The shipping boxes you use to send wholesale stock to Amazon FBA are as important as the products inside them. Amazon’s fulfilment centres operate at enormous scale — processing thousands of inbound shipments every day using conveyor systems automated sorting equipment and warehouse staff working at high velocity. To function efficiently within this environment every box entering the system must meet specific structural weight and labelling requirements. Boxes that are too heavy too large poorly sealed or incorrectly labelled disrupt the receiving process — and Amazon’s response is to refuse the non-compliant box return it to the sender or apply compliance charges that come directly out of the seller’s account balance.

We are Brandhunterz Ltd — a UK registered wholesale sourcing company (Company No: 15342697) — and in this complete guide we cover every Amazon FBA box requirement that wholesale sellers need to know and follow — from maximum weight and dimension limits through box construction standards correct sealing methods void fill requirements box labelling rules and the specific additional requirements for heavy or oversized boxes.

The Core FBA Box Specifications — Weight and Dimensions

Every FBA shipment box must meet Amazon’s core weight and dimension requirements without exception. These limits exist to protect warehouse staff from injury and to ensure boxes can be handled by Amazon’s automated equipment. There are no exemptions — even a box that is one kilogram over the weight limit or one centimetre over the size limit will be refused at the fulfilment centre dock.

Requirement	Limit	What Happens if Exceeded
Maximum gross box weight	50kg	Box refused at dock — returned to sender at seller’s cost
Maximum dimension — any single side	63.5cm	Box refused at dock — returned to sender at seller’s cost
Team Lift label required above	15kg	Box may be refused or handled incorrectly — injury risk to staff
Mechanical Lift label required above	23kg	Box may be refused — mechanical handling equipment required for safe movement
Minimum box size	No minimum	Any size accepted — but very small boxes may jam conveyor equipment

Box Construction Requirements

Amazon requires shipping boxes to be structurally sound enough to survive the inbound transit process and the stacking and sorting that occurs inside the fulfilment centre. A box that collapses during transit or in the warehouse damages your stock and creates receiving delays. Here are the construction requirements for every FBA shipping box:

Construction Requirement	Specification	Why It Matters
Box material	Double-wall corrugated cardboard — strongly recommended	Single-wall boxes collapse under the weight of boxes stacked on top during storage and transit
Box condition	No holes punctures tears or water damage — structurally intact	A compromised box may be refused at receiving — stock inside may be deemed as potentially damaged
Reused boxes	Acceptable if structurally sound — all old labels and barcodes must be removed or fully covered	Old barcodes cause routing errors — old shipment labels confuse receiving staff and systems
Box opening	Standard top-opening regular slotted container — RSC style	Non-standard box openings complicate automated handling — use standard RSC boxes only

Correct Box Sealing — The H-Tape Method

The H-tape sealing method is the only acceptable sealing approach for FBA shipping boxes. It applies tape in an H pattern across both the top and bottom seams of the box — creating a strong seal that prevents the box from opening during transit or when being moved by automated equipment in the warehouse. A box sealed with a single strip of tape across the centre seam only — sometimes called a centre seal or I-seal — is significantly weaker and frequently fails during the transit process.

Tape Type	Acceptable	Notes
Heavy-duty polypropylene packing tape — 50mm wide	✅ Yes	Best option — strong adhesion — available in brown or clear
Reinforced kraft paper tape — water-activated	✅ Yes	Excellent adhesion — tamper evident — preferred for very heavy boxes
Sellotape or masking tape	❌ No	Insufficient adhesion for FBA box weights — fails in transit
Duct tape	❌ No	Not recommended — residue on box scanning surfaces — not approved for FBA use

Void Fill Requirements — No Movement Rule

Every FBA shipping box must be packed so that the contents do not move when the sealed box is shaken. This is Amazon’s no movement rule and it exists to prevent product damage during the mechanical handling that occurs throughout the inbound transit and receiving process. Empty space inside a box allows products to shift — causing packaging damage label peeling and in some cases product damage that renders units unsellable.

