What's the Difference Between 1.3G and 1.4G Fireworks?

If you've ever browsed fireworks online or visited a fireworks shop, you've probably noticed products labelled as either 1.3G or 1.4G. While these classifications might seem confusing, they are important safety designations that help determine how fireworks are stored, transported, and handled.

Understanding the difference between 1.3G and 1.4G fireworks can help you make informed purchasing decisions and better understand the products you're buying.

What Do 1.3G and 1.4G Mean?

The numbers 1.3G and 1.4G are hazard classifications used for the transport and storage of explosives, including fireworks.

These classifications are part of international regulations and are designed to identify the potential risk presented by a firework if it becomes involved in a fire or accidental ignition during transport.

The "G" stands for pyrotechnic substances, while the numbers indicate the level of hazard.

1.4G Fireworks

1.4G fireworks are considered to present a lower hazard during transport and storage.

If a 1.4G firework accidentally ignites, the effects are generally expected to remain largely confined to the package, with a lower risk of a mass explosion.

Most consumer fireworks sold in the UK fall into the 1.4G category.

Common examples include:

• Selection boxes
• Small to medium garden rockets
• Fountains
• Roman candles
• Many consumer cakes
• Sparklers

Because of their lower hazard classification, 1.4G fireworks are generally easier to transport and store than 1.3G products.

What Are 1.3G Fireworks?

1.3G fireworks are classified as presenting a greater fire and blast hazard during transport.

This does not necessarily mean they are unsafe to use. In many cases, 1.3G fireworks simply contain more energetic compositions or are designed to produce larger and more powerful effects.

Many premium display cakes, large compound fireworks, professional-style rockets and high-performance display products are classified as 1.3G.

Examples may include:

• Large display cakes
• Compound fireworks
• Professional-style barrage packs
• High-performance rockets
• Some display packs

These fireworks often deliver bigger bursts, louder effects, longer durations and more impressive displays.

Does 1.3G Mean Better Fireworks?

Not necessarily.

One of the biggest misconceptions is that 1.3G automatically means a firework is better than a 1.4G firework.

In reality, the classification only refers to the transport hazard, not the quality of the firework.

Many outstanding consumer fireworks are classified as 1.4G, while some larger products receive a 1.3G classification because of their composition or packaging.

The performance of a firework depends on factors such as:

• Effect design
• Burst size
• Duration
• Build quality
• Manufacturer standards
• Firing sequence

The hazard classification alone does not determine how good a firework will be.

Why Are Some Fireworks Classified as 1.3G?

Several factors can influence classification, including:

Larger Quantities of Pyrotechnic Composition

Fireworks containing greater amounts of pyrotechnic material may be more likely to receive a 1.3G classification.

More Powerful Effects

Products designed to create larger bursts, louder reports or wider effect spreads can sometimes fall into the higher hazard category.

Packaging and Testing Results

Fireworks are tested according to strict transport regulations. The final classification depends on the outcome of these tests rather than simply the size of the firework.

Can Consumers Buy 1.3G Fireworks?

Yes.

Many 1.3G fireworks are available for sale to the general public in the UK, provided they meet the relevant legal requirements and age restrictions.

However, some retailers may have specific collection, transport or storage requirements due to the classification.

Always check product information and follow all guidance provided by the retailer.

Storage and Transportation Differences

Because 1.3G fireworks present a higher transport hazard, there are often stricter regulations surrounding:

• Commercial transportation
• Warehouse storage
• Distribution
• Quantity limits

For consumers purchasing fireworks for private use, these differences are largely handled by the retailer before the fireworks reach the customer.

Safety Is Always the Priority

Whether a firework is classified as 1.3G or 1.4G, the same basic safety principles apply:

• Always follow manufacturer instructions.
• Observe recommended safety distances.
• Never return to a firework once lit.
• Keep spectators at a safe distance.
• Store fireworks in a cool, dry place.
• Keep fireworks away from children and pets.

A properly used 1.3G firework can be just as safe as a 1.4G firework when operated according to instructions.

Which Should You Choose?

The best choice depends on the type of display you're planning.

If you're organising a small family garden display, many 1.4G fireworks will provide excellent entertainment and value.

If you're looking to create a larger, more dramatic display with bigger effects and longer durations, you may find that some 1.3G products offer the performance you're looking for.

The most important factor is selecting quality fireworks from a reputable retailer and choosing products that suit your available space and audience.

Final Thoughts

The difference between 1.3G and 1.4G fireworks relates to their transport hazard classification rather than their quality or safety during normal use.

While 1.3G fireworks are generally classified as having a greater fire and blast hazard during transportation, both categories can provide spectacular displays when used correctly.

Understanding these classifications helps consumers make informed decisions and appreciate why certain products may have different transport, storage or delivery requirements.

Whatever fireworks you choose, always follow safety guidance and purchase from a trusted fireworks retailer.