Gypsum board partitions for offices in Dubai: what to specify

What stud gauge and spacing does Dubai Municipality expect for office partitions?

Dubai Municipality requires 0.55 mm to 0.75 mm galvanised steel studs at 600 mm centres for typical office heights up to 3.6 metres. Heavier gauges apply for taller walls or higher fire ratings. The stud system must be a tested single-stud partition system.

• 0.55 mm gauge for walls up to 2.7 metres with 30 minute rating.
• 0.60 mm gauge for walls up to 3.0 metres with 60 minute rating.
• 0.75 mm gauge for walls above 3.0 metres or where acoustic partition rating Dubai exceeds 45 dB.

On site, verify the stud label shows the manufacturer, gauge, and coating class. Ask the supplier for a copy of the test report that matches the exact stud profile and spacing you plan to use. A common mistake is ordering 0.55 mm studs for a 3.2 metre wall because the quotation only listed gauge without height limits. Compare quotations by checking that each includes the same stud gauge, spacing, and deflection head allowance. Request written confirmation that the stud system has been tested as a complete assembly to BS 476 Part 22 or EN 1364-1, not just component tests.

Which gypsum board core — Type X, moisture-resistant, or sound-rated — goes where?

Zone based selection avoids over-specifying and keeps cost predictable. Use Type X gypsum board for fire corridors and stair lobbies. Use moisture-resistant gypsum core for pantry backs, toilet adjacencies and exterior wall abutments. Use sound-rated board for meeting rooms and open plan zones where acoustic partition rating Dubai is critical.

• Fire zones – Type X gypsum board, 12.5 mm, tested to BS 476 Part 22 fire test.
• Wet zones – moisture-resistant gypsum core, 12.5 mm, green face.
• Acoustic zones – high density sound-rated board, 15 mm, rated to ISO 10140.

When reviewing quotations, ask for a board schedule that maps each room type to a specific board product code. Confirm that the moisture-resistant board carries a green face marking and that the sound-rated board density is at least 800 kg/m3. On site, check board edges for damage and ensure boards are stored flat and dry. A frequent error is using standard board in toilet adjacencies, which leads to swelling and joint failure within months. Request written confirmation from the supplier that each board type meets the relevant UAE Fire and Life Safety Code requirements for the intended location.

How do you achieve a 60-minute fire rating on a single-stud partition?

A 60 minute rating depends on the complete assembly not on board alone. Install 12.5 mm Type X gypsum board on both faces of 0.60 mm studs at 600 mm centres. Apply fire-rated joint compound with fibreglass tape at every joint. Seal perimeter with fire-rated acoustic sealant to maintain integrity.

Key steps:

• Verify board and stud test reports match BS 476 Part 22 fire test.
• Use proprietary fire-rated joint compound, not standard all-purpose.
• Install deflection head detail with slip-track and sealant.
• Inspect each penetration before cover-up.

Before installation, ask the main contractor for the fire strategy drawing that shows which partitions require 60 minutes. Ensure the quotation includes fire-rated joint compound and fibreglass tape as separate line items. On site, photograph each joint after taping and before second coat to document compliance. A common oversight is using standard joint compound on fire-rated walls, which invalidates the rating. Request a method statement from the installer that sequences joint treatment, penetration sealing, and inspection hold points.

What joint treatment prevents cracking at ceiling deflection heads?

Ceiling deflection heads move up to 20 mm under slab creep. Use a deep-leg track or proprietary slip-track that allows vertical movement. Fill the gap with fire-rated acoustic sealant and cover with a flexible joint tape. This detail maintains fire and acoustic integrity while preventing surface cracks.

Typical detail includes:

• Slip-track fixed to stud, not to slab.
• Sealant depth minimum 10 mm.
• Joint tape rated for movement.

During coordination, confirm the structural engineer's predicted slab deflection for the floor above. Ask the partition installer to provide a shop drawing showing the exact slip-track product and fixing centres. On site, measure the gap between the top of the board and the slab before installing the slip-track; it should match the design allowance. A frequent problem is fixing the track to the slab with powder-actuated pins, which prevents movement and cracks the board. Request written confirmation that the sealant used is compatible with the board face paper and has been tested for cyclic movement per ASTM C719.

When should you use fire-rated acoustic sealant at service penetrations?

Every HVAC diffuser, electrical conduit, data cable tray and pipe penetration must be sealed. Apply fire-rated acoustic sealant before board installation where possible. For retrofits, cut back board, install mineral wool backing, then seal. This satisfies Dubai Municipality partition approval and maintains the acoustic partition rating Dubai.

