Packaging that survives the courier

Something arrived broken and now you're paying twice: once to replace it and once in the message you have to write to a customer who was excited an hour ago.

Assume every parcel you send is dropped from waist height at least once, gets rained on, and spends part of its journey under something heavier. Pack for that. In practice it means the product can't touch any wall of the box, the box can't flex when you squeeze it, and the whole thing survives being dropped on your own kitchen floor from a metre up. That last test costs one parcel and about ₹80 of materials, and it will change how you pack forever.

Fragile stickers do not change what happens inside a sorting facility. Physics does.

Do the drop test before you read anything else

Pack one parcel exactly as you'd send it. Seal it. Then drop it on a hard floor from about a metre, once on a flat face, once on a corner. Corners are where damage actually happens, and a corner drop concentrates the whole force into one point.

Open it. Look at what moved.

You'll learn three things immediately, and you can't learn them any other way:

• Whether your void fill actually holds the product still, or just fills space.
• Whether the product's weakest point is protected, which is usually a handle, a spout, a lid or a corner.
• Whether the box itself deforms, which tells you the board is too thin for the weight.

Most sellers who do this once discover that their parcel passes the flat drop and fails the corner drop. That's the normal result, and the fix is almost always more padding at the corners rather than more padding overall.

The six-sided rule

Every side of the product needs a gap between it and the box. Every side, including the bottom, which is the one people forget because the product sits on it while they're packing.

Two to three centimetres of cushioning on all six sides is the working minimum for anything that isn't soft. For glass and ceramics, five centimetres, and it's non-negotiable.

That means the box is bigger than the product by 4 to 6cm in every dimension, and that has a cost, since courier pricing usually depends on both weight and volume. Every seller eventually has to decide between a snug box that costs less to send and breaks more often, and a larger one that costs more and arrives whole. Work out what a breakage actually costs you, replacement plus postage twice plus the customer, and the arithmetic usually favours the bigger box for anything fragile.

The exception is soft goods. A t-shirt in a poly mailer needs no void fill at all, because there's nothing to break and nothing to move. Don't put a folded scarf in a box with bubble wrap. It's money spent on nothing.

What to use, and what each thing is actually for

Material	Good for	Not for
Corrugated box, double-wall	Anything heavy, anything fragile, anything over 5kg	Light soft goods, where it's wasted money
Poly mailer	Clothing, textiles, anything unbreakable and water-sensitive	Anything with a corner or an edge
Bubble wrap	Wrapping the product itself, especially edges and handles	Filling empty space, which it does badly
Kraft paper, crumpled	Filling empty space, cheaply	Wrapping, where it gives no cushioning
Air pillows	Filling large voids in light parcels	Heavy items, where they burst
Corrugated inserts or dividers	Multiple glass or ceramic items in one box	Single items, where they're overkill
Tape, 48mm+	Sealing. Three strips across the seam, both ends	Holding a structurally inadequate box together

The distinction people get wrong is wrapping versus filling. Bubble wrap around the product absorbs impact. Bubble wrap loosely stuffed around a product in a box compresses on the first knock and then the product is loose for the rest of the journey. Wrap first, fill second, and use different materials for each.

Shake test: seal the parcel, shake it near your ear. If you hear anything move, it isn't packed. Open it and add more fill.

Liquids, glass and powders

Liquids. Two barriers, always. Cap taped or sealed with a shrink band, bottle in a sealed poly bag, then wrapped, then boxed. A leak doesn't just ruin one order; it ruins whatever's next to it in the van, and couriers remember that.

Glass and ceramics. Wrap each piece individually, even if two identical mugs are going to the same address. Two mugs wrapped together become one heavy object that hits itself. Pay particular attention to handles and rims, which is where breaks start.

Powders and loose goods. Double bag, and seal the inner bag properly rather than folding it over. A spice packet that bursts inside a box coats everything, including the invoice.

Anything with a lid. Tape the lid shut before you wrap. A lid that comes off in transit turns a small problem into a spilled one.

More on the specific techniques for breakables is in shipping fragile things, which goes further into inserts, corner protection and what to do about items that genuinely cannot be shipped safely.

The outside of the parcel

One label, flat, on the largest face. Not wrapped around a corner, where a scanner can't read it and a sorting machine tears it. If the label is paper and glued on, cover it with clear tape, leaving the barcode uncovered if your courier's scanner is optical.

A second address inside the box. Write it on a slip of paper and drop it in. If the outer label is destroyed, and outer labels do get destroyed, this is the only thing standing between your customer and a warehouse of unclaimed parcels. It costs nothing and almost nobody does it.

No branding that advertises what's inside, if the contents are worth stealing. Electronics, phones, jewellery. A plain box gets stolen less than a box with a logo on it.

Fragile stickers. Use them, but understand what they do. They don't change how the parcel is handled in an automated sorting facility. They occasionally change how a human rider handles the last hundred metres, which is worth the two rupees, and they help if you're claiming on insurance later. They are not a substitute for packing.

Unboxing versus protection

Tissue paper, stickers, a handwritten note and a ribbon are worth real money in repeat custom. They're also weight, cost and, in some cases, a reason the product isn't held tightly enough.

The way to have both: protect first, decorate second. Product wrapped in bubble or corrugated, then the pretty layer, then void fill, then box. The tissue paper is inside the protection, not instead of it.

