Natural(Brown) Kraft Linerboard
Natural Cardboard, made from 80% virgin wood fiber, is 100% recyclable and biodegradable, making it an eco-friendly choice for an organic look.
Why use it
- Recyclable and biodegradable
- Available in different flutes
- Organic texture
- High recycled content (up to 100%)
- The most economical pick for corrugated
Why not use it
- When compared to white boards, the natural kraft color can make your design appear less vibrant.
- The color of natural kraft varies depending on the paper mill
Best Used With
Overview
Natural cardboard is an excellent option to consider for those who are looking for an environmentally friendly appearance. It is made up of up to 100% recycled content, making it completely recyclable and biodegradable. Natural kraft board is also the most commonly used material for shipping due to its exceptional properties of tear-resistance and anti-bursting. However, it is important to note that colors may appear slightly muted when printed on the brown material. If your brand requires bright and vibrant hues, mottled white, bleached white, or Kemi options may be more suitable for your needs, despite the slightly higher cost.
Single Face
Single Wall
Double Wall
Types of Corrugated Cardboard
Standard Corrugated Flutes
Flute Designation | Flute Thickness (in) | Flutes Per Meter | Flute Thickness (mm) | Flutes Per Foot |
|---|---|---|---|---|
A flute | 0.1875 | 108 ± 10 | 4.8 | 33 ± 3 |
B flute | 0.125 | 108 ± 10 | 3.2 | 47 ± 3 |
C flute | 0.15625 | 128 ± 10 | 4 | 39 ± 3 |
E flute | 0.0625 | 295 ± 13 | 1.6 | 90 ± 4 |
F flute | 0.03125 | 420 ± 13 | 0.8 | 125 ± 4 |
Corrugated Board Performance
Triple Wall
Max Weight Of Box And Contents
(lbs) | Min. Combined Weight Of Facings
(lbs/m Sq Ft) | Max Outside Dimensions
(L + W + D In) | Min. Burst Strength
(lbs/sq In) | Min. Edge Crust Test
(lbs/in) |
|---|---|---|---|---|
240 lbs | 168 lbs/m sq ft | 111 in | 700 lbs/sq in | 67 lbs/in |
260 lbs | 222 lbs/m sq ft | 115 in | 900 lbs/sq in | 80 lbs/in |
280 lbs | 264 lbs/m sq ft | 120 in | 1100 lbs/sq in | 90 lbs/in |
300 lbs | 360 lbs/m sq ft | 125 in | 1300 lbs/sq in | 112 lbs/in |
Single Wall
Max Weight Of Box And Contents
(lbs) | Min. Combined Weight Of Facings
(lbs/m Sq Ft) | Max Outside Dimensions
(L + W + D In) | Min. Burst Strength
(lbs/sq In) | Min. Edge Crust Test
(lbs/in) |
|---|---|---|---|---|
20 lbs | 52 lbs/m sq ft | 40 in | 125 lbs/sq in | 23 lbs/in |
35 lbs | 66 lbs/m sq ft | 50 in | 150 lbs/sq in | 26 lbs/in |
50 lbs | 75 lbs/m sq ft | 60 in | 175 lbs/sq in | 29 lbs/in |
65 lbs | 84 lbs/m sq ft | 75 in | 200 lbs/sq in | 32 lbs/in |
80 lbs | 111 lbs/m sq ft | 85 in | 250 lbs/sq in | 40 lbs/in |
95 lbs | 138 lbs/m sq ft | 95 in | 275 lbs/sq in | 44 lbs/in |
120 lbs | 180 lbs/m sq ft | 105 in | 350 lbs/sq in | 55 lbs/in |
Double Wall
Max Weight Of Box And Contents
(lbs) | Min. Combined Weight Of Facings
(lbs/m Sq Ft) | Max Outside Dimensions
(L + W + D In) | Min. Burst Strength
(lbs/sq In) | Min. Edge Crust Test
(lbs/in) |
|---|---|---|---|---|
80 lbs | 92 lbs/m sq ft | 85 in | 200 lbs/sq in | 42 lbs/in |
100 lbs | 110 lbs/m sq ft | 95 in | 275 lbs/sq in | 48 lbs/in |
120 lbs | 126 lbs/m sq ft | 105 in | 350 lbs/sq in | 51 lbs/in |
140 lbs | 180 lbs/m sq ft | 110 in | 400 lbs/sq in | 61 lbs/in |
160 lbs | 222 lbs/m sq ft | 115 in | 500 lbs/sq in | 71 lbs/in |
180 lbs | 270 lbs/m sq ft | 120 in | 600 lbs/sq in | 82 lbs/in |
E Flute
Max Weight Of Box And Contents
(lbs) | Min. Combined Weight Of Facings
(lbs/m Sq Ft) | Max Outside Dimensions
(L + W + D In) | Min. Burst Strength
(lbs/sq In) | Min. Edge Crust Test
(lbs/in) |
|---|---|---|---|---|
35 lbs | 66 lbs/m sq ft | 50 in | 150 lbs/sq in | 26 lbs/in |
65 lbs | 84 lbs/m sq ft | 75 in | 200 lbs/sq in | 32 lbs/in |
Not sure which material or option to choose?
No worries! We understand that it can be challenging to find the perfect custom packaging. That's why our dedicated team of packaging experts is here to support you.
- Expert advice on choosing the best material and structure for your unique needs.
- Professional guidance from engineers and designers on how to build the optimal packaging experience.
- Full-cycle project management and proactive updates regarding any issues that may arise.