To work out your peak season packaging order, take your normal weekly parcel volume, multiply it by the uplift you expect in November and December, multiply that by the number of busy weeks, then add roughly 20% as a buffer. Split that total by pack type rather than treating every order as one box, and place the main order in October so you are not paying for express delivery in the middle of your busiest fortnight.
Peak season catches sellers out in a predictable way. Product stock gets watched closely and reordered on time. The packaging around it gets treated as an afterthought, right up until the shelf is empty on a Tuesday morning with forty orders waiting to go out. A couple of hours of planning in September or October removes that problem entirely, and usually costs less than the express delivery charges it saves.
How much packaging stock do you need for peak season?
There are four numbers to work out, in this order.
- Your normal weekly parcel volume. Take a quiet month earlier in the year and work out a simple weekly average. Use despatched orders, not orders placed.
- Your expected peak uplift. If you have traded through a previous Christmas, compare your busiest week in November or December against that normal week to get a multiplier. If this is your first peak season, plan on double and review it in November.
- The number of peak weeks. For most UK e-commerce sellers that is roughly six weeks, from the middle of November through to the last posting dates in December, followed by a returns and exchanges tail in January.
- A buffer. Around 20% on top is sensible. It covers a better than expected run, damaged or crushed stock, mis-picks and the parcels you end up repacking.
Here is the calculation with round numbers, purely as an example:
| Step | Example figure |
|---|---|
| Normal weekly parcels | 120 |
| Expected peak uplift | 2x |
| Peak weekly parcels | 240 |
| Number of peak weeks | 6 |
| Base requirement | 1,440 packs |
| Buffer at 20% | 288 packs |
| Total to hold in stock | 1,728 packs |
That total is your starting point, not your order. The next step is where most of the value is.
Split the total by pack type, not by parcel
An order for 1,728 boxes of one size is almost always the wrong order. Look at what you actually sent in your last busy month and group it by the pack you used. Most sellers find their volume falls into three or four repeatable formats, such as a large letter box for flat items, a small parcel box for the bulk of orders, a mailer for soft goods and one larger box for multi-item orders.
Getting that split right matters more at peak than at any other time of year, because every parcel you send in an oversized box is paid for twice, once in the box and once in the postage band. If you are sending flat items, working within the Royal Mail PiP size bands keeps those parcels in the cheaper band instead of tipping them into small parcel pricing. For everything else, a considered range of postal boxes in two or three sizes will beat one compromise box every time. If you are not sure which sizes map to your products, the size finder is quicker than measuring everything by hand.
Which packaging runs out first at peak?
It is rarely the boxes. Boxes are visible, they take up space and they get counted. The items that stop a packing bench are the ones stored in a drawer.
- Tape. The single most common mid-peak shortage. Work out how much tape one of your parcels actually uses by sealing one and measuring it, then divide your roll length by that figure to get parcels per roll. Multiply up and you will usually find you need considerably more packaging tape than you assumed.
- Void fill. Usage rises faster than parcel count at peak, because multi-item orders leave bigger gaps. If your average order value climbs in December, your void fill and bubble wrap usage climbs with it.
- Labels. Cheap, small, and completely stop despatch when they run out. Order a peak quantity, not a normal one.
When should you order peak season packaging?
Order in two waves rather than one. The first wave is the bulk of your requirement, placed in October. The second is a smaller top-up in late November once you can see how the season is actually trading, which stops you sitting on eleven months of surplus in January.
Timing the first wave around the published lead times is what keeps the cost down. On standard delivery at Parcelsend, non-personalised orders arrive in 3 to 5 working days and delivery is free over £100, or £6.95 below that. A 48 hour upgrade is £6.95 and next working day is £9.95, with a 3.00pm order cut-off Monday to Friday. Ordering in October means you take the free option. Ordering on the first Monday in December means you pay for speed, on top of an order you were always going to place.
Printed packaging needs longer again. Personalised orders run on a Standard Express service of 6 to 10 working days, free over £70, so anything printed for a Christmas campaign wants to be approved by the middle of October at the latest. Faster options exist, at £50.00 for a 3 to 5 working day Priority service and £80.00 for Priority+ at 1 to 2 working days, but they are a rescue, not a plan.
How to store flat-packed packaging without damaging it
Buying three months of stock is only a saving if the stock is still usable in December. Boxes are supplied flat-packed, and a light crease along the fold lines is normal and does not affect strength, but storage does.
- Keep flat-packed boxes lying flat or standing tight on edge, not leaning at an angle, which bows the board over time.
- Get everything off a concrete floor and onto a pallet or shelf. Concrete draws damp upwards and damp board loses compression strength.
- Store away from radiators, direct sun and unheated damp corners. Cardboard takes on moisture from the air, and a softened box fails in transit.
- Do not stack bundles so high that the bottom ones crush. Two or three bundles is plenty.
- Keep tape somewhere warm. Cold tape is noticeably harder to unwind and seals less reliably on a cold morning.
- Rotate stock so the oldest bundles get used first.
What if you run short mid-peak?
It happens, and it is recoverable. A next working day order placed before the 3.00pm cut-off will land the following working day. Same day collection from our Cannock warehouse is also available subject to availability, though it is worth ringing first on 01543 572 776 to check stock before making the journey. Bear in mind that delivery is all day, 7am to 6pm, Monday to Friday via third party couriers, and there is no Saturday delivery, so a Friday afternoon shortage is a Monday morning problem.
Your peak season packaging checklist
- Work out normal weekly volume, peak multiplier, peak weeks and a 20% buffer.
- Break the total down by pack type using last year's actual despatch mix.
- Check your sizes still suit your current products and postage bands.
- Count tape, void fill and labels properly instead of estimating.
- Place the main order in October on free standard delivery.
- Approve any printed artwork by mid October.
- Check the current Royal Mail last posting dates once published and work your despatch deadlines back from them.
- Store stock flat, dry and off the floor.
- Review in late November and place a top-up.
Get your peak stock in early
The cheapest packaging order you will place this year is the one you place calmly in October. If you are reviewing your sizes before you commit, start with the size finder and the full range of postal boxes, and order a sample before committing to a peak quantity of something you have never handled.
If a Christmas campaign is part of your plan, printed packaging is worth deciding on now rather than in November. A large part of our range carries a personalised option, printed in defined print areas on stock packaging, and a visual proof is always issued before production so you can see exactly what you are getting. The lead times are the reason to start early, not the artwork.
