What you'll need
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For a fragile handmade item, choose packaging around its weak points and the carrier’s cushioning instructions. A bubble mailer does not provide rigid crush protection. For breakable ceramics, glass or delicate projections, start with an appropriate inner package and a protective outer box; use a specialist packing service when you cannot establish adequate protection.
The carrier numbers to work from
UPS’s two-box method specifies cushioning around the inner box and describes an outer box six inches greater in each dimension, with three inches of cushioning around the inner box. Compare the actual outer dimensions of the inner box with the usable inside dimensions of the outer one. Catalog sizes alone do not establish that clearance.
The material must remain suitable under the load. Three inches of loosely crumpled paper that collapses under a dense object is not equivalent to a designed cushion. UPS describes kraft paper as void fill for lightweight non-fragile goods; do not treat that as proof it protects an exposed ceramic mug.
Pack to the item’s weak point
| Item | What needs protection | Purchase decision |
|---|---|---|
| Ceramic mug | Handle, rim and hollow interior | Suitable cushioning plus a box system that isolates the item |
| Glass ornament | Thin walls and projecting parts | Individual protection and separation from other contents |
| Flat print | Surface, corners and bending | A properly sized rigid enclosure; use a box for greater protection |
| Framed art | Frame corners, glazing and surface | Purpose-designed packaging or professional packing |
Do not allow pieces to contact each other or the box walls. A fragile sticker cannot replace protection. Keep decoration and presentation materials separate from the structural packing decision.
Packing sequence
- Record the item’s dimensions, weight and vulnerable parts.
- Select an appropriate cushion and container; check the box’s load rating.
- Immobilize the protected item without forcing pressure onto a handle or projection.
- Provide the required cushioning around the inner package and close without bulging.
- Seal according to the carrier’s instructions, using the required tape width.
- Weigh and measure the sealed outside package, including all packing materials.
Use box selection and dimensional weight to compare package choices after protection is resolved. A smaller parcel is not a saving if it cannot protect the contents.
Rigid mailers for flat prints and cards
Measure the protected print, including its sleeve and any board, against the enclosure’s usable dimensions. An 8.5-inch-wide opening leaves no clearance for an 8.5-inch sheet plus wrapping. A stiff envelope reduces bending compared with an unreinforced bag, but it does not establish suitability for every print or carrier route. Choose a box when the required protection exceeds the mailer’s capability.
Checking the packing
A gentle movement check can reveal loose contents; passing it does not validate resistance to drops, vibration or stacking. Do not describe informal home drops as an ISTA test or use a successful trial as a guarantee for future parcels. Use the carrier’s guidance and a qualified packaging assessment for valuable or difficult goods.
USPS packing guidance requires strong packaging, room for cushioning and secured seams. The shipping tape guide explains why a listed 1.88-inch roll should not be treated as a full two-inch roll.
Sources checked November 4, 2026. This is desk research, not tested packaging certification.