• HVAC diffuser cut-outs – seal perimeter.
• Electrical back-boxes – fire-rated putty pads.
• Data trunking – intumescent wrap plus sealant.
• Pipe sleeves – mineral wool and sealant.

Coordinate with MEP contractors to produce a penetration schedule that lists each opening size, location, and required sealing system. Ask for a written sealant submittal showing fire test data for the specific sealant and backing material combination. On site, inspect each penetration before the board goes up; once covered, verification is impossible. A typical mistake is using standard acrylic sealant instead of fire-rated intumescent sealant, which fails under fire exposure. Compare quotations by checking that each includes mineral wool backing, intumescent wrap, and fire-rated sealant as separate items, not lumped into a generic "sealing" line.

How do you coordinate partition layout with HVAC diffuser and lighting positions?

Partition layout must be frozen before MEP first fix. Produce MEP coordination shop drawings that show stud centres, diffuser centres and lighting back-boxes. Align stud centres with diffuser necks to avoid on-site chasing. Confirm lighting positions with the lighting consultant and the main contractor. interior fit-out works teams use these drawings to sequence installation.

• Issue partition shop drawings to MEP team at design development.
• Mark stud centres on reflected ceiling plan.
• Reserve 100 mm clearance around each diffuser.
• Coordinate lighting back-box depth with board thickness.

Hold a coordination workshop with the MEP subcontractor, ceiling contractor, and partition installer before first fix. Agree on a clash resolution log that tracks each conflict and its resolution. On site, verify that diffuser necks align with stud centres within a 10 mm tolerance; misalignment forces the installer to notch studs, weakening the partition. Request written sign-off from the MEP contractor that all services are within the agreed zones before partition boarding starts. A common error is moving a diffuser after partitions are boarded, which requires cutting and patching that compromises fire and acoustic performance.

What finishing level ensures paint readiness without skim coating?

Specify a Level 4 finish per GA-214-2010 for standard office walls that will receive flat or low-sheen paint. This requires three coats of joint compound over joints and fasteners, with sanding between coats, leaving a uniform surface free of tool marks. For critical lighting conditions such as boardrooms or reception areas, specify Level 5 finish which adds a skim coat of setting-type compound over the entire surface.

• Level 4 – three coats, sanded, suitable for flat paint.
• Level 5 – Level 4 plus full skim coat, required for gloss paint or critical side lighting.

Include the finish level in the partition specification and in each quotation line item. Ask the installer for a sample panel showing the proposed finish before full-scale work begins. On site, inspect joint compound application under raking light to detect ridges or depressions. A frequent mistake is accepting Level 3 finish for painted walls, which leads to visible joint telegraphing after painting. Request written confirmation that the joint compound brand and type are compatible with the specified paint system. If the project uses a premium paint with high sheen, budget for Level 5 from the outset to avoid costly rework.

How do you verify acoustic performance after installation?

Acoustic partition rating Dubai depends on flanking transmission through ceilings, floors, and service penetrations as much as the partition itself. After installation, engage an acoustic consultant to conduct on-site sound insulation testing per ISO 16283-1. Test at least one partition of each type: fire-rated, acoustic-rated, and standard. Compare measured DnT,w values to the design target.

• Test before ceiling tiles are installed to isolate partition performance.
• Seal all penetrations and perimeter gaps before testing.
• Record background noise levels and reverberation times.

Include acoustic testing as a hold point in the project programme. Ask the partition installer to provide a certificate of compliance for the board and stud system, but do not rely on laboratory data alone. On site, common flanking paths include unsealed cable trays above the ceiling, back-to-back electrical boxes, and gaps at the slab interface. Request a written test report from the acoustic consultant and share it with the design team for sign-off. If results fall short, the report will identify the weakest element for targeted remediation.

Where to go next

Zesto Tech handles this work end to end — measurement, shop drawings, production, installation and handover:

• Kitchens
• Custom Joinery Works

What documentation should you collect for Dubai Municipality handover?

Dubai Municipality partition approval requires a complete dossier at project close-out. Assemble the following for each partition type: stud and board test reports, fire-rated joint compound and sealant data sheets, installer method statements, inspection records with photos, acoustic test results, and as-built shop drawings showing all penetrations and deflection head details.

• Fire test reports for stud and board assembly.
• Sealant and joint compound product data sheets.
• Signed inspection checklists for each hold point.
• Acoustic test report per ISO 16283-1.
• As-built drawings with penetration schedule.

Start the documentation register at project kick-off and assign responsibility to the site quality manager. Request digital copies of all certificates from suppliers before materials arrive on site. A common delay at handover is missing test reports for proprietary sealants or slip-tracks. Keep a master folder indexed by partition type and location. Ensure the main contractor submits the complete package to the consultant for review at least two weeks before the Municipality inspection.