Void Fill Material	Acceptable	Best Used For
Bubble wrap — 50mm or 100mm bubble	✅ Yes	Fragile products — glass — ceramic — filling gaps between items
Kraft paper — crumpled packing paper	✅ Yes	General void fill — non-fragile products — sustainable option
Air pillows — inflated packaging pouches	✅ Yes	Lightweight products — filling large void spaces quickly and efficiently
Foam sheets or foam padding	✅ Yes	Fragile or oddly shaped items — provides cushioning and shape retention
Loose polystyrene chips	❌ No	Not permitted — escapes from boxes during handling — contaminates fulfilment centre equipment
Shredded paper or newspaper	❌ No	Not permitted — compresses under weight — provides inadequate protection — debris risk

FBA Box Labelling Requirements

Each shipping box in your FBA shipment must carry specific labels in specific positions. Missing or incorrectly placed labels prevent Amazon from processing your box efficiently at the receiving dock and can cause your box to be held pending manual investigation. Here are all the labelling requirements for FBA shipping boxes:

The Amazon FBA Box Label

Every box must carry exactly one Amazon FBA box label — generated in Seller Central during the shipment plan creation process. This label contains your shipment ID the box number in your shipment and a scannable barcode that links your physical box to its declared contents in Amazon’s system. The specific placement and application rules for the box label are:

Box Label Requirement	Specification
Position on box	Largest flat face of the box — not on a seam or corner — not on the bottom of the box
Number of labels per box	Exactly one — multiple labels on one box cause scanning confusion at receiving
Label orientation	Applied flat — right way up — barcode scannable without rotating the box
Distance from courier label	Must not overlap or be placed directly beside the courier tracking label — keep clearly separate
Label applied to correct box number	Box 1 label on Box 1 — Box 2 label on Box 2 — matching declared contents exactly

Team Lift and Mechanical Lift Labels

Boxes exceeding certain weight thresholds require additional warning labels to protect warehouse staff. These labels alert receiving staff that the box requires specific handling procedures before it is moved:

Weight Threshold	Label Required	Label Position
Over 15kg gross weight	Team Lift — requires two people to lift	Applied on two opposite sides of the box — clearly visible from multiple angles
Over 23kg gross weight	Mechanical Lift — requires mechanical handling equipment	Applied on two opposite sides of the box — clearly visible from multiple angles

Dealing With Old Labels and Barcodes on Reused Boxes

Using reused boxes is permitted for FBA shipments — but any old barcode labels previous shipment labels courier tracking labels or other markings from previous use must be completely removed or made completely unscannable before the box is used for a new FBA shipment. This is not a minor administrative detail — an old barcode on the outside of a box that is scanned at the receiving dock routes the box to the wrong location or triggers a receiving error for a completely different shipment.

Old Label Type	How to Handle
Old courier label — DHL UPS Royal Mail	Peel off completely — if residue remains cover fully with a solid opaque sticker or black marker
Previous Amazon FBA box label	Peel off completely — cover any residual barcode with opaque tape or sticker
Barcodes printed directly on the box	Cover completely with a solid black marker or opaque adhesive tape — must not be scannable
Supplier product barcodes on the outer box	Cover completely — supplier barcodes on the shipping box exterior cause misrouting at the warehouse

The Complete FBA Box Requirements Checklist

Box Requirement Check	Confirmed
Box is double-wall corrugated cardboard — no damage or holes	☐
All old barcodes and previous labels removed or fully covered	☐
H-tape applied to all top and bottom seams	☐
Contents do not move when box is shaken — void fill confirmed	☐
Box weighed — confirmed under 50kg gross	☐
Box measured — no side exceeds 63.5cm confirmed	☐
Team Lift label applied if box is over 15kg	☐
Mechanical Lift label applied if box is over 23kg	☐
Amazon FBA box label applied on largest flat side away from seams	☐
Correct numbered box label applied to correct numbered box	☐
All 10 checks confirmed — box ready for courier collection	✅ Ready

Conclusion — Box Compliance Protects Your Stock and Your Margins

Every box that arrives at an Amazon fulfilment centre non-compliant costs the seller money — through return shipping fees disposal fees compliance charges or simply the delay in stock going live while issues are investigated. Meeting every box requirement correctly before your shipment leaves is always faster and cheaper than resolving non-compliance after the fact. Build the box compliance checklist into your standard preparation process and complete it on every shipment without exception.

Find your next wholesale brand through our Brands Directory. Research every product with Keepa. Confirm your margin with AMZScout. And pack every box to meet every Amazon requirement using this guide.