Case Study: Restaurant & Bar Lighting — Wood Fixtures in Code-Compliant Hospitality Design
Project: The Ember Room — a 120-seat farm-to-table restaurant in Portland, Oregon
Challenge: Create warm, code-compliant lighting across three distinct zones (bar, dining, private event space) using wooden fixtures that satisfy IBC 803.5 fire code for Group A Assembly occupancy.
📋 Project Summary
| Location | Portland, Oregon, USA — Seismic Design Category D |
| Space | 3,200 sq ft restaurant: bar (800 sq ft), main dining (1,600 sq ft), private event room (800 sq ft) |
| Occupancy | IBC Group A-2 (Assembly — Restaurant) |
| Governing Codes | IBC 803.5 (flame spread), ASCE 7-16 Chapter 13 (seismic), NFPA 13 §8.6.5 (sprinkler clearance), NEC 410 |
| Design Firm | Studio Hearth Interiors, Portland |
| Kingseng Models Used | KS-PL8002 (Wood Cluster Pendant) ×8, KS-WS8002 (Wood Wall Sconce) ×12, KS-PL-006 (Dome Pendant) ×4 |
Zone 1: Bar Counter (800 sq ft)
Lighting Challenge
The bar is the visual anchor of the restaurant — patrons need to see cocktail colors and food plating clearly, but the light must feel warm and intimate, not clinical. Mounting height: 10 ft ceiling, fixtures drop to 7 ft above the bar surface. The bar top is directly under a ceiling sprinkler head.
Solution: KS-PL8002 Wood Cluster Pendants
| Spec | Selection | Reasoning |
|---|---|---|
| Fixture | KS-PL8002 Walnut Cluster Pendant | 3-light cluster provides 360° illumination without dark spots across a 12 ft bar |
| Quantity | 3 units, spaced 4 ft apart | Covers full bar length with overlapping light cones; 30″ above bar surface |
| Bulb | 2700K 800lm E26 LED, CRI 92+ | Warm light renders amber spirits and plating colors accurately; CRI 92+ meets hospitality spec |
| Finish | Solid walnut with fire-retardant clear topcoat | Class A flame spread (FSI < 25) per ASTM E84 — exceeds IBC 803.5 Group A requirement for exit-adjacent zones |
| Seismic | Safety cable kit (included) | Portland is SDC D; fixtures over 20 lb require independent support per ASCE 7-16 |
| Sprinkler | Recessed canopy, compact 8″ hub | No sprinkler obstruction — hub sits below 18″ clearance zone; NFPA 13 compliant without head relocation |
Zone 2: Main Dining Room (1,600 sq ft)
Lighting Challenge
The dining room required layered lighting: pendant clusters over each table for intimacy, wall sconces along the perimeter to wash exposed brick walls, and a warm ambient glow that didn’t compete with tabletop candlelight. Ceiling height: 12 ft exposed beams.
Solution: Mixed Pendants + Sconces
| Layer | Fixture | Qty | Details |
|---|---|---|---|
| Task | KS-PL8002 Wood Cluster | 5 units | One per table, 30-34″ above surface. 2700K dimmable. Each on independent dimmer zone for table-by-table control. |
| Accent | KS-WS8002 Up/Down Wood Sconce | 12 units | Mounted at 66″ along perimeter walls. Up-light bounces off 12 ft exposed beams; down-light washes brick. 2700K warm. |
| Ambient | (Existing) recessed ceiling cans | 8 units | Retained from previous build. Set to 10% on dimmers during dinner service for base fill. |
Zone 3: Private Event Room (800 sq ft)
This room needed to flex between corporate presentations (bright, shadow-free) and evening receptions (intimate, dramatic). The ceiling is a standard 8 ft drywall — too low for hanging pendants without head-clearance issues.
Solution: Recessed-Mount Domes + Wood Sconces
| Fixture | Qty | Purpose |
|---|---|---|
| KS-PL-006 Dome Bronze | 4 units | Semi-flush mount over the presentation area. Narrow cone (40°) focuses 800lm onto a 6 ft conference table without spilling onto projection screen. 3000K neutral white for document readability. |
| KS-WS8002 Wood Sconce | 6 units | Mounted at 60″ around the room perimeter. Evening mode: dim to 20%, creating a warm walnut glow that matches the dining room aesthetic. Day mode: 100% for video calls and presentations. |
Code Compliance: How Every Box Was Checked
| Standard | Requirement | Kingseng Compliance | Result |
|---|---|---|---|
| IBC 803.5 | Class A on exit pathways, Class B elsewhere for Group A-2 | Fire-retardant clear topcoat: ASTM E84 Class A (FSI < 25) on all wood fixtures | ✅ |
| ASCE 7-16 | Independent support for pendants > 20 lb in SDC D | Safety cable kit + certified load calc shipped with each KS-PL8002 | ✅ |
| NFPA 13 | ≥ 18″ clearance deflector-to-obstruction | Recessed canopy design; all pendants verified against RCP during shop drawing phase | ✅ |
| NEC 410 | Luminaire wiring, junction box, grounding | ETL Listed fixtures; installed per manufacturer instructions by licensed electrician | ✅ |
| Energy Code | Oregon Energy Efficiency Specialty Code (OEESC) | All fixtures dimmable; LED bulbs < 10W each. Total connected lighting load: 392W — under 0.5 W/sq ft target | ✅ |
Results & Client Feedback
“The walnut pendants were the single most-commented design element during our soft opening. Guests kept asking where we sourced them. The fire marshal approved our lighting schedule on the first review — no RFIs, no revisions. That alone saved us two weeks on our CO timeline.”
— Sarah Chen, Principal, Studio Hearth Interiors
- Plan check: Lighting submittal approved on first review — zero RFIs from the fire marshal or building department.
- Installation: 20 fixtures installed in 3 days by a 2-person electrical crew. Pre-wired canopies and labeled seismic kits eliminated field confusion.
- Energy: Full restaurant lighting load: 392 watts. Equivalent halogen setup would have drawn 2,200+ watts.
- Maintenance: After 14 months of daily operation: zero fixture failures, zero bulb replacements. Wood finish shows no fading or wear.
Specifying Wood Fixtures for a Restaurant or Hospitality Project?
We’ll prepare a code compliance package tailored to your jurisdiction — ASTM E84 reports, ASCE 7-16 calcs, and an IBC occupancy letter — before you submit for plan check.
Case study prepared by the Kingseng specification team. Project photography and client name used with permission. Technical documentation available upon request. Research support: Compare2Best.