A Complete Guide to Postal Packaging Supplies

When it comes to sending parcels, using the right packaging supplies is essential. Whether you're a small business, e-commerce seller, or simply sending items occasionally, your packaging plays a key role in protecting goods, reducing costs, and ensuring safe delivery.

But with so many options available, it can be difficult to know what you actually need.

In this complete guide, we’ll break down the essential postal packaging supplies, what they’re used for, and how to choose the right ones for your needs.

What Are Postal Packaging Supplies?

Postal packaging supplies are the materials used to pack, protect, and ship items safely through the postal system. They include everything from:

• Cardboard boxes and mailing bags.
• Protective materials.
• Sealing products.
• Labelling essentials.

Choosing the right combination ensures your parcels arrive securely and professionally.

1. Parcel Boxes

Parcel boxes are one of the most commonly used packaging solutions, offering strength and structure for a wide range of items.

Types of Boxes:

• Single wall boxes - Suitable for lightweight items. View our range of single wall boxes here.
• Double wall boxes - Ideal for heavier or fragile goods. View our range of double wall boxes here.

Best For:

• Fragile products.
• Bulkier items.
• Multi-item shipments.

👉 Boxes are essential when protection is your top priority.

2. Mailing Bags

Mailing bags are a lightweight and cost-effective alternative to boxes.

Types of Bags:

• Poly mailing bags - Waterproof and durable.
• Paper mailing bags - More eco-friendly option. View our range of paper mailing bags here.
• Eco-friendly mailing bags - The most eco-friendly option. View our range of eco-mailing bags here.

Best For:

• Clothing and textiles.
• Soft goods.
• Non-fragile items.

👉 Mailing bags help reduce postage costs due to their lighter weight.

3. Padded Envelopes

Padded envelopes (also known as bubble mailers) offer built-in protection with a cushioned interior.

Types of Padded Envelopes:

• Gold or white bubble-lined padded envelopes - Most common type of mailer around. View our range of bubble-lined padded envelopes here.
• Paper padded envelopes - More eco-friendly option. View our range of paper padded envelopes here.
• Eco-friendly padded envelopes - The most eco-friendly option. View our range of eco-friendly padded envelopes here.

Best For:

• Small, fragile items.
• Electronics accessories.
• Jewellery and cosmetics.

👉 They provide a balance between protection and cost-efficiency.

4. Void Fill Materials

Void fill is used to fill empty space inside a parcel, preventing items from moving during transit.

Common Types:

• Bubble wrap - The go to solution for protecting goods. View our range of bubble wrap here.
• ZigZag shredded paper - Perfect for filling your boxes with atheistically pleasing protection. View our range of ZigZag shredded paper here.
• Air packaging - Perfect for protecting bottles, electronics, ceramics and more, providing cushioning around items. View our range of air packaging here.
• FlexHold™ boxes - The perfect, most innovated void fill solution on the market, incorporating void fill with a cardboard box. View our range of FlexHold™ boxes here.

Why It Matters:

• Reduces risk of damage.
• Protects against impact.
• Keeps items secure.

👉 If there’s empty space in your box, you need void fill.

5. Packaging Tape

Packaging tape is essential for sealing parcels securely.

Common Types:

• Standard packing tape.
• Heavy-duty tape for stronger boxes.

Tips:

• Always seal all edges of a box.
• Use quality tape to prevent parcels opening in transit.

👉 A poorly sealed box can lead to damaged or lost goods. View our range of packaging tapes here.

6. Labels and Documentation

Clear and accurate labelling is critical for successful delivery.

Includes:

• Address labels.
• Shipping labels.
• “Fragile” or handling labels.

Why It’s Important:

• Ensures correct delivery.
• Reduces delays.
• Improves handling.

👉 Even the best packaging won’t help if your parcel isn’t labelled correctly.

7. Protective Packaging Accessories

Depending on what you’re sending, you may need additional protection.

Examples:

• Corner protectors.
• Stretch wrap.
• Foam inserts.

These are especially useful for:

• High-value items.
• Fragile goods.
• Irregular shapes.

How to Choose the Right Packaging Supplies

Choosing the right supplies depends on a few key factors:

• 📦 Product Type - Is it fragile, heavy, or soft?
• ⚖️ Weight - Heavier items require stronger materials.
• 🚚 Transit Conditions - Will it be handled multiple times?
• 💷 Cost Efficiency - Balance protection with packaging costs.
• 📏 Size - Avoid oversized packaging to reduce postage costs

Common Packaging Mistakes to Avoid

Even with the right supplies, mistakes can happen. Below are the common packaging mistakes you need to avoid.

• ❌ Using boxes that are too large - Leads to movement and potential damage.
• ❌ Not using enough void fill - Items shift and break.
• ❌ Choosing the wrong packaging type - For example, using mailing bags for fragile goods.
• ❌ Poor sealing - Parcels can open during transit.

Final Thoughts

Postal packaging supplies are more than just materials, they’re a crucial part of your delivery process. Using the right combination helps you protect your products, reduce damage, improve customer satisfaction and keep costs under control. Whether you’re sending a single parcel or managing high volumes, having the right packaging setup makes all the difference.

At Parcelsend UK, we supply a wide range of packaging solutions designed to support any UK business - whether you're shipping from a warehouse or your living room. View our range of packaging supplies here.