Hotel Lighting FF&E Documentation: The Drawings and Certificates Behind a Metis Maison Fixture

When a hotel group approves a chandelier, the fixture is only half of what gets approved. The other half is paper: drawings for the structural engineer, photometric files for the lighting designer, wiring diagrams for the electrical contractor and certificates for procurement and the local inspector. Without them, a finished fixture can still wait in a warehouse.

What is in a hotel lighting FF&E submission package?

An FF&E (furniture, fixtures and equipment) submission for decorative lighting is the set of documents that lets the design team, owner and contractors approve and install a fixture without guessing. Metis Maison lists some items as part of every project and others as available on request:

What should dimensioned CAD and shop drawings show?

Metis Maison describes two layers of drawing. The dimensioned CAD drawings are the approval drawings: they show the fixture as the designer and the owner will see it. Behind them sit shop drawings built from 3D SolidWorks models, in which the company says every weld, fastener and load path is dimensioned, with the structural calculations attached. The shop drawings are what the factory builds from and what a structural engineer checks.

For a design review, the useful question is not whether drawings exist but whether they answer what each reviewer needs. As general practice, a drawing set for a decorative hotel fixture should let you check the following:

• Overall dimensions, overall drop and the adjustable range of the suspension, measured against the finished ceiling height.
• Canopy size and fixing pattern, so the ceiling contractor can plan backing plates and access.
• Weight of the complete fixture and, for pieces that ship in sections, of each section.
• Materials and finishes called out part by part, matching the approved finish sample.
• Positions of the light sources, the driver location and access for maintenance and relamping.
• Revision number and date, so that every reviewer approves the same version.

Material grades can go on the drawings too. The company states SUS304 or SUS316 stainless steel at 1.5-3 mm wall thickness, and hand-cut K9 crystal with lead oxide of at least 24%. If those figures matter, ask for them on the drawing and for the mill sheets in the submittal.

Who stamps the drawings, and when is a third-party stamp needed?

According to its FAQ, all of Metis Maison's FF&E drawings are stamped by its in-house engineers. When a hotel group requires it, they are re-stamped by a third-party consultant. For the Sheraton Shaoxing Yukun lobby chandelier, a multi-tier bronze structure more than six metres across, the company describes a full SolidWorks 3D model and a load-path analysis signed off by a registered engineer.

Whether you need the second stamp is set by the hotel group's brand standards and the approving authority, not by the supplier. Raise it at quotation and say which fixtures it applies to, because an external review adds a step to the schedule.

How are the IES photometric files produced?

IES files hold the photometric data a lighting designer loads into calculation software to model how a fixture lights a room. Metis Maison says IES files for every catalogue reference are available on request, generated by its lighting-design partner in DIALux or Relux. For project-specific designs it models the space in DIALux and provides a full luminaire layout and illumination report, at no extra cost on orders above USD 30,000.

An IES file is only useful if it matches the fixture that will be delivered. Re-scaling, a new finish or a different LED module can all change the light output. As general practice, check three things:

• The file names the reference and configuration it describes: size, number of light sources, shade or diffuser.
• The colour temperature and output in the file match the specification. Metis Maison tunes LED modules from 2700K to 4000K at CRI 80, 90 or 95+, within 3-step MacAdam ellipses.
• The file is reissued if the fixture changes after the prototype is approved.

What should the wiring diagrams cover?

The wiring diagram is what the electrical and controls contractors work from, and for a hotel the key content is usually dimming. Metis Maison lists 0-10V, DALI, phase-cut and Casambi or Lutron wireless dimming, and integration with Lutron, Crestron, KNX, DALI-2 and Casambi. Drivers and dimming modules are pre-wired in the factory to the project's control specification, tested and labelled.

For that, the factory needs the control specification before production. Send the control system, protocol, zone plan and scene requirements with the FF&E schedule, then check the diagram against it: driver type and position, protocol, supply voltage for the destination market, earthing and labels. A ballroom pendant that dims to 1% for banquets, as at Sheraton Shaoxing Yukun, belongs on the diagram.

How are suspension points and ceiling loads documented?

Suspension point calculations show the load at each hanging point of a fixture. The structural engineer uses them to confirm that the slab or steel above can carry it, and the ceiling contractor uses them to place backing plates and anchors. Metis Maison includes them in every FF&E package, alongside shop drawings with the load path dimensioned.

