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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
395
Review
 4.7 out of 5
398 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.
398 Customer Reviews

Great on slab pier.

Would Recommend

I was redoing a old deck that was on top of a slab. I liked the fact that they were low profile and light weight.

August 3, 2025
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Price is too high but they work ok

It is dumb that they charge 12 bucks for a plastic block. It is clearly price gouging as the product is very cheap to make. They should be less expensive than concrete blocks, not more. They work but are priced way too high for what they are.

July 31, 2025
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An easier way to support 4x4 post

Would Recommend

Very impressed with the product a lot easier than other methods of supporting a long ramp and a deck at dock height for access to access a building.

July 23, 2025
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Easy to work with and better than concrete

Would Recommend

The price was a little high. But for the convenience of being lightweight compared to a concrete block is worth the difference

July 5, 2025
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Great alternative...

Simple, solid and easy to use... Great alternative to digging and cement...

June 26, 2025
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Perfect to projects

Easy to install

June 20, 2025
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These cross channel holders worked great!

Would Recommend

I bought these to hold up wood at an angle, for a 18 ft pool water heater.

June 10, 2025
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A little expensive, however, it’s better than dig.

Would Recommend

Strong and very easy to work with.

June 4, 2025
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