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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
393
Review
 4.7 out of 5
394 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.
394 Customer Reviews

This form is able to take a 4x4, 2x4, 2x whatever.

Would Recommend

Great support for my chicken coop.

April 5, 2026
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THESE ARE SO GOOD FOR DECKS .ADDING ON SUPPORT .

Would Recommend
March 28, 2026
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n/a

n/a

March 25, 2026
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Decks done right

Would Recommend

Excellent block base for ground decks

March 22, 2026
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Low rise, solid.

Would Recommend

Light weight and easy to maneuver under porch. I did place on top of a 12" x 12" concrete square for support, but that was because of the mud.

March 11, 2026
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East Peasy

Would Recommend

Very sturdy alternative to concrete blocks and Easier to transport

March 10, 2026
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Worth the money and save a lot of time.

Would Recommend

Made the job so much easier trying to level the deck platform.

March 10, 2026
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Light and movable easy to setup

Would Recommend

The plastic is firm with a large footprint to spread weight of deck lot quicker to use than cement piers

February 2, 2026
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Better than the concrete blocks earlier to use and

Would Recommend
January 21, 2026
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Not impressed

Would Not Recommend

Not what I expected. No way to secure 4 x 4 or 2 x 6 etc to the tough block.

January 12, 2026
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Perfect

This item working perfectly! Perfect to keep the The bottom of my fence post dryer, which will equal less time to rot and fits perfectly with a sauna tube. I used for the securing of the fence post.

December 5, 2025
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good stuff

Would Recommend

ease of desisign

November 16, 2025
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It's a post base

Would Recommend

Guess it okay

November 11, 2025
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Out performs concrete in every way

My pros on this product, lightweight,and stronger than concrete, stackable and lower profile.

November 9, 2025
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Tuff It Is !

Would Recommend

Can be uses with 2x4 pressure treated lumber or steel for foundations. Fits fine on 12x123 concrete and up! Git 24 for my foundation project.

November 6, 2025
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