Wood Furniture (Desk / Table)

Material Composition Assumptions

The default reference product is a medium wood desk or table weighing approximately 35 kg, composed of:

• Wood panels: Melamine-faced chipboard (MFC) or medium-density fiberboard (MDF) for the desktop surface and shelving — approximately 22 kg. Alternatively, solid hardwood (oak, beech, rubberwood) for premium products at comparable weight.
• Frame and legs: Solid timber or steel tube frame — approximately 8 kg. Default assumes a wood-and-steel hybrid construction typical of mass-market desks.
• Surface finish: Melamine laminate, lacquer, or UV-cured varnish — approximately 0.5 kg of coatings and adhesives.
• Hardware: Steel drawer slides, screws, cam locks, hinges — approximately 1.5 kg.
• Edge banding and adhesives: PVC or ABS edge banding, PVA and hot-melt adhesives — approximately 0.5 kg.
• Packaging: Cardboard carton, expanded polystyrene corner protectors, polyethylene wrap — approximately 2.5 kg (allocated per unit).

Engineered wood panels (MDF, particleboard) are assumed as the default because they dominate global production volumes for flat-pack and commercial office furniture. Solid hardwood furniture generally has comparable or slightly lower embodied carbon per kg due to lower processing intensity but can be heavier per unit.

Manufacturing Geography

The default manufacturing region is China and Southeast Asia (primarily Vietnam), which collectively account for the majority of global furniture exports.

• Grid intensity (China): 565 gCO2e/kWh (IEA Emissions Factors 2024). China is the world’s largest furniture producer and exporter. The grid remains coal-heavy but is declining, forecast to reach approximately 505 gCO2e/kWh by 2026.
• Grid intensity (Vietnam): Approximately 690 gCO2e/kWh (IEA 2024 estimate). Vietnam has rapidly grown as a furniture export hub, particularly for wood products destined for North American and European markets.
• Grid intensity (Malaysia): Approximately 580 gCO2e/kWh. Malaysia is a significant rubberwood and tropical hardwood furniture producer.
• Rationale: CNC machining, panel cutting, sanding, and spray finishing are the most electricity-intensive manufacturing steps. Spray booth ventilation and drying ovens are significant consumers of both electricity and thermal energy. Factory-level energy use is dominated by the finishing stage, which can account for more than 50% of manufacturing-phase emissions.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China (default)	~565 gCO2e/kWh	80 kgCO2e	Baseline
Vietnam	~690 gCO2e/kWh	85 kgCO2e	+6%
EU (Poland, Italy)	~350 gCO2e/kWh	68 kgCO2e	-15%
USA / Canada	~390 gCO2e/kWh	70 kgCO2e	-12%
Scandinavia (Sweden, Finland)	~50 gCO2e/kWh	58 kgCO2e	-28%

Note: Scope 2 (factory electricity) represents approximately 22% of the total footprint. Grid intensity variation has a significant effect on the manufacturing phase but a moderate effect on the total score because Scope 3 upstream emissions (board production, resin manufacturing, hardware production) dominate. Scandinavian producers benefit from near-zero-carbon grids and access to sustainably managed boreal forests with short transport distances.

Provenance Override Guidance

A supplier or brand may override the default CCI score by submitting:

1. Environmental Product Declaration (EPD) or Product Carbon Footprint (PCF) certified by an accredited third party per ISO 14025, ISO 14067, or EN 15804 (for construction products including furniture).
2. Wood sourcing data specifying timber species, origin country, and certification status (FSC, PEFC). Certified sustainably managed forests ensure carbon stock replenishment and may qualify for biogenic carbon accounting credits under certain methodologies.
3. Panel supplier data specifying board type (MDF, particleboard, plywood, solid wood), resin system (urea-formaldehyde, PMDI), and recycled content percentage. Panels with high recycled wood content typically have lower upstream emissions.
4. Factory energy data including electricity source (grid mix, on-site solar, renewable energy certificates), fuel type for thermal processes (natural gas, biomass, coal), and total energy consumption per unit produced.
5. Finishing process data specifying coating type (water-based vs. solvent-based lacquer, UV-cured, powder coat), number of coating layers, and VOC emissions. Water-based and UV-cured finishes generally have 20-40% lower process emissions than solvent-based systems.

Methodology Notes

• CCI score of 80 kgCO2e represents a mid-range estimate for a medium wood desk manufactured in China. Coggin SOS reports 91-120 kgCO2e for office desks and workstations. MSR Design reports approximately 35 kgCO2e for a basic rectangular desk (likely lighter-weight) and 228 kgCO2e for a large 6-person bench desk. The score of 80 kgCO2e reflects a typical single-user desk with drawers or storage, manufactured with engineered wood panels in a coal-heavy grid region.
• Per-kg intensity of 2.3 kgCO2e/kg is calculated from the 80 kgCO2e total for an approximately 35 kg desk. This is consistent with engineered wood panel products where board production (including resin, pressing, and sanding) adds significantly to the raw timber baseline of approximately 0.3 kgCO2e/kg.
• Scope breakdown: Scope 3 dominates at 70% (56 kgCO2e), encompassing upstream raw material extraction, board and panel manufacturing at supplier facilities, hardware production, adhesive and coating chemical manufacturing, and packaging. Scope 2 (factory electricity for machining, sanding, finishing, and assembly) is 22.5% (18 kgCO2e). Scope 1 (direct emissions from on-site natural gas or LPG combustion for drying kilns, spray booth heating, and curing ovens) is 7.5% (6 kgCO2e).
• Functional unit: One medium wood desk or table (~35 kg), cradle-to-gate, including raw material extraction, panel or timber production, machining, finishing, assembly, and packaging. The gate is the finished packaged product ready for distribution.
• Biogenic carbon: Biogenic carbon stored in the wood product is excluded from the CCI score following the convention of most product-level LCA frameworks. Sustainably sourced timber stores atmospheric CO2, but this is typically released at end-of-life through decay or incineration. Biogenic carbon accounting may be included in future methodology versions.
• Use-phase emissions: Excluded. Wood furniture generally has negligible use-phase energy consumption.
• End-of-life: No credit or debit is included for end-of-life. Wood furniture may be landfilled (generating methane), incinerated (releasing stored carbon), or reused/refurbished. Refurbishment can reduce lifecycle emissions by 78-92% compared to new manufacture.
• Data gaps: Surface finishing emissions vary widely depending on coating system and factory ventilation/curing equipment. The score uses a conservative estimate aligned with solvent-based lacquer systems common in Asian manufacturing. Water-based or UV-cured systems would reduce the finishing hotspot by 20-40%.