Sleeve template
Set the dimensions. Check the folds. Make a small test box.
Flat panel guide
Assembly
- 1
Cut and score the four-panel band.
Flat panel guide
- 2
Dry-wrap the complete object and mark the intended front.
Folded assembly guide
- 3
Glue the seam tab while keeping both openings square.
Folded assembly guide
- 4
Let the seam settle, then check the object slides in and out.
Folded assembly guide
Measure the complete object
Object width and depth describe its cross-section, including covers, ribbons or other projections that must pass through the opening. Sleeve length is the distance along the object that the wrap covers. Per-side clearance is added to each side of the section, separately from sheet thickness.
For an object 60 × 20 mm, a 0.50 mm allowance per side gives a 61 × 21 mm inside opening. With 0.30 mm stock, the example fold-line spans are 61.3 × 21.3 mm. Four panels and a 10 mm glue tab use 175.2 mm across the flat strip.
Plan the presentation face
Before gluing, wrap a plain trial around the object and mark the intended front. Put the join on the underside or another unobtrusive face if that position works with the panel sequence. Keep adhesive inside the tab rather than allowing a bead to protrude into the opening.
Score all long folds, form the band and check its cross-section before fixing the seam. A sleeve that is glued while flattened can set with a twist.
Check sliding access
Let the seam settle, then slide the object through from either end. Check near the seam and at any cover corners. This model intentionally has no end closure, lid or bottom. It holds by its wrap and fit; it is not a substitute for a closed transport box.