Packaging For Amazon Fba Sellers
Amazon FBA Prep: The Packaging Compliance Checklist
FBA receiving is a spec check, not a judgment call. Units that arrive bagged, boxed, and labeled to Amazon's published prep requirements flow through; units that miss the spec get delayed, re-prepped, or refused. This checklist runs product type by product type, the way a prep bench actually works: loose goods first, then case packs, then labels, with the exact cases we stock slotted into each step.
Sort every SKU with three questions
Before buying supplies, sort each product into a prep path. Is the unit loose, soft, or sold without sealed retail packaging? It gets bagged. Does it ship inside its own sturdy retail box? It case-packs as is. Is it fragile, liquid, granular, or apparel? Amazon layers extra prep on those categories, so pull the current Seller Central instructions for that SKU before committing to materials. Most catalogs sort out to roughly two thirds bag and one third box, which is why the bag spec below does the heavy lifting.
Loose and soft goods: getting the poly bag right
Stated as general guidance rather than a substitute for your category's instructions, Amazon's bag standard has four working parts. The bag must be transparent. The film should be at least 1.5 mil thick. Any bag with an opening of 5 inches or wider, measured flat, needs a suffocation warning printed on the bag or applied as a label. And the finished unit must be fully sealed, with its barcode scannable through the film or affixed to the outside.
Bags with the warning already printed
The fastest way to satisfy the warning requirement is film that arrives pre-printed. We stock clear poly bags with the suffocation warning printed on the bag in three sizes: 9x12 at $40.21 per case of 1,000, 10x15 at $53.64, and 12x15 at $66.13. That is 4 to 7 cents per unit with the labeling half of the bag spec already done.
One honest caveat before you commit a shipment: these are 1 mil film, and Amazon's published floor is 1.5 mil. Treat the pre-printed line as the answer for inner bags, dust covers, double-bag setups, and the channels you fulfill yourself, and verify the film weight your prep spec calls for before running a full FBA batch in them. Thickness is the half of the bag rule that gets missed most often, and we would rather flag it here than let receiving flag it for you.
1.5 mil bags for cords, kits, and long accessories
For the thickness floor itself, our 1.5 mil clear poly line runs in long, narrow formats sold as doorknob bags: 4x12 at $34.02 per case of 1,000, 4x16 at $38.18, 6x12 at $42.58, 6x16 at $53.87, and 7.5x25 at $83.76. The shape is the point. Cables, hardware kits, manuals, straps, and long accessories bag cleanly without folding into a bulge.
The opening width decides the warning. The 4-inch bags sit under the 5-inch threshold, so no suffocation warning is required on them. The 6-inch and 7.5-inch bags cross it, so add a printed warning sticker before sealing. None of these carry an adhesive strip, so close each one with a strip of tape, which also takes care of the sealed-bag requirement.
Boxed goods: case packs and the 50 pound line
Case-pack rules are simpler than bag rules but fail louder, because one bad box is a whole case of units. Use rigid, six-sided corrugated with intact flaps, pack one SKU per box unless your shipment plan says otherwise, and keep packed weight under 50 pounds. The standing exception is a single item that itself weighs more than 50 pounds, which then ships with team-lift labeling on the box. If a dense case pack is trending toward the line, split it. A second box is cheaper than a stalled receipt.
The case-pack workhorse
Our 18x14x8 ECT-32 kraft corrugated boxes run $35.91 for a bundle of 20, about $1.80 per box. The footprint is receiving-friendly: roughly 2,000 cubic inches, big enough to case-pack real quantities of bagged units, shallow enough that dense goods reach a full pack before they reach 50 pounds. When a SKU outgrows it, size up deliberately with our large shipping boxes guide rather than jumping to the biggest carton on the shelf, because a half-empty oversized box wastes freight on the way in and invites crushing in transit.
Labeling: the bench is where shipments go wrong
Every unit needs its correct scannable barcode, and any old barcode on reused packaging needs to be covered. The compliance step is simple; the failure mode is operational. Two SKUs open on the same bench, and a stack of units gets sealed with the wrong label inside the bag. The cheap fix is physical: label the bench and the staging shelves, run one SKU per lane, and finish each batch before the next carton is opened.
Marking lanes and staging racks
We stock 2x3.5 label holders in two mounts for exactly this. Magnetic vinyl holders, 50 per case, $41.17, about 82 cents each, move between steel rack positions as batches change. Press-on adhesive holders at $25.78 per 50, about 52 cents each, suit bins and shelf edges. Both hold slide-in cards you can rewrite per batch. They are prep-room organization, not unit labels.
The bag wall at a glance
| Bag | Film | Opening | Suffocation warning | Case of 1,000 | Per unit |
|---|---|---|---|---|---|
| 9x12 pre-printed warning bag | 1 mil | 9 in | Printed on bag | $40.21 | $0.04 |
| 10x15 pre-printed warning bag | 1 mil | 10 in | Printed on bag | $53.64 | $0.05 |
| 12x15 pre-printed warning bag | 1 mil | 12 in | Printed on bag | $66.13 | $0.07 |
| 4x12 clear poly | 1.5 mil | 4 in | Not required under 5 in | $34.02 | $0.03 |
| 4x16 clear poly | 1.5 mil | 4 in | Not required under 5 in | $38.18 | $0.04 |
| 6x12 clear poly | 1.5 mil | 6 in | Add warning sticker | $42.58 | $0.04 |
| 6x16 clear poly | 1.5 mil | 6 in | Add warning sticker | $53.87 | $0.05 |
| 7.5x25 clear poly | 1.5 mil | 7.5 in | Add warning sticker | $83.76 | $0.08 |
Two checks before every shipment
First, film thickness: pick up the case and confirm the mil rating matches what your prep spec requires, not what you remember ordering. Second, box weight: put the finished case pack on a scale before sealing the last flap. These two checks catch most of what receiving would otherwise catch for you, at far lower cost.
Selling on your own store too?
Most FBA sellers also ship direct, and the calculus flips the moment you do. On your own site there is no receiving spec; you control the packaging and the unboxing end to end, which opens cheaper formats like self-seal poly mailers that have no place in FBA prep. We built a separate volume-based kit for that channel: packaging for Shopify stores.
FBA prep questions
Do all poly bags for FBA need a suffocation warning?
No. The warning requirement applies to bags with an opening of 5 inches or larger, measured flat. Below that, no warning is required. When it is required, it can be printed on the bag or applied as a sticker before the unit is sealed.
How thick do FBA poly bags need to be?
Amazon's published bag standard calls for film at least 1.5 mil thick. Check the mil rating on the case before you prep a full shipment, because thickness is the part of the bag spec that gets missed most often.
How heavy can an FBA shipment box be?
Keep every box under 50 pounds. The general exception is a single item that itself weighs more, which then needs team-lift labeling on the box. If a dense case pack is creeping toward the line, split it across two boxes.
Can I reuse boxes for FBA shipments?
Yes, if the box is still rigid, has all six sides intact, and every old barcode and shipping label is removed or fully covered. A sagging box saves a dollar and risks the whole shipment, so reuse selectively.
Packrift ships from 5 US warehouses with no minimums, which fits how prep supplies actually get bought: a case of 1,000 bags for this shipment, a different size next month when the catalog shifts. Order the spec you verified, not the spec you assumed.
Prep requirements are summarized here as general guidance current at time of writing; Amazon's Seller Central prep pages are the controlling spec for your category and can change. Case prices are current at publish; product pages carry live pricing.