Open channel with a raised false floor Box Template Generator

Open channel with a raised false floor. A long open-ended trough whose floor is held clear of the base by two half-height legs, with the near wall doubled. Used to carry a product above the bottom of an outer case.

Checked against the plate. This blank has been compared side by side with the drawing in the FEFCO Code, 12th Edition, and matches. That is a statement about the drawing, not a guarantee — always cut and fold a sample before committing to a die.

What is Open channel with a raised false floor?

Open channel with a raised false floor is a carton insert or fitment. A long open-ended trough whose floor is held clear of the base by two half-height legs, with the near wall doubled. Used to carry a product above the bottom of an outer case.

Uses

Transit and e-commerce packing, where the box is handled by a carrier

Advantages

Cut from a single blank, so there is one tool and one part to stock

Disadvantages

No standard style suits every product; check the fit against a sample before committing to a tool

Typical industries

General distribution and warehousing

Recommended board grades

Folding boxboard or solid bleached board, typically 250–450 microns. Heavier board for larger cartons, lighter where the carton is filled by machine.

At a glance

Code	`F20.53`
Family	Folding carton (ECMA)
Also known as	F20.53.00.00, channel with raised floor
Blank size at this size	369 × 200 mm
Panels	7
Creases	6

Measured against the p.72 plate with scripts/plate-diff.py: score 1.000, MATCH, cut 1.000 found / 1.000 extra, crease 1.000 / 1.000. Panel run 8.96, 29.27, 8.96, 17.92, 29.85, 17.93, 17.61 against the plate's own A = 29.85 and B = 17.92 — B/2, A-2t, B/2, B, A, B, B-t. The two thickness allowances are what identify the panels: a floor drawn A-2t has to drop between the walls, and a wall drawn B-t has to lie against another one.

Get the dieline

The generator draws this style to whatever dimensions you enter and exports it as a 1:1 PDF, an SVG, or a DXF with the cut, crease and perforation lines on separate layers. Nothing to sign up for.

Open F20.53 in the generator

Other codes in this group

Browse every code, or read what the groups mean.

Every FEFCO code we build — all 244 of them, grouped.
FEFCO codes explained — what the four digits mean and what each group covers.
How to measure a box — inside, outside and crease-to-crease.
Flutes and calipers — why board thickness changes the blank.