Kayco Box Knowledge Base
Box Structure
Corrugated fiberboard is made using combined board which combines two main components: the linerboard and the medium. Linerboard is the flat facing or “liner” that adheres to the medium. The medium is the corrugated or fluted paper glued between the linerboard facings.
Fluting & Board Types
The fluted medium provides the board its structural integrity and comes in a variety of different sized based on intended use:
A-Flute was the original flute profile for corrugated board. It has about 33 flutes per foot.
B-Flute was then developed for canned goods and has about 47 flutes per foot.
C-Flute was developed as an all-purpose flute and has seen widespread usage. It has about 39 flutes per foot.
E-Flute the next flute to be developed, it has about 90 flutes per foot.
F-Flute was developed for small folding cartons. It has about 125 flutes per foot.
Board types can also be combined to provide added thickness, strength and durability to a given package or box. Single, Double and Triple Wall options are commonly used. Different flute types can also be combined to provide different compression and cushioning strength.
Singleface:
One corrugated medium is glued to one flat sheet of linerboard.
Singlewall:
The corrugated medium is glued between two sheets of linerboard. Also known as doubleface.
Doublewall:
Three Sheets of linerboard with two mediums in between.
Triplewall:
Four sheets of linerboard with three mediums in between.
Box Dimensions
Box dimensions are given in the sequence of Length x Width x Depth. Providing accurate box dimensions help expedite the quoting process and ensure proper fitment of the product being shipped or stored.
When measuring, it’s important to specify whether the dimensions are interior dimension or exterior dimension measurements. Interior dimensions are most useful for product fitment, where outside dimensions pertain to palletizing.
End Loading
Top Loading
Five Panel Folder and Wrap-Around
Box Styles
There are a variety of different box styles and constructions to fit any number of jobs and budgets. Many of these box styles are standardized and can be identified by their name, acronym or international code number. We’ve included some of the commonly used box styles for reference:
0201
Regular Slotted Container (RSC)
0301
Full Telescope Design Style Container (FTD)
0325
Interlocking Double Cover Container (IC)
0415
One Piece Folder (OPF) with Dust Flaps
0427
Roll End Tray with Locking Cover
0711
Pre-glued Auto Bottom with RSC Top Flaps