C-Flute Corrugated — The Original Shipping Box Profile for Robust Product Protection
C-flute (4mm) is the original and most widely used corrugated profile globally — the standard for regular slotted cartons and robust product shipping.
Why Choose C-Flute Corrugated
About C-Flute Corrugated
C-flute corrugated (4mm thickness) is the most widely produced corrugated profile globally and the original specification for the standard shipping box — the regular slotted carton (RSC) that moves product through supply chains worldwide. C-flute provides excellent cushioning, good flat-crush resistance, and strong top-to-bottom compression strength for stacking loaded boxes in warehouse and transit environments. For products requiring robust shipping protection or heavy contents, C-flute is the appropriate specification.
Quick Specs
- Minimum Order
- 100 units
- Production Time
- 2-3 weeks
- Free Shipping
- Yes
- Eco-Friendly
- Yes
Thickness Options
Best For
Affordable sample kits available
C-Flute Corrugated is Best For
Available Box Styles
C-Flute Corrugated works great with these box styles.
Tuck End Boxes
The most versatile retail box format in Canadian packaging. Tuck end boxes fold flat for storage, assemble in seconds, and print beautifully across every product category from supplements to cosmetics to food.
Magnetic Closure Boxes
Premium magnetic closure boxes for Canadian luxury brands, gift retailers, and corporate gifting programs. The satisfying click of a magnetic close communicates quality before the product is seen.
Sleeve Boxes
Two-component sleeve boxes for Canadian brands seeking premium presentation without full rigid box pricing. A printed sleeve over an inner tray creates visual impact and tactile quality at a competitive cost.
Pillow Boxes
Die-cut pillow boxes for Canadian gift brands, jewellers, and specialty retailers. The curved sides and open-end construction create visual distinction and gift appeal that standard rectangular boxes cannot achieve.
Gable Boxes
Gable boxes with integrated handles for Canadian food service, gift, and event brands. The triangular roofline and built-in handle create a distinctive carry box that communicates gift quality at every food service and retail interaction.
Two-Piece Boxes
Lid-and-base two-piece boxes for Canadian premium brands, jewellers, and gift retailers. The separate lid creates a deliberate reveal moment that communicates quality through the physical act of opening.
Explore Other Materials
Browse our other packaging materials.
Cardboard
EcoGeneral-purpose paperboard the foundation of folding carton packaging — versatile, printable, cost-effective, and available in a wide range of weights and coatings.
Corrugated
EcoCorrugated paperboard with a fluted middle layer between flat liner sheets — the standard material for shipping boxes, mailer packaging, and structural display applications.
Rigid Board
Thick, non-bending greyboard or chipboard wrapped in printed or specialty paper — the material of premium rigid set-up boxes for luxury packaging.
Kraft Paper
EcoUnbleached brown paper and board made from the kraft process — strong, natural-looking, and the signature material of sustainable and artisan packaging.
White Cardstock
Bright white coated or uncoated cardstock providing the ideal substrate for high-fidelity colour reproduction and the full range of premium finishing techniques.
Specialty Paper
EcoPremium specialty paper stocks including textured, coloured, metallised, and unique surface papers that add material distinction beyond standard white or kraft.
Available Finishes
Enhance your c-flute corrugated packaging with premium finishes.
C-Flute Corrugated FAQs
What is the difference between B-flute and C-flute?
C-flute (4mm) is thicker than B-flute (3mm) with better cushioning and compression strength. C-flute is the standard for heavier-duty shipping; B-flute is preferred for mailer boxes and lighter applications.
What weight products require C-flute?
C-flute is appropriate for products up to approximately 20-25kg and is the standard specification for most regular shipping cartons.
Can C-flute boxes be custom printed?
Yes. Custom CMYK printing on white-top C-flute creates branded shipping cartons. The 4mm profile has a slightly rougher surface than E-flute, so fine print details are less precise.
Is C-flute appropriate for retail packaging?
C-flute is generally too thick for premium retail presentation — its 4mm thickness makes it less appropriate for shelf packaging than E or B-flute. It is optimised for logistics performance rather than retail aesthetics.
Ready to Order C-Flute Corrugated Packaging?
Get a free quote with competitive pricing, free shipping, and 2-3 week turnaround.