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Free dieline template

Shipping Box Dieline (RSC)

An RSC dieline is the flat blank of a regular slotted container (FEFCO 0201), the standard brown shipping box: four side panels, four top flaps, four bottom flaps and one glue joint. Enter your inside length, width and depth below to download it as a layered SVG.

Get a Production QuoteAll Dieline Templates

Last updated November 12, 2026

Instant Vector Templates · No Account Needed

Download Free Print-Ready Dieline Templates

Need a blank vector template for Adobe Illustrator or Canva right now? Select a standard box style below to download a print-ready SVG with cut lines, crease rules, and 3mm bleed in 1 click.

Select Standard Size:

Or enter your size (inches):

Box Style:Regular Slotted Container (RSC)
Recommended Stock:32 ECT / 44 ECT Kraft Corrugated
Bleed & Safe Zone:3mm Bleed / 5mm Safe Margin
File Compatibility:Illustrator, CorelDraw, Figma, CAD
Order This Box SizeCustom Size in AI
Cut Line (Solid) Crease (Fold) 3mm Bleed
Vector SVG Preview
LENGTH: 12″ × DEPTH: 8″ CUBIT PACKAGING — REGULAR SLOTTED CONTAINER RSC (12″ × 9″ × 8″) 32 ECT Corrugated Master Shipper · Manufacturing & Freight at cubitpackaging.com/rfq
Standard Illustrator Layer Hierarchy Included
Wholesale custom printing from 100 units

How an RSC blank is laid out

All four flaps on each end are the same length, and the two outer flaps meet in the middle when the box is closed. That makes the blank easy to size from three numbers.

  • Blank length: two lengths plus two widths, plus the glue joint.
  • Blank width: the depth plus one full width (half a width of flap on the top and on the bottom).
  • Scores: three vertical scores between panels and two horizontal scores where the flaps fold.
  • Glue joint (manufacturer's joint): the tab that closes the box into a tube.

Choosing board strength

The dieline does not change with board grade, but the grade decides what the box can carry. Single-wall 32 ECT board is the common choice for everyday parcels, with heavier grades and double-wall board for heavier or stacked loads. The box-strength guide explains how to match board to product weight.

Printing on shipping boxes

Shipping boxes are usually printed in one to three flat colours directly on the board, which suits logos, handling marks and simple patterns. Full-colour photographic print is possible with digital print or a printed liner. Keep artwork 10 mm away from scores and the glue joint, and avoid fine detail across the flap seam.

The download is a starter template for laying out artwork. When you order, Cubit's structural team confirms the production dieline for your exact size and board before anything is printed.

Frequently asked questions

What does RSC stand for?

Regular slotted container. It is the most common corrugated shipping box, with four equal-length flaps on the top and bottom. Its international code is FEFCO 0201.

How do I calculate the flat size of an RSC box?

Blank length is two lengths plus two widths plus the glue joint. Blank width is the depth plus one width. The template below does this from the inside size you enter.

Are shipping box sizes inside or outside dimensions?

Inside dimensions, written length × width × depth. Outside size is larger by twice the board thickness in each direction, which matters for pallet and carrier limits.

What ECT rating do I need?

It depends on product weight and stacking. Single-wall 32 ECT is the common standard for everyday parcels; heavier loads need a higher rating or double-wall board. See the box-strength guide for a weight-by-weight breakdown.

Related

  • Custom shipping boxes
  • Box-strength (ECT) guide
  • Box size finder
  • AI dieline generator