Three elective trolleys
Three baskets at three budgets show where weight starts to beat price. A £20.00 basket carries one or two light items, a £60.00 basket carries three, and a £120.00 basket carries five or six, and the only figure that changes the shape of all three is the chargeable weight rather than the goods value.
1. Fix a weight ceiling before a budget ceiling, using 1.5 kg for a £20.00 basket. 2. Add items until the weight ceiling binds rather than until the money runs out. 3. Recompute the freight at the actual chargeable weight before you decide the basket is finished.
Compare the three optional baskets before you commit to a headline figure, because the headline and the settlement are different numbers. Our recorded sample settled a £120 basket at £108.34, a £40 basket at £48.75 and a £210 basket at £167.93 (all Recorded) — 90.3%, 121.9% and 80.0% of headline. Steps: 1. Enter the goods subtotal, the intended line and the packaging charge rather than the headline alone; 2. Compare your running total with those three ratios; 3. If your basket sits between £35 and £45, expect roughly a fifth on top and add one more piece, so the £8.40 first weight (Recorded) spreads across more grams. When a basket settles below 85% of its headline, as the £210 one did, the movement sits in the carrier band rather than in the goods, so trim nothing and re-check the band first. Rate movement supports the same habit: across 12 re-checks between 2026-08-01 and 2026-10-02, four same-line first weights rose, the largest by £1.60 (Recorded), which is why we record the first weight on the day a basket is weighed rather than on the day it was planned.
Octet beneath £20
Eight items in our record sit under £20.00 each and under 0.8 kg each: two tees at 0.4 kg, a cap at 0.3 kg, a belt at 0.4 kg, a pair of socks at 0.1 kg, a light overshirt at 0.7 kg, a scarf at 0.3 kg and a small bag at 0.6 kg. Not one of them crosses a weight band that would be crossed anyway by the packing material.
1. Compare the weight column before the price column. 2. Cross out any item whose weight sits within 100 g of a band edge, because packing material will push it over. 3. Keep the crossed-out items in a separate list for an order where you are already near the top of a band.
Judge each of the eight pieces on its own carriage share rather than on its price tag. Our sample recorded a £42.30 goods subtotal across eight pieces, an average of £5.29 each (Recorded), while the recorded 3.8 kg line carried £20.00 of freight at £5.26 per kg (Recorded), so a single £5.29 piece travelling alone would owe close to four times its own value in carriage. Steps: 1. Enter the packed weight of every shortlisted piece; 2. Compare the running total with the 1 kg, 2 kg and 3 kg band edges (Recorded), since the table charges £8.40 as first weight and £13.20 at 2 kg; 3. If a piece lifts the parcel onto a new band by less than 200 g, set it aside and re-weigh the remainder. Request the evidence you need per piece: across six re-shoots, explicit requests for a label or seam shot returned inside 6 hours, while vague requests took 2 days (Recorded). Of 23 flags raised on 85 curated entries, 11 concerned labels, 6 edge or border marks — 5 of those lighting artefacts — 4 hardware and 2 stitching (Recorded).
£42.30 for the octet
All eight together come to £42.30 of goods at a combined weight of 2.4 kg, which lands in the 2 to 3 kg tier on our recorded band table at £19.60 of freight. Add a 6% service fee on goods plus domestic freight of about £2.60 and the settled total is £64.50, so the basket costs half as much again as the goods.
1. Add the goods subtotal and the freight figure. 2. Add the service fee computed on goods plus domestic freight rather than on goods alone. 3. Compare the total against the goods subtotal and note the ratio, which on this basket is 1.53.
Build the £42.30 basket from its recorded lines instead of trusting its total. At a packed 3 kg the recorded table charges £19.60, packaging adds £3.50, and the 6% service fee — the rate that produced £6.13 against an £84.60 goods line (Recorded) — adds about £2.54 on £42.30 before domestic carriage, leaving a visible landed figure near £67.94, or £8.49 per piece, ahead of the ¥12 and ¥8 domestic lines (derived from Recorded lines). Steps: 1. Enter goods, band, packaging and the 6% fee as separate lines; 2. Compare the per-piece result with the carriage a single piece would carry alone; 3. If the eight-item parcel crosses 3.8 kg, the recorded line becomes £26.40 — a £6.80 step for 800 g (Recorded). Credits move on their own clock: of 14 credit events, 9 landed within 3 days and the rest took up to 11 days (Recorded), and two promotional codes were refused inside the window with no reason we could establish (Not verified). If a credit has not appeared by day 4, leave the basket packed as it stands rather than re-weighing it.
