Getting your sourced products to your prep centre efficiently is a part of the process that many sellers do not think about enough. The shipping method you choose affects your costs, transit times, and the condition your stock arrives in. Both Royal Mail and courier services have their place, and the right choice depends on the size and value of what you are sending.
When Royal Mail Works Well
Royal Mail is ideal for smaller, lighter parcels. If you have sourced a few books, small electronics, or lightweight products that fit in a small to medium parcel, Royal Mail's tracked services (Royal Mail Tracked 24 or Tracked 48) offer reasonable rates with tracking and some level of compensation cover. For parcels under 2kg, Royal Mail is often the cheapest option.
The convenience factor matters too. You can drop parcels at any post office or use collection services, and Royal Mail's network means your parcel will usually arrive within one to two business days anywhere in the UK.
When a Courier Makes More Sense
For heavier parcels, multiple boxes, or fragile items, courier services like Evri, DPD, or UPS often work out cheaper per kilogram than Royal Mail. Once your parcel exceeds 2 to 3kg, compare courier prices through comparison sites like ParcelMonkey, Parcel2Go, or Interparcel. You can often get next-day tracked delivery for less than Royal Mail would charge for the same weight.
If you are sending multiple boxes at once — which is common when you have done a big sourcing trip — courier services are almost always cheaper and more practical. Some couriers also offer collection from your home, saving you a trip to the post office.
Packaging Your Shipments Properly
Regardless of which service you use, package your stock properly. Use appropriate box sizes (items rattling around in an oversized box get damaged), include adequate padding for fragile items, and seal boxes securely with packing tape. Label each box clearly with your name, the prep centre's address, and any reference numbers your prep centre uses to identify your stock.
At Precision, we recommend including a packing list inside each box listing the contents. This speeds up our receiving process and means your stock gets prepped faster. A few minutes of organisation on your end saves time and potential confusion at ours.
Building Shipping Costs into Your Margins
Whatever shipping method you use, factor the cost into your profit calculations. A product that looks profitable at 30% margin might only be 22% after shipping to your prep centre. Track your shipping costs per unit over time so your profitability calculations reflect reality, not estimates.