Several stated engineering choices end up in these documents. Fasteners are ISO 898 grade 8.8 at minimum, A4-80 stainless for coastal sites, and fixtures are engineered to IBC / ASCE 7 seismic provisions where a project requires it. Every chandelier over 12 kg is pre-hung in the factory on its actual suspension hardware, balanced and photographed; a pre-hang load test report is available on request.

The Sheraton Shaoxing Yukun lobby chandelier shows why this is settled in the factory. It was test-hung on the cables and hardware that would travel to site and delivered in four pre-assembled sections, each lit and photographed before crating. At that size, balance, wiring and ceiling load cannot be adjusted on site.

What arrives on site with the fixture?

The recommended installation sequence tells the installer in which order to assemble and hang the fixture. Metis Maison adds a site-reassembly drawing and parts list inside each crate, so the installer does not depend on an email attachment. Container-loading photos and a packing list are sent before the vessel sails, and on multi-site projects the shipment can be split into per-site containers with per-site packing lists.

For overseas projects, the company can send a senior engineer for the pre-hang and the first installation, typically for 5-10 days, with travel quoted separately. Schedule the visit around the most complex fixture and have local installers work alongside.

Whose name is on the certificates, and what does Metis Maison sign itself?

This is the part of the package where wording matters most. Metis Maison states that its fixtures are produced within the supply chain of a long-term audited manufacturing partner in the Pearl River Delta, operating since 2003. Most production certificates are issued to and held by that facility, and the company says they apply to Metis Maison shipments. The factory address and SGS audit reference are disclosed under NDA.

These are the certificates the company lists, with the status it gives for each:

• UL: file E362995, UL 153 portable luminaires, active under UL's factory follow-up service.
• ETL (Intertek): 240200052TPE-001, fixed luminaires, active.
• CE-LVD to EN 60598: model-tested.
• RoHS 2.0 to EU 2015/863: model-tested.
• FSC chain of custody, certified by SGS Hong Kong: valid 2025 to 2030.
• amfori BSCI social audit by SGS: ID 26-0385758, valid 2026 to 2027.

On top of these, Metis Maison, as the commercial exporter, issues a Certificate of Conformity and a commercial invoice for every project. The CoC is the exporter's own declaration for the shipment. It gives customs and your procurement team one accountable party, but it is not a substitute for the test report on the model: a complete submittal carries both.

What does model-tested mean for CE and RoHS?

UL and ETL listings are kept under continuous factory follow-up, with the certification body inspecting ongoing production. CE-LVD and RoHS rest on test reports for specific models, which Metis Maison says are updated annually against current production. A CE or RoHS report covers the model tested, not everything the factory makes.

So which report covers a bespoke fixture? The company says reports are issued per model against the destination market, and once a project is confirmed it provides the matching report from the live factory file. Reports for models you are not commissioning are not shared.

Ask, line by line, which report and standard apply to each fixture, and whether a re-scaled version stays within that report or needs its own test. UKCA and SAA are listed as available on request; confirm the route and timing before fixing an opening date.

How do you plan the NDA step into a submission schedule?

Metis Maison works NDA-first. A mutual NDA is signed before any mood board, drawing or supplier name is exchanged, and certificate PDFs, the BSCI audit summary, the partner factory's address and its SGS audit reference are released under it. For FF&E procurement companies, the NDA, a vendor code and a per-project submittal package are standard.

None of this is unusual, but it adds steps that a submission calendar often leaves out. A workable order is:

• Sign the mutual NDA at the first enquiry, before sending the FF&E schedule and design drawings.
• Send the schedule with quantities, finishes, destination market and control system; a clear BOQ gets an itemised quote within 24 hours.
• At quotation, list the documents you need by name, including any third-party stamp, the pre-hang load test report and mill sheets.
• Once the project is confirmed, request the model-specific test reports and certificate PDFs for each line.
• Review drawings, IES files and wiring diagrams together, and issue comments in one round where possible.
• Assemble the submittal with the CoC and the test reports side by side, and keep the PDFs within the NDA's distribution limits.

What should a procurement team check before submitting?

On timing, the company states that concept and shop drawings take 1-2 weeks of an overall 8-14 week lead time for most bespoke hospitality projects, so the document review sits early in the programme and is worth staffing accordingly.

Metis Maison Lighting was founded in 2012 and makes chandeliers, wall sconces, table lamps and pendants from two facilities totalling 3,800 sqm in Zhongshan. The simplest test of any supplier: ask for this package by name and see how much arrives without a second request.