I’ve noticed most discussions here focus on wooden boxes, which are great from a craftsmanship perspective. In my case, I’m currently working more with cardboard and rigid materials for box-style projects.
I’m interested in understanding how cutting accuracy, edge finishing, and structural strength compare when working with these materials instead of wood. Are there specific tooling considerations or machine settings that work better for cardboard or rigid board?
Just looking to learn from others who may have experimented with different non-wood materials for box construction.
I have had mixed results using a spinning end mill to cut corrugate. The edges aren’t very crisp.
I have just started using a Donek drag knife to cut stickers, and plan to also use it for corrugate. I recommend taking a look at that.
You can also get a corrugate “creasing wheel” for cnc routers. It’s essentially a little wheel that makes fold lines in the corrugate.
Just a note: I’ve chosen my words carefully and mention “corrugate" instead of cardboard, as the two are different, but often used interchangeably. I think the Donek drag knife would also be fantastic for cutting cardboard.
Corrugated board is definitely very abrasive, so blade life depends on a few key factors: blade material, thickness of the board, flute type, cutting speed, and pressure.
As a general estimate:
Standard steel utility blades: often around 1,000–3,000 linear inches (80–250 feet) before noticeable dulling.
High-quality or coated blades: can last 2–3× longer under the same conditions.
Industrial carbide blades: significantly longer, especially in high-volume production.
You’ll usually notice dulling first through:
Increased cutting resistance
Rough or fuzzy edges
Needing more pressure to complete the cut
If you tell me what type of knife or setup you’re using (hand utility knife, rotary cutter, CNC, die cutter, etc.), I can give a more specific estimate.
