What is a one-piece box?

A one-piece box is cut from a single sheet and folds into a finished box with a self-locking bottom, usually without glue or tape. It ships flat, assembles in seconds, and the lid or flap is part of the same piece.

Is there a minimum order for custom one-piece boxes?

No. TBPB has no minimum order, so you can order a single one-piece box to test the fold and fit, or place a large run. Because the dieline is drawn to your size, a small first order carries the same design as a bigger one.

How much weight can a one-piece box hold?

It depends on the board and the size, but light to moderate loads are the sweet spot. Heavy or dense contents can push open the locking base. Tell us the weight and we will recommend a board or suggest a sturdier style if needed.

Can I print on the inside of the box?

Yes. Since the box is made from one sheet, the inside surface can carry artwork too, such as a color, pattern or short message. We keep key text off the fold lines and locking tabs so it stays readable.

How do I size a one-piece box?

Measure the product length, width and height, then add about 1/8 inch per side, plus extra height for tissue, a card or an insert. Send the numbers and the weight, and we draw the dieline and confirm the fit.

Do one-piece boxes ship flat?

Yes. They arrive scored and flat, then fold into shape by hand. That saves storage space and freight volume compared with pre-assembled boxes, which suits small shops packing orders at a kitchen table or in a small stockroom.

Custom One-Piece Boxes, No Minimum Order

A custom one-piece box is a box cut from a single sheet that ships flat and folds into shape with a self-locking bottom, no glue and no separate parts. TBPB makes them with no minimum order, and our price-beat guarantee applies if you bring a written quote for the same specs.

How a one-piece box goes together

Everything is in the dieline. The sheet has score lines for the walls and panels that interlock at the base, so you lift the sides, press the bottom and it clicks into place. The lid or tuck flap is part of the same sheet. Because nothing is glued at the factory, the boxes ship flat and take little storage space, and your team can fold a box in a few seconds. That is the practical appeal for a business packing a few hundred orders a week: nobody has to tape a bottom, and nobody has to hunt for parts.

What it is good for and where it struggles

One-piece boxes suit subscription kits, apparel, candles, cosmetics sets, food to go, hardware, and anything that is light to moderate in weight and fits in a rectangle. They struggle when the contents are heavy or dense, because the locked bottom relies on tabs and fibre, not glue. A bottle of liquid or a stack of books can push the base open or deform it. When weight is the issue, a heavier board or corrugated is the better fit. If you need a taller, sturdier box, tell us the weight and we will say honestly whether a one-piece build can handle it.

Sizing and board

Measure your product in length, width and height and add about 1/8 inch per side, then allow a little extra height if you plan to include tissue, a card or an insert. Board choice depends on what the box has to do. Paperboard in the 16 to 24 pt class suits lighter retail items, and a corrugated board in E-flute or B-flute suits shipping. Tell us how the box travels and we choose to match. A larger box needs a stiffer board, so do not use the same board for a small cosmetic carton and a large apparel box.

A final detail on the locking base: it holds best when the box is filled evenly. Pack heavy items in the center, not at one end, and avoid lifting a full box by a single flap. Those two habits make a bigger difference to how the box survives than most board upgrades do.

Construction: single sheet, self-locking bottom, ships flat
Board: folding carton paperboard or corrugated, chosen for the contents
Print: CMYK, Pantone match, with matte or gloss coating, and foil stamping or embossing on suitable artwork
Sizes: fully custom, drawn to your inside dimensions
Assembly: by hand in seconds, no tape or glue needed

Printing inside and out

Because the box is a single sheet, you can print the inside as well as the outside. A bold color or a short message printed inside the lid is a cheap way to make an unboxing feel designed. Keep important artwork away from fold lines and the locking tabs, because those panels crease and sometimes rub. Send your artwork on our dieline, or ask for the dieline first, so nothing important lands on a crease. Small shifts at the folds are normal in any folded box, so give logos a margin of safety.

When another style is the better choice

For retail pegs and hooks, our hang tab boxes do the job a one-piece box cannot. For simple lightweight cartons, tuck top boxes are quicker to fill. If the order ships by courier, use our mailer boxes. You can browse the group in the fold and assemble boxes category.

Next step: send your product dimensions and a quantity, even one, and TBPB draws the dieline and quotes it.

Frequently asked questions

What is a one-piece box?
A one-piece box is cut from a single sheet and folds into a finished box with a self-locking bottom, usually without glue or tape. It ships flat, assembles in seconds, and the lid or flap is part of the same piece.
Is there a minimum order for custom one-piece boxes?
No. TBPB has no minimum order, so you can order a single one-piece box to test the fold and fit, or place a large run. Because the dieline is drawn to your size, a small first order carries the same design as a bigger one.
How much weight can a one-piece box hold?
It depends on the board and the size, but light to moderate loads are the sweet spot. Heavy or dense contents can push open the locking base. Tell us the weight and we will recommend a board or suggest a sturdier style if needed.
Can I print on the inside of the box?
Yes. Since the box is made from one sheet, the inside surface can carry artwork too, such as a color, pattern or short message. We keep key text off the fold lines and locking tabs so it stays readable.
How do I size a one-piece box?
Measure the product length, width and height, then add about 1/8 inch per side, plus extra height for tissue, a card or an insert. Send the numbers and the weight, and we draw the dieline and confirm the fit.
Do one-piece boxes ship flat?
Yes. They arrive scored and flat, then fold into shape by hand. That saves storage space and freight volume compared with pre-assembled boxes, which suits small shops packing orders at a kitchen table or in a small stockroom.