Board Grades & Strength Ratings
ECT Ratings • Material Specifications
The right board grade ensures optimal protection and cost efficiency

Understanding Board Grades
Board grade determines the strength and durability of your partitions. We source materials from certified quality mills and help you select the optimal grade based on your product weight, shipping conditions, and budget.
ECT-32
Standard strength for lightweight products
Edge Crush Test: 32 lbs/inch
Bursting Strength: 200 lbs/sq.in
Most economical option
Best For:
- • Lightweight products (under 20 lbs per box)
- • Short-distance shipping
- • Non-fragile items
- • Cost-sensitive applications
ECT-44
PopularStandard for most commercial applications
Edge Crush Test: 44 lbs/inch
Bursting Strength: 275 lbs/sq.in
Balanced strength & cost
Best For:
- • Medium-weight products (20-50 lbs)
- • General shipping needs
- • Most food & beverage products
- • Standard retail packaging
ECT-48+
Heavy-duty strength for demanding applications
Edge Crush Test: 48+ lbs/inch
Bursting Strength: 350+ lbs/sq.in
Maximum protection
Best For:
- • Heavy products (50+ lbs)
- • Long-distance shipping
- • Fragile or valuable items
- • International shipping
Additional Material Specifications
Liner Options:
- • Kraft liner (natural brown)
- • White top liner for printing
- • Recycled content liners
- • Virgin fiber for food contact
Certifications Available:
- • Material certifications from mills
- • ECT test reports
- • Moisture content analysis
- • Compression test data
Quality Assurance
1
Certified Mills
All materials sourced from quality-certified manufacturers
2
100% Inspection
Every partition checked for quality standards
3
Testing Available
Drop tests, compression tests, transit simulation
Get Expert Material Recommendations
We'll help you select the optimal board grade