design across India’s major commercial centres. For professional services firms, financial institutions, and any organisation handling confidential client discussions, the acoustic specification of the partition is also a compliance and risk governance matter.
Complement our partition systems with acoustic wall panels and acoustic ceiling tiles in the divided rooms for a complete solution that addresses both isolation between rooms (partition STC) and reverberation within each created room (room absorption). For focused work areas within the open plan, our soundproof office pods provide individual acoustic enclosures without any civil work.
A school multi-purpose hall that operates as a single assembly space in the morning, two independent examination rooms after lunch, and three separate teaching spaces in the afternoon β a correctly specified movable wall partition makes each configuration possible for non-specialist staff, in under five minutes, without tools.
The acoustic specification for educational spaces balances two requirements: sufficient STC to prevent the noise from one teaching activity bleeding into the adjacent space, and sufficiently quiet operation that the partition can be reconfigured without disruption to adjacent classes. Our movable wall systems for schools meet both requirements, and our acoustic design and consultancy service calculates the target STC for your specific school floor plan and room adjacency conditions.
Clinical consultation rooms require acoustic privacy that is both a patient dignity requirement and a regulatory compliance matter. Partition systems in healthcare environments must also operate quietly (to avoid disturbing patients and clinical procedures), be cleanable to infection control standards, and meet fire safety requirements for patient assembly areas. Our partition systems for healthcare use specify fire-rated panel infill materials and cleanable surface finishes as standard, and our acoustic consultants confirm fire certification compliance for every healthcare project.
Convention centre installations represent the most technically demanding end of the sliding partition market: maximum panel heights (up to 7,000 mm), complex curved and branching track geometries, high acoustic ratings to allow simultaneous conferences, and heavy-duty mechanical specification for daily high-cycle operation over a 20-year building lifecycle. Our convention centre systems use heavy-duty 304 stainless steel roller assemblies, reinforced extruded aluminium track profiles rated for the full panel weight at maximum height, and motorised operation as standard β reducing operational staffing requirements and eliminating the risk of manual misalignment.
Stage 1 β Site Assessment. Our technical team visits the site to measure the opening dimensions precisely, assess the ceiling structural substrate for track mounting, evaluate floor level consistency across the full opening width, and identify any mechanical, electrical, or structural services that intersect with the proposed partition run. For projects still at design stage, we work from current architectural drawings to produce a preliminary specification and track routing layout.
Stage 2 β System Design and Fixed-Price Quotation. Based on the assessment, we specify the system type, panel thickness, core infill, acoustic sealing specification, finish, track geometry, and stack location. We produce a 2D layout drawing showing panel configuration, track routing, stack bay position, and perimeter seal detail β and provide a fixed-price quotation covering manufacturing, delivery, and installation.
Stage 3 β Design Approval and Manufacturing. Upon approval, our manufacturing team produces a detailed production schedule. Panels are fabricated to the approved dimensions: cores are installed and sealed, skins are bonded and finished, aluminium trim profiles are assembled and checked. Every panel is dimensionally verified and seal-function tested before despatch.
Stage 4 β Installation by Packsound Technicians. Our in-house installation team β not subcontracted labour β handles all track mounting work including substrate assessment, support steelwork installation where required, track levelling and alignment to sub-millimetre tolerance, panel hanging and roller adjustment, seal commissioning, and operational testing with the client’s facilities team.
Stage 5 β Acoustic Commissioning and Handover. For acoustic-specification projects, we carry out post-installation acoustic measurement using calibrated equipment and issue a commissioning report confirming the achieved STC against the design target. We train the client’s facilities team in correct operation and provide a maintenance protocol for the seal system.
Packsound sliding partitions are not catalogue products. Every system is manufactured to the dimensions, acoustic specification, and surface finish your project requires.
Fabric finishes are the most acoustically beneficial surface choice for divided rooms, contributing additional absorption within each created space. We offer fabric covering in hundreds of colours and textures β from corporate neutral tones through to bold hospitality statement finishes and branded custom graphics. Our fabric options include standard commercial grades and premium textile ranges for luxury interiors.
High-pressure laminate (HPL) and melamine offers maximum surface durability for educational and healthcare environments with high-contact use. Available in wood grain, plain colour, stone effect, and patterned options from leading laminate manufacturers.
