TL;DR - biggest levers
- Right‑size packaging: reduce dimensional weight. Keep most parcels within 100×150 mm label format and small‑parcel size tiers.
- Use 2 - 3 carriers: route by weight, size, region, and SLA. Avoid one‑size‑fits‑all pricing.
- Batch & scan‑to‑print: less admin time per order → lower labour cost per parcel.
- Validate addresses up front: cut address‑correction and remote‑area surcharges.
- Review contracts quarterly: renegotiate breakpoints, fuel/peak surcharges, and Saturday options.
Quick wins (under 1 hour)
Scale = 100%, label = 100×150 mm
Stop reprints and waste. Set default paper size and 100% scale in printer prefs + browser.
Address validation
Enable postcode/house number validation to cut failed deliveries and correction fees.
Weight sanity check
Audit top‑selling SKUs. Correct bad weights that push orders into higher price bands.
Packaging & dimensional weight
- Right‑size boxes: Downsize outer cartons to avoid DIM weight thresholds.
- Use mailer bags where safe: Switch from boxes to poly/padded mailers for apparel & soft goods.
- Standardise a small set: 3 - 4 approved sizes reduce picking errors and over‑boxing.
- Measure true DIM: Carriers bill on the greater of actual vs dimensional - don’t guess.
Carrier mix & service mapping
- Light parcels (≤1 kg): Often Royal Mail/Evri win for cost & coverage.
- 1 - 15 kg or time‑critical: DPD for predictability and customer comms.
- Bulky/oversize: Parcelforce or specialist networks.
- International: RM Intl Tracked for small packets; UPS/DHL for express.
Deep dive: Best UK shipping options (2025)
Process & labour savings
- Batch pick by zone: Shorter walks, fewer touches.
- Scan‑to‑print: Label prints when the order barcode is scanned.
- Block labels until verified: Require SKU scans to prevent mis‑picks and costly reships.
- Automate tracking & emails: Fewer WISMO tickets and manual updates.
International cost control
- Use correct HS codes & origin: Avoid customs holds and return‑to‑sender waste.
- IOSS/low‑value relief: For EU B2C, sending with IOSS can reduce payer confusion & fees.
- DDP vs DDU: For premium experience, offer DDP on higher‑value baskets; use DDU for budget tiers.
- Packet vs express: Route light, low‑value orders via tracked packet services.
Returns & refunds
- On‑demand labels: Generate return labels only when needed (QR options help).
- Consolidate returns: Use drop‑off networks to reduce collection fees.
- Analyse reasons: Fix repeat offenders (sizing, packaging damage) to reduce return volume.
Negotiating with carriers (template)
Ask your account manager for price breaks with this simple script:
Hi <Name> - we ship ~<X> orders/month with
<weight bands> and <destinations>. We’re evaluating
bringing <carrier> more volume if we can hit:
• New base rate: £<target> for <service> up to <weight>
• Surcharges: waive address correction / reduce remote area
• Peak: cap at <x>% for Nov - Dec
• Saturday: include at no extra cost on Next Day
Can we run a 4‑week pilot and review results together?
Savings estimator
This is directional; your mix of weights, destinations, and surcharges will vary. Use it to frame a business case.
Common surcharge pitfalls
- Address corrections and inaccessible/remote areas
- Dimensional weight rounding pushing you into the next band
- Saturday/AM surcharges added by mistake
- Batteries, aerosols, blades shipped via the wrong network
Reduce spend with ParcelOffice
Rules → Cheapest viable carrier → Automatic labels
ParcelOffice evaluates each WooCommerce order against your rules and contract rates, chooses the best carrier for cost & SLA, prints labels on scan, and writes tracking back automatically.
Also see Eco‑friendly shipping for cost‑aligned sustainability wins.
FAQs
Is Evri cheaper than Royal Mail?
Sometimes - for standard parcels and the right bands. Royal Mail can win on light packets and nationwide coverage. Test both and route by rules rather than picking a single winner.
What label size saves money?
Label size doesn’t change courier cost directly, but standardising 100×150 mm (4×6″) reduces misprints and wasted labels - indirect savings.
How do I get better rates?
Bring volume data, promise a trial shift of a specific band, and ask for reductions on surcharges (address correction, remote area) and a cap on peak.
Won’t multi‑carrier make things complex?
Not if you automate. A rules engine chooses the carrier and prints the right label on scan. For staff, it’s simpler than manual decisions.