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Corrugated cardboard or corrugated paper-board is among the most popular packaging solutions among brands and industries. It is manufactured using a high-tech construction mechanism to ensure that the material can carry a wide range of weights despite a thin design.

If you are looking for corrugated cardboard and other packaging solutions like die cut boxes or single face rolls in Singapore, you can trust Singapore Cartons. Our high-quality corrugated cardboard protects against moisture while providing sustainable packaging solutions. Furthermore, corrugated paper-board is extremely customizable and we offer it at cost-effective prices.




It is fascinating how such a thin-looking corrugated carton can provide a stable cushion to items even during long-distance transportation, handling and shipping. Sturdy items can be moved safely in a single wrap while things as fragile as glass etc can be moved safely by simply adding a couple of layers to enhance thickness. In addition, it also protects items from moisture exposure.



Corrugated cardboards are extremely customizable. Not only can their thickness be adjusted to make it a perfect fit for any item but it can also be customized to become flame resistant and waterproof. It comes in various sizes and can be very easily folded into different shapes to cater to any industry. In addition, there are various printing options for this packaging material.



Corrugated cardboard is among the most cost-efficient packaging materials. Apart from that, it is reusable and made out of sustainable materials.


Singapore Cartons was established in 1976 and we have a proven track record of more than 40 years in the packaging industry. We have a rich clientele of trusted brands, including DBS Bank, Keppel Logistics, and Singapore Technologies Logistics, among others. You can trust for the best corrugated paper-board, paper storage boxes, cardboard partitions and other packaging solutions.

Call us at 6861 7690 or email us for enquiries now!

Flutes come in several common sizes or profiles:

  • 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. It has about 47 flutes per foot.
  • C-flute was next developed as an all-purpose flute and it has about 39 flutes per foot.
  • E-flute was the next successful flute profile and it has about 90 flutes per foot.
  • F-flute was developed for small folding carton-type boxes. It has about 125 flutes per foot.

In addition to these five most common profiles, new flute profile – both larger and smaller than those listed here – have been created for more specialized boards. Generally, larger flute profiles deliver greater vertical compression strength and cushioning. Smaller flute profiles provide enhanced structural and graphic capabilites for primary (retail) packaging. There is also a good deal of variance in the range of flute sizes based upon the container characteristics that are desired for each application.

Different flute profiles can be combined in one piece of combined board. For instance, in a triplewall board, one layer of medium might be A-flute while the other two layers may be C-flute. Mixing flute profiles in this way allows designers to manipulate the compression strength, cushioning strength and the total thickness of the combined board.

In doublewall or triplewall, varied flute profiles provide advantages over flutes of the same size that are perfectly aligned.

The following illustrations demonstrate four types of combined board.

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.

Dobulewall: Three sheets of linerboard with two mediums between.

Triplewall: Four sheets of linerboard with three mediums in between.


1) Tests to determine compliance with the edge crush requirements of Table B must be conducted in accordance with Technical Association of the Pulp and Paper Industry (TAPPI), Offical Test Method T-811.

2) A minimum of six tests must be made and only one test is permitted to fall below the specified minimum value, and that one test cannot fall below the specified minimum value by more than 10 percent. Board failing to pass the foregoing will be accepted if in a retest.


Table A
Maximum Weight of Box and Contents (lbs) Maximum Outside Dimensions, Length, Width, and Depth Added (inches) Minimum Bursting Test, Singlewall, Doublewall or Minimum Puncture Test, Triplewall Board (Inch oz, per inch of tear) Minimum Combined Weight of Facings, including Center Facing(s) of Doublewall and Triplewall Board (lbs. per 1,000 sq.ft)
Singlewall Corrugated Fiberboard Boxes
20 40 125 52
35 50 150 66
50 60 175 75
65 75 200 84
80 85 250 111
95 95 275 138
120 105 350 180
Doublewall Corrugated Fiberboard Boxes
80 85 200 92
100 95 275 110
120 105 350 126
140 110 400 180
160 115 500 222
180 120 600 270
Triplewall Corrugated Fiberboard Boxes
240 110 700 168
260 115 900 222
280 120 1100 264
300 215 1300 360
Table B
Maximum Weight of Box and Contents (lbs) Maximum Outside Dimensions, Lenght, Width and Depth Added (inches) Minimum Edge Crush Test (ECT) (lbs. per in width)
Singlewall Corrugated Fiberboard Boxes
20 40 23
35 50 26
50 60 29
65 75 32
80 85 40
95 95 44
120 105 55
Doublewall Corrugated Fiberboard Boxes
80 85 42
100 95 48
120 105 51
140 110 61
160 115 71
180 120 82
Triplewall Corrugated Fiberboard Boxes
240 110 67
260 115 80
280 120 90
300 125 112

Consisting of 24 tests, not more than four tests fall below the specified minimum value and none of those tests falls below the specified minimum value by more than 10 percent.


Singlewall full telescopic style boxes may have gross weight and united inches increased to those of doublewall boxes as shown in Table A and B. For doublewall and triplewall full telescopic style boxes, allowable gross weights and united inches of Table A or B may be increased by 10 percent. Special packages are not affected by this provision.


If the weight of box and contents is less than the maximum weights shown in table A and B, the maximum outside dimensions for the box may be increased half percentage that actual weight is less than the maximum weight allowed by the Table. For boxes made to comply with this Note the words “Size Extension Formula” must be printed below certicate required in Item 222-1(a).

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