Skyhatch Series · CTD25
WORLD-FIRST
ZENITH+
Single & Multi-Shutter · Custom Size Series
ZENITH+ is SKYHATCH’s flagship large-format modular ceiling access system engineered for projects where standard trap doors are simply not enough.
Designed for the reality of modern commercial and high-end residential interiors where HVAC plant rooms, large MEP zones, and extensive service areas require unobstructed, professionally engineered ceiling access of sizes that were previously impossible.
The largest Zenith+ installation to date: 18 feet × 8 feet (5500 × 2400mm) — delivered for a Noida project. Architects and fit-out contractors can now specify ceiling access for situations they previously had no solution for.
Specifications
Product Code
IQUBX CTD25 / Skyhatch Zenith+
Configuration
Single or multi-shutter (2, 3, 4+ panels)
Size Range
Any custom size — 900×1500mm to 5500×2400mm and beyond
Standard Configs
900×1500 · 1500×2400 · 2400×6000mm
World Record
18' × 8' (5500 × 2400mm) — largest delivered to date
Opening Mechanism
All shutters slide to one or both sides — 100% unobstructed access
Locking System
Allen key lock — secure for large, heavy shutters
Safety
Steel wire retention on each shutter · Allen key unlock required
Frame Depth
Outer frame flange 26.8mm
Groove Visibility
2–2.5mm shadow groove
Materials & Compliance
Infill Thickness
10–12mm in shutter
Infill Compatibility
MR Gypsum · Pre-laminated particle board · ACP · Laminate/Veneer on WPC · Honeycomb panel
On-site Fabrication
Yes — unique capability for precise bespoke sizing
Support Structure
MS threaded rods / flat hangers for large installations (above 1200mm)
Ceiling Compatibility
Gypsum / MR board / POP / ACP / Laminate / Veneer / WPC / Louvred ceilings
Certification
Greenpro Type 1 Ecolabel, IGBC
Retrofit
Can replace existing wooden trap doors in-situ
Guide
No other
manufacturer
does this.
Zenith+ was engineered specifically for commercial and high-end residential projects where access requirements exceed anything standard products can offer. Every shutter slides independently — fully to one or both sides — leaving the entire opening unobstructed.
- Fully custom size — any dimension from 900×1500mm up, with on-site fabrication capability
- Multi-shutter system — 2, 3, 4+ panels slide independently for 100% open access
- Steel wire retention each shutter is retained; Allen key unlock required for security
- MS threaded rod support — for installations above 1200mm, direct slab connection ensures structural integrity
- Retrofit-ready — can replace existing wooden trap doors in-situ without full ceiling demolition
Ordering Guide
01
Specify your A-size — the visible opening dimension in the ceiling, edge-to-edge. Any custom size accepted.
02
Frame B-size = A-size + 26.8mm on all four sides. Outer flange overlaps and hides the ceiling board edge.
03
For sizes above 1200mm, include MS threaded rod / butterfly hanger attachment points from building slab in your drawings.
04
Choose number of shutters (2, 3, 4+) based on required opening width and access frequency.
05
On-site fabrication available — unique Skyhatch capability for precise bespoke sizing after delivery.
Available Sizes · Opening Dimension A
900x500
MM
1500×2400
MM
2400×6000
MM
Any Custom Size — Your Specification
Largest: 5500 × 2400mm (18' × 8')
Skyhatch is the world's first modular ceiling access system engineered for architects who refuse to compromise on finish.
ZENITH+
Explore Zenith+ Series Finishes
Installation Guide
Designed for straight forward installation.
Determine opening size (A-size)
Measure the required opening in the false ceiling. This is your A-size — the dimension to order. Add 26.8mm on all four sides for the framing cutout.
Fix to ceiling subframe
The outer frame is fixed to the main ceiling support from 2+ main sections. For Zenith+ above 1200mm, MS threaded rods or flat butterfly hangers from slab provide additional support.
Board the ceiling (preferred method)
Ideally, fix the Skyhatch frame before the final gypsum board layer. The outer flange overlaps and conceals the gypsum board edge with a clean 2–2.5mm groove.
Apply ceiling finish to shutter
Cut your ceiling finish material (gypsum, ACP, laminate, etc.) to fit inside the shutter frame. Paste or fix to base board. The shutter matches the ceiling exactly.
Fit shutter and test operation
Slide the shutter into the frame. Push-lock (Planea) or Allen key lock (Zenith+). Test opening and closing. The proprietary hinge mechanism holds the shutter firmly — it cannot come loose.
Fit shutter and test operation
Slide the shutter into the frame. Push-lock (Planea) or Allen key lock (Zenith+). Test opening and closing. The proprietary hinge mechanism holds the shutter firmly — it cannot come loose.
