A value sheet you can depend on.
Protect your products by using FlatStack sheets as:
- Top covers on pallets
- Liners on pallets
- Tier sheets between product layers to improve pallet cube integrity
Benefits:
- Engineered for consistent performance on automated palletizers
- Designed specifically for this application
- In-house design and testing capabilities offered
Compared to corrugated sheet:
- Minimum 5% reduction in weight
- Minimum 15% material cost savings
- Lower freight costs—over two times more sheets shipped per truckload
- Store five times the amount of sheets per unit of storage

FlatStack® Tier Sheets
Sheets per Pallet | Pallets per Truckload | Sheets per Truckload | |
Corrugate C-Flute 150pt | 320 | 56 | 17,920 |
Corrugate B-Flute 120pt | 400 | 56 | 22,400 |
FlatStack 24pt | 2,000 | 21 | 42,000 |
FlatStack 30pt | 1,600 | 21 | 33,600 |
Assuming 40"W x 48"L x 48"H

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Features
Calipers: 17-45pt
Design flexibility: square, round or custom corners and/or sizes
Custom die-cut designs available -
Sustainability
Made with 100% recycled fiber
Minimum 85% post-consumer fibers
Acceptable in commercial OCC recycling programs
FSC certification is available (see below)
See the difference.
One pallet of FlatStack tier sheets yields 266 pallet cubes; one pallet of corrugated tier sheets yields only 53 pallet cubes.

FlatStack Ultralight®: Sonoco's Lightweight Value Offering
As a value-priced alternative to lightweight gypsum and paperboard sheets, FlatStack Ultralight® delivers exceptional performance, consistency in quality, and security of supply. When you use FlatStack Ultralight, you’ll know that you can get the quality tier sheet you need, when you need it – for a value price.
Benefits
- Engineered for consistent performance on automated palletizers
- Engineered and manufactured specifically for this application
- Technical support for implementation, including process modeling
- Recyclable
Caliper |
Sheets per Pallet |
Sheets per Truckload |
17pt |
2,800 |
61,600 |
18pt |
2,700 |
59,400 |
Assuming 40"W x 48"L sheet size, 22 pallets per truckload.

Locations across North America ensure quick and efficient delivery.

Certifications
All but two of our 23 global paperboard mills use 100% recycled fibers in their production. Sonoco is committed to responsible use of natural resources through responsible sourcing, recycling, and use of recycled fiber in our paper-based packaging. Sonoco's mills throughout Europe, the U.S., Canada, Brazil, China, and Mexico (Atizapan), are certified to one or more fiber certification programs. These are: the Forest Stewardship Council® (FSC®), Sustainable Forest Initiative® (SFI®) and the Program for the Endorsement of Forest Certification® (PEFC®) Chain of Custody and Due Diligence System Standards.
FSC-C011144
SFI-00112
PEFC/29-31-248
