What Is SBS Board?

Key Takeaways

  • SBS stands for solid bleached sulphate: a bright white virgin paperboard made from bleached chemical pulp, used where print quality and a clean white surface matter.
  • SBS caliper is specified in points, where one point equals one thousandth of an inch, so 18 pt board is 0.018 in thick, about 0.46 mm.
  • C1S means coated one side and is the usual retail carton choice. C2S is coated both sides and is used when the inside of the carton is seen or printed.
  • SBS is white all the way through, so a cut edge stays white. Recycled boards typically show a grey or brown core at the edge, which is the quickest way to tell them apart.

SBS is solid bleached sulphate, a paperboard made from bleached virgin chemical pulp. It is the bright white, consistent board behind most premium folding cartons: cosmetics, confectionery, pharmaceuticals and anything where the printed surface is doing the selling. If a supplier has quoted you SBS and you want to know what you are buying, this is it.

How SBS is specified

Two numbers describe most of it.

  • Caliper, measured in points. One point is one thousandth of an inch, so 16 pt is 0.016 in, roughly 0.41 mm. Lighter calipers suit small, light cartons. Heavier calipers hold a large panel straight and feel substantial in the hand.
  • Coating, described as C1S or C2S. C1S is coated on one side, which is the printed face, and is the standard retail carton specification. C2S is coated on both sides, used when the interior is visible on opening or when you want to print inside the carton.

Those two numbers plus your dimensions are usually enough for a supplier to quote.

What makes SBS different from the alternatives

BoardAppearanceTypically used for
SBS, solid bleached sulphateWhite through the full thickness, so cut edges stay whitePremium retail cartons, cosmetics, confectionery, small pharmaceutical cartons
CCNB or recycled boardsWhite or clay coated printing face over a grey or brown recycled coreCost sensitive retail cartons where the edge is not a feature
Kraft or unbleached boardBrown through, natural fibre lookBrands that want a natural aesthetic, often with one or two colour print
E flute corrugatedA fluted layer between liners, about 1/16 inch thickRetail boxes that also have to survive shipping on their own

When SBS earns its cost, and when it does not

SBS earns its cost when the box is the first impression: high coverage photography, fine reversed type, a white background that has to stay neutral, or a product where an off white carton would look tired next to competitors on a shelf. It earns it again when the cut edge is visible, since a grey core along a folded edge is the sort of detail people notice without being able to name.

It does not earn its cost on a plain shipper, on a box that lives inside another box, or on a design that is deliberately unbleached and natural. If your brand runs kraft, SBS gains you nothing. If your artwork is one colour on a brown background, the same applies.

Practical notes before you specify it

Ask about grain direction if the carton is tall and narrow, because board folds cleanly along the grain and roughly across it. Ask about coating choice if the carton will be handled with wet hands or sit in a humid aisle. And check the proof rather than your screen for whiteness expectations, since paper white and screen white are different things.

Ordering, minimum and turnaround

Minimum order is 100 boxes. Pricing starts from about $0.48 per unit at bulk volumes and is confirmed on your written quote, with caliper, coating, colour count and finishing all reflected there. The die, the plates, design support, US shipping and a digital proof before anything prints are included.

Turnaround is quoted per product in three lanes: rush (expedited production plus air freight, a premium of about 7 to 25% depending on the job), standard by air, and cost saver by sea. The floor is from about 7 business days, plus 2 to 5 days for delivery, and specialty imported items can run up to about 12 weeks. We produce in West Chicago, US, and Guangzhou, China.

Tell us the box you are making and what it has to look like, and we will recommend a caliper and a coating on the written quote at /quote/. If you are choosing between board families rather than calipers, what is a folding carton sets SBS in context, and folding boxes is where to order the format.

Get a Custom Quote

Free die and plates, free design support, free US shipping. Minimums from 100 boxes.