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2-1/2-in Black Plastic Deck support

Ratings & Reviews for TuffBlock 2-1/2-in Black Plastic Deck support

4.7
404
Review
 4.7 out of 5
404 Reviews


96% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise these deck supports for their ease of installation, lightweight design, and superior durability. Most highlight how simple setup is—simply level the ground and place blocks with no digging, tools, or expertise required. Many note they can carry stacks of 10 with ease, making solo projects manageable. Reviewers consistently confirm the blocks securely support 4x4 posts and beams for decks, sheds, and ground-level structures. Made from recycled plastic, they resist cracking and shifting under load. A few mention cost concerns, but most consider them an excellent investment for convenience and reliability.

Customer review summary generated by AI, including incentivized reviews.
404 Customer Reviews

Great product

Great product. I used in conjunction with sunken posts. Allows for flexibility and ease to make changes if needed.

May 25, 2026
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Lighter than using pavers

What I like about the Tuff bBock product it is light weight. The label was big to read and understand. It was easy for a one person job to move around. Anyone over age of 60 can manage the product.

May 25, 2026
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Simple support

Fast easy set up.

May 25, 2026
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Remember to use it the way it was intended.

Would Recommend

Works great!

May 25, 2026
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Will buy it again

Would Recommend
May 24, 2026
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Worst experience ever in the history

Would Not Recommend

Lowes is the absolute worst store for construction pros

May 23, 2026
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Great support for floating deck builds

Would Recommend

These deck support blocks worked really well for my floating deck project. Lightweight but sturdy, easy to position, and helped speed up the installation process. Worked great with 2x8 framing and provided a solid, level foundation. Definitely a good alternative to pouring concrete footers for smaller decks.

May 23, 2026
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Easy to use

Works great for dragon fruit 4x4 base

May 22, 2026
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Faster and lighter than digging.

Would Recommend

This was my first time using a no-dig foundation for a free-standing deck. I've done many concrete foundations for decks, sheds, and small houses. This was easier on my long-retired, creaky bones and complaining muscles. The deck is strong and stable. I don't see any problems in the future. I strongly recommend these Tuff-blocks.

May 19, 2026
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The low profile and light weight are great.

Would Recommend

The product worked great for my application

May 18, 2026
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More convenient than concrete!

Would Recommend

Easy to use, holding up so far. Will have to check back inna few years from now.

May 16, 2026
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Only use when needed, not a replacement

Would Recommend

Would work in a pinch or if digging a hole isnt possible

May 14, 2026
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Much easier than goncrete

Would Recommend

Lightweight compared to concrete, says it is made from recycled plastic and more durable. Lower profile for short deck

May 12, 2026
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God but pricey

Would Recommend

Easy install and high height capacity. Quite pricey for what it is. Concrete blocks are way cheaper but take more labor to move around and install.

May 12, 2026
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This erected my board license straight

Would Recommend

This made my wood stand up straight

May 11, 2026
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