Real wood veneer is the premium specification for executive boardrooms, luxury hotel ballrooms, and high-end hospitality interiors where the partition surface must read as fine joinery, not as a system product. Veneers are available in natural and stained finishes across all major commercial timber species.
Painted and gypsum-faced panels suit budget-conscious applications or situations where the partition is stored behind other wall finishes in its open position and only the deployed face is visible.
Glass inserts and full-height glazed panels can be integrated into any system β individual glazed lites within an otherwise solid panel run, or full-height frameless glass panels β for light transmission between spaces while maintaining the structural and acoustic integrity of the partition system.
Whiteboard surface, pinnable fabric, and digital print options are available for corporate and educational interiors where the partition surface serves a functional working purpose in addition to its division role.
We are an acoustic manufacturer, not a partition manufacturer.Β
Our core expertise is the engineering and control of sound. Every partition system we make is specified, tested, and installed with acoustic performance as the primary objective. Competitors such as ZAK Partitions, Somnandi Industries, Envirotech, and Aluwall are space-division specialists for whom acoustic performance is a secondary feature. We measure acoustic outcomes and commission to verified STC. They do not.
Manufacturer-direct. No dealer markup.Β
We manufacture at our Greater Noida West facility and deal directly with every client. There is no distributor margin in our pricing and no product substitution risk between what is specified and what arrives on site.
Our own installation team.Β
Acoustic partition performance is as much about installation precision as product engineering. Our installation technicians are Packsound-trained, work to our installation standards, and are supervised by technical project managers. We do not subcontract installation to third parties.
Integrated acoustic envelope capability.Β
Sliding partitions address isolation between divided spaces. The acoustic quality within each created room requires ceiling and wall treatment. As a full-range acoustic products manufacturer, Packsound supplies acoustic hanging baffles, fabric-wrapped acoustic panels, acoustic ceiling tiles, and acoustic foam panels for the divided rooms β all under one supply relationship, coordinated by one project team.
Verified project track record.Β
Crowne Plaza Gurgaon. Corporate headquarters across Delhi NCR and Bengaluru. Hotel ballrooms in Mumbai and Hyderabad. School multi-purpose halls and university conference centres. We can share project references, site photographs, and acoustic commissioning data from completed installations β not just marketing claims. View our completed projects β
No. All Packsound sliding partition systems are top-hung β operating entirely from an overhead ceiling track with no floor rail and no floor penetration. The floor is completely unobstructed across the full opening width.
Our acoustic sliding folding partitions achieve STC 45 to STC 55+ depending on panel specification. Our soundproof sliding folding partitions achieve STC 50 to STC 55+. Our acoustic consultants calculate the specific STC target for your room adjacency and specify the appropriate system to achieve it.
Standard systems accommodate heights up to 7,000 mm. For openings beyond this, our engineering team will assess and specify accordingly on a project basis.
Yes. Motorised operation is available for all system types and is standard specification for hotel ballroom, convention centre, and any application where manual operation of many panels is impractical or aesthetically inappropriate for the venue.
A single-bay corporate conference room partition typically takes 2 to 3 working days to install. A multi-bay hotel ballroom system with curved track, parking bays, and motorisation may take 1 to 2 weeks. We confirm the installation programme at the design approval stage.
Our systems use maintenance-free ball-bearing stainless steel roller assemblies that require no lubrication under normal operating conditions. Perimeter seals should be inspected annually β we offer annual maintenance contracts for all installed Packsound systems.
Yes. Provide a physical sample, a designer's finish reference, or a product code from a named laminate or veneer manufacturer and our production team will source or produce the matching material.
We do both β supply-only for contractors who have their own installation capability, and full supply-and-install for clients who want a single-source turnkey project delivery. Acoustic commissioning measurement is included in our turnkey scope.
Request a Free Site Assessment and Quote β
Browse our complete partition range β acoustic sliding folding partition, soundproof sliding folding partition, movable wall partition, and soundproof fixed partition β or speak to our acoustic consultants to define the right system for your project. Read about the Crowne Plaza Gurgaon installation or view our full project portfolio to see installed Packsound systems across India.