Compare TuffBlock

TuffBlock vs Handi Block: Which Deck Block Is Better for Your Project?

If you're planning a deck, shed or outdoor structure in Australia, choosing the right deck foundation system is one of the most important decisions you’ll make.

Traditional concrete deck blocks and concrete deck footings have been used for decades across Australian builds. They offered a way to support posts without digging deep footings — and for a long time, that was the standard.

However, there's something they haven't told you.

Construction methods evolve, and modern Australian job sites now expect faster installation, lighter materials and more versatile deck foundation systems, particularly for low profile decks, raised decks and builds over concrete slabs.

TuffBlock isn’t just an alternative to concrete deck blocks.It’s the evolution of deck foundation systems in Australia.

Let’s break it down.

What Are Concrete Deck Footings and Pier Blocks?

Concrete deck footings, pier blocks and traditional post and footing systems are designed to support vertical loads beneath decks and raised structures.

These typically involve:

• Precast concrete deck blocks
• Concrete pier blocks
• Concrete deck foundations
• Post and footing installations

While concrete is strong, it comes with practical limitations:

• Heavy to transport and position
• Prone to cracking or chipping
• Labour intensive to level
• Less adaptable to modern deck design requirements

Concrete deck blocks were built for a different era of construction, when labour was cheaper and efficiency wasn’t as critical.

What Is TuffBlock and How Does It Compare to Concrete Deck Blocks?

TuffBlock is an engineered deck foundation system made from recycled structural plastic.

Each block only weighs approximately 680 grams, yet is break-tested to nearly a staggering 5 tonnes!

Unlike concrete deck blocks, TuffBlock:

• Will not crack or chipIs ultra-lightweight
• Can be installed quickly
• Accommodates multiple timber sizesIs suitable for structures up to 1500mm above ground

Concrete was the starting point. TuffBlock is the next generation of deck foundations built for modern Australian job sites.

Deck Footings Without Digging – Is It Possible?

One of the most common questions is whether deck footings without digging are achievable. With traditional concrete deck footings, excavation is often required. Even when using pier blocks, significant site preparation and levelling is needed. TuffBlock is designed to sit on properly prepared and compacted ground, reducing the need for deep excavation or poured concrete.

This makes it ideal for:

• Low profile decks
• Temporary structures
• Projects with restricted access
• DIY installations

When ground preparation is done correctly, deck footings without digging become both practical and efficient.

TuffBlock vs Concrete Deck Blocks – Side-by-Side Comparison

So how many deck blocks would you need?

Choosing the right deck foundation is only part of the equation. Knowing how many deck blocks your project requires is just as important.

The number of deck footings depends on:

• Deck sizeJoist spacing
• Bearer layout
• Load requirements
• Ground conditions

To make it simple, we’ve built a dedicated Deck Block Calculator to help you estimate the number of TuffBlocks required for your project.

👉 Use the TuffBlock Deck Block Calculator