And cost it. If your unboxing extras run to 40 rupees a parcel and you send 200 parcels a month, that's ₹8,000 a month, which for most small shops is more than the shop subscription and the packaging materials combined. Worth it for a ₹2,000 order. Probably not for a ₹300 one. What actually goes in the box, and what earns its place there, is worth its own think: what to put in the box covers the extras that produce repeat orders and the ones that just cost money.

Cash on delivery changes the packing

In markets where cash on delivery is the normal way to buy, and that's most of India, much of Nigeria, the Philippines, Indonesia and Vietnam, your parcel has to survive something extra: being refused.

A refused parcel travels the full distance twice, gets handled twice as much, and comes back to you as stock you want to resell. If it's packed to survive one journey, it won't be resellable after two.

Two practical consequences.

Pack so the parcel can come back. Sealed well enough that a returned parcel arrives intact and the product inside is still sellable. This is the argument for slightly over-packing COD orders specifically, even when it costs a little more.

Expect the parcel to be opened at the door in some markets. Open-box delivery is common enough in India that you should assume the buyer may look inside before paying. Everything the buyer sees in that first ten seconds is deciding whether they hand over the cash. A parcel that opens into a mess of loose crumpled paper with the product rattling at the bottom gets refused more often than one that opens neatly, even when both products are fine.

Return-to-origin rates on cash on delivery are high enough to be a business problem rather than an annoyance, and the ways to bring them down are mostly about confirmation and expectation-setting before dispatch. Cash on delivery for small sellers covers the refusal side properly.

Worked example: ceramic mugs, Mumbai to Guwahati, ₹850

Anjali sells hand-thrown ceramic mugs from Mumbai at ₹850 each, about 60 a month, roughly two thirds within Maharashtra and a third going long distance across India.

Her breakage rate in her first four months was around 6%, which sounds small until you do the arithmetic. Four mugs a month at ₹850 is ₹3,400 of product, plus ₹120 of return or replacement shipping each, plus the four apology conversations. Call it ₹4,000 a month, on revenue of about ₹51,000. Nearly 8% of her turnover, going into bin bags.

What she was doing: single-wall box, bubble wrap loosely wrapped around the mug, crumpled newspaper on top.

What she changed:

1. Double-wall box, 5cm bigger than the mug in every direction. Cost went from ₹18 to ₹34.
2. Handle protected separately. A strip of bubble wrap around the handle before the mug is wrapped, because every single break she'd had started at the handle.
3. Corrugated collar cut from an old box, wrapped around the mug body. ₹0, made from packaging she was throwing away.
4. Kraft paper fill, packed until nothing shifts when shaken. ₹6.
5. Address slip inside the box.

Packaging cost per parcel went from ₹31 to ₹52, an extra ₹21. Across 60 parcels that's ₹1,260 a month. Her breakage went from about 6% to under 1%, saving around ₹3,300 a month. Net gain, roughly ₹2,000 a month, plus the four conversations she no longer has to have.

The handle wrap was the change that mattered and it costs about two rupees. She found it by doing the drop test six times and noticing that the mug never broke; the handle always did. That's not something you can work out by reading about packaging, and it's specific to her product. Yours will have its own weak point, and the drop test is how you find it.

Long-distance parcels going to the North East also spend longer in transit and get handled more, so she uses the same packing for everything rather than trying to run two standards. One method, applied to everything, is what actually gets followed at 9pm on a Thursday.

Getting faster without getting sloppier

Packing is the job that eats your evenings, so build the process rather than improvising each parcel.

• Pre-cut your materials. Bubble wrap in the right lengths, collars pre-cut, boxes flat-packed but scored. Ten minutes of prep saves an hour of packing.
• One station, laid out the same way every time. Tape on the right, fill in a box under the table, labels printed in advance.
• Pack in batches by product, not by order, if you sell repeatable items. Wrap fifteen mugs, then box fifteen mugs, then label fifteen boxes.
• Check the address against the order at the label stage, once, out loud. The most expensive packing error isn't a break. It's a perfect parcel sent to the wrong person.

Buy materials in quantities that match a month of orders rather than a week's, because running out of boxes on a Thursday is how a careful packer becomes an improvising one.

The honest limitation

Sailo takes the order. It doesn't book the courier, print the label, or tell you the parcel arrived, and there's no native app to do any of that from. The parcel is entirely yours, start to finish.

The same is true of the money on manual rails. Sailo can't tell you a bank transfer landed; only your bank can. Which matters here more than it sounds, because the order in which you do things is: money confirmed, then pack, then ship. Packing before you've checked the transfer is how sellers end up posting goods they were never paid for, and it happens most often on the busy days when you're trying to get everything out before the courier pickup.

What to do next

Pack one parcel tonight exactly as you normally would, seal it, and drop it on your kitchen floor from a metre. On a corner, not a flat face. Open it and look at what moved.

Whatever moved is your problem, and it'll be one specific thing rather than a general lack of padding. Fix that one thing and drop it again. Two parcels, twenty minutes, and you'll have a packing standard you can actually defend.

Then work out what a breakage costs you in full, replacement plus both legs of postage plus the customer, and compare it to the cost of a bigger box. If a parcel does go missing rather than break, the process for chasing it is in what to do when a parcel goes missing. And if you're still finalising the product itself, the photograph is what sets the expectation the parcel has to live up to: how to photograph what you sell covers making the picture honest as well as good.