Norway Spruce
Frequently asked questions
Can Norway Spruce be laser cut?
Yes: Norway Spruce can be laser cut. Adequate extraction/ventilation is required.
Can Norway Spruce be CNC machined?
Yes: Norway Spruce can be CNC machined.
Is Norway Spruce food safe?
Yes, Norway Spruce is food safe even in its raw state.
Physical properties
| Density | 400.0–500.0 kg/m³ |
|---|---|
| Janka hardness | 2500.0 N |
| Moisture absorption | Medium |
Laser processing
Conifer wood fumes with low resin content. Less pungent than pine. Extraction still mandatory to protect optics and respiratory tract.
CO₂: Excellent laser engraving: low resin content compared to pine, clean edges, uniform contrast. Easy cutting with 40W CO2 for thicknesses up to 6mm. One of the most predictable conifer woods for laser thanks to its homogeneous structure.
Diode: Excellent results with 10W+ diode laser for engraving and cutting up to 4mm. Low density requires less power compared to hardwoods.
Fiber: Not applicable.
CNC / milling processing
Excellent CNC machinability. Uniform structure and low density allow fast feed rates with clean finish. Watch for brittleness perpendicular to the grain: cross passes can cause chipping on exit edges. Up-cut spiral bits recommended.
Post-processing
Sanding: Sands easily. Grit 100 to 150 to 220. Straight grain allows a very uniform finish. Watch for knots which resist sanding.
Primer: Usually not necessary. Any resinous knots should be sealed with shellac before solvent-based finishes.
Gluing: Excellent gluing with PVA D2/D3. Absorbent surfaces: PVA sets quickly, limit open assembly time.
Seasoning: Ideal moisture content 8-10%. Already available kiln-dried in standard commercial channels.
Over time: Excellent indoor durability. Lightens over time due to light exposure. In lutherie it is prized for how it improves acoustically over the years (tonewood aging phenomenon).
Common defects
- Edge chipping perpendicular to the grain during CNC milling
- Localised resin stains at knots, visible through the finish
- Warping if exposed to humidity changes without protection
Safety
Recommended PPE: mask_p3, eye_protection
Spruce dust is a respiratory irritant. In lutherie and modeling it is the conifer wood par excellence - manage dust with extraction and P3 during sanding.
Availability and formats
Commercial formats: sawn boards, battens, tonewood boards for lutherie, spruce plywood
Related materials
Sources
- Wood Database — Norway Spruce (Picea abies)
- Lutherie Wood Resource — Spruce Tonewoods
Information on compatibility, processing parameters and safety is purely indicative. MakerSpecs accepts no liability for damage to persons or property arising from the use of this data. Always check the safety rules and the manufacturer's official manuals before carrying out any processing.