Flat Multiwall

Multiwall sack producers coast-to-coast rely on KapStone as a leading supplier of flat multiwall kraft paper. Strong and durable, our flat multiwall sets the industry standard for quality and consistency and is manufactured with a focus on consistent profiles and uniform runnability. Customers rely on its trusted performance as it is converted into packaging that protects, transports, and sells an extensive variety of consumer and industrial products.

Product Line

  • Flat Multiwall

A trusted performer in traditional 3- and 4-ply multiwall packaging, converters and end-users benefit from the consistent quality of our flat multiwall paper. Converters depend on the consistent sheet performance as they combine it with other grades during the converting process and brand owners have confidence that their finished packaging will deliver the necessary shelf performance. When used as the outer-ply in a multiwall sack, the sheet’s lint free surface provides for excellent printing with uniform ink absorption - ideal for consistent shelf appeal and brand recognition.

Product Solutions:

  • Uniform Freight Classification Rule 40 compliant
  • Unbleached, natural kraft paper
  • USFDA certified for direct food contact
  • Coast-to-coast manufacturing and supply
  • Recyclable and renewable
  • SFI® and FSC® Certified depending on manufacturing location

Product Line

  • Food Products
  • Agricultural & Pet Care
  • Industrial & Consumer
Suitable for use in both the interior and exterior of multiwall sacks, our flat multiwall kraft paper is US FDA compliant for direct food contact.
  • Milling & Flour
  • Sugar
  • Rice & Grains
  • Ingredients
  • Dairy
Flat Multiwall Flour
Providing strength and puncture resistance all the way to the retailer, our flat multiwall paper is UFC Rule 40 compliant and a trusted performer in both traditional and laminated multiwall shipping sacks.
  • Pet Food
  • Absorbents & Pet Litter
  • Livestock & Poultry Feed
  • Seed
Flat Multiwall Pet Food
A sustainable and dependable packaging choice, natural kraft multiwall shipping sacks provide an efficient solution that holds up in demanding environments throughout the supply chain, at the retailer and on the jobsite.
  • Building Materials
  • Cement & Mortar
  • Chemicals
  • Charcoal & Briquette
Flat Multiwall Charcoal


Flat Multiwall - Product Guide 190.97 kB KB