Product Guide

The Role of Postal Boxes in Reducing Return Rates and Damages

Reduce costly returns and damage claims by investing in the right postal box packaging.

3 min readUpdated April 2025

The cost of returns

Product returns cost UK e-commerce businesses billions annually. A significant portion of returns are due to items arriving damaged, which is directly preventable with better postal packaging. Each return costs the business in shipping, processing, replacement product, and lost customer goodwill.

Damaged goods account for 20-30% of e-commerce returns in some categories
Each return costs £10-20+ in shipping, processing, and replacement
Better packaging can cut damage returns by 50-80% in most product categories

Quick answer

Right-sized postal boxes with appropriate board grade and proper cushioning can reduce damage-related returns by 50-80%. The cost of upgrading packaging is almost always less than the cost of processing returns. Focus on three areas: correct box size (no rattling), adequate board strength (no crushing), and sufficient void fill (no impact damage). Track your damage rate before and after changes to prove the ROI.

How better boxes reduce returns

Products that cannot shift inside the box cannot collide with walls or other items.

Using the correct flute type for the product weight stops boxes collapsing during transit.

Crash lock boxes ensure the same base quality on every parcel, eliminating weak-base failures.

Prevention starts here: packing guide or sizing guide.

Right-sizing prevents damage

The single most effective change is matching box size to product size. A box with 3-5cm clearance on each side, filled with appropriate cushioning, provides the right balance of protection and fit. Oversized boxes allow products to move; undersized boxes compress contents.

ROI of better packaging

Example: upgrading a box costs 10p more per unit. If it prevents 1 return per 100 orders, the saving is £10-20 per return vs 10p per box.
Track damage rates before and after packaging changes to prove ROI to stakeholders.
From ProcuraPack

Postal boxes that protect

Reduce damage claims with ProcuraPack postal boxes in the right size and strength for your products.

Browse postal boxes

Frequently asked questions

Damage-related returns can drop by 50-80% with correctly sized and specified postal boxes.

Products moving inside oversized boxes, inadequate cushioning, and box walls crushing under stacking pressure.

Almost always cheaper to upgrade. A 10p box improvement prevents returns costing £10-20+ each.

Add a return reason for damaged/packaging to your returns form and monitor monthly.

Using one box size for everything. Right-sizing to each product is the single most effective improvement.

Part of our guide

Product Guide: Postal Boxes

Expert guides on postal boxes, from sizing and materials to branding and cost optimisation.

Browse all guides →