£13.60 for a trio
A three-item basket of the same type — a tee, a cap and a belt, 1.1 kg together — costs £13.60 of goods and £12.40 of freight, with about £1.10 of service fee, a settled total of £27.10 at a ratio of 1.99. The lighter basket carries almost the same freight as the heavy one because the first-kilogram fee dominates it.
1. Compute the first-kilogram fee as a share of the total freight. 2. If that share is above 60%, the basket is too light to benefit from consolidation. 3. Add weight until the share falls below 50%, or accept the ratio and choose fewer, heavier items.
Convert every carton into a billable weight before comparing bands, because the divisor decides the outcome. The rule we recorded: volumetric weight equals length × width × height in centimetres divided by 5000, 6000 or 8000, rounded up to the next 0.5 kg, with billable weight being the greater of actual and volumetric. Take a 40 × 25 × 16 cm carton — 16,000 cubic centimetres: under an 8000 divisor it bills at 2.0 kg and £13.20 (Recorded), while under 6000 the same box reaches 2.667 kg, rounds to 3.0 kg and bills at £19.60 (Recorded), £6.40 apart on one unmarked figure. Steps: 1. Enter the external dimensions of the packed carton, never the bare item; 2. Compare the divisors against the 1, 2, 3, 5, 8 and 10 kg band edges (Recorded); 3. If the divisor is missing, do not assume one, because 3 of our 12 rate re-checks between 2026-08-01 and 2026-10-02 carried no divisor at all (Not verified). Re-measure after any re-pack: shaving 3 cm from one side of that carton removes 1,200 cubic centimetres and can drop the rounded figure by a full 0.5 kg step.
Fill to the top of a plateau once a basket has crossed it. Our recorded table prices 8 kg and 8.5 kg identically at £43.60, and 10 kg and 11.5 kg identically at £54.60, with 14 kg quoted on the same band structure, so the last 500 g inside a plateau travels free while the first gram of the next one carries the whole step. Steps: 1. Enter the billable weight and find the band above it; 2. Compare the marginal rate, since 3.8 kg at £26.40 rising to 5.1 kg at £31.80 is £4.15 per added kg (Recorded), cheap enough to justify one more light piece; 3. If the next step would cost more than the piece adds, hold the remainder for a later parcel. Timing belongs in the same sum: of 24 recorded UK lines in the 2026-08-01 to 2026-09-30 window, medians ran from 8 days on a four-parcel line to 19 days on a three-parcel line, and storage stayed free from the inbound scan. Pieces beyond that free window were reported at £0.20 per piece per day (Community-reported), with 8 of 24 running 1 to 14 days and the longest about £2.80 (Recorded).
One supplement
Adding a single 1.4 kg item to the three-item basket moves the combined weight from 1.1 kg to 2.5 kg, which takes the freight from £12.40 to £19.60 — a £7.20 increase for £7.90 of goods. The ratio improves from 1.99 to 1.61 while the absolute spend rises, and that trade is the whole decision at this budget.
1. Price the addition on its own including the freight delta rather than the freight average. 2. Divide the freight delta by the item cost to see what the addition really costs per pound spent. 3. Add the item when that figure is below £1.00 in freight per £1.00 of goods.
Mass shifts them
Price barely separates these items; weight separates them completely. Two items at £18.00 each, one weighing 0.4 kg and the other 1.6 kg, end up £14.00 apart once freight is priced at the band table, and the cheaper-looking item with the heavier box is the more expensive purchase.
1. Rank the shortlist by weight rather than by price. 2. Price the two heaviest and the two lightest through the band table. 3. Drop any item whose weight puts the basket into a higher tier when a lighter alternative exists in the same category.
The data point behind this note
Eight recorded items under £20.00 each and under 0.8 kg each came to £42.30 of goods at 2.4 kg combined, billing £19.60 of freight and settling at £64.50 — a ratio of 1.53 against goods (Recorded).
Rates last checked 2026-10-02. Where a figure is community-reported we say so; where we could not verify it, we write Not verified instead of estimating.