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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
341
Review
 4.7 out of 5
343 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product is praised for being lightweight and easy to handle, providing a sturdy and durable foundation, and being convenient and easy to install without the need for digging or burying. While the cost may be higher than traditional concrete blocks in some cases, the product is considered a game-changing alternative that makes deck and shed construction more accessible, especially for DIY projects.

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

Easy to use and light weight.

Would Recommend

This item worked great for the posts of a raised deck to go around the above ground pool.

May 11, 2026
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Works great

Would Recommend

Very easy to use, worked out great for the project i was doing. Highly recommend.

May 10, 2026
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Tough enough!

Would Recommend

Great tough blocks! Easy to use to build our shed floor and even things out!

May 10, 2026
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Love the ease of use

Would Recommend

This product made my lean to shed project a lot easier to build and align, will be using on other projects !

May 10, 2026
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In the ground rote free support.

Would Recommend

Great in ground support easy to use and would not Detroit’s as wood would.

May 9, 2026
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If you’re working on unlevel ground have posts

Would Recommend

Creates a solid foundation without any digging or concrete made this project a lot easier

May 9, 2026
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Low cost for immense weight support

Would Recommend

Very sturdy

May 6, 2026
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Works for me!

Would Recommend

Perfect for the Base in my Dragon Fruit Trellis Planter.

April 28, 2026
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perfect for our shed sub floor

Would Recommend

Super light and convenient

April 27, 2026
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Works well

Product works as expected

April 27, 2026
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Great support.....

Would Recommend

Ease of use. Very stable & supports your deck with multiple products being used.

April 27, 2026
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Convenient quality support for no dig situations.

Crazy convenient product. This is such a good idea for added support with digging.

April 24, 2026
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Sub par

Would Not Recommend

Just ok, not deep enough to hold 4x4, wind blows over. Need to drill in for full benefit

April 23, 2026
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Say Whaaaa¿

Would Recommend

I like the sturdiness of this product.

April 23, 2026
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Light Weight and Low to the Ground

Would Recommend

If I had used pre-cast concrete deck supports, I would have had to dig small holes to place them in, in order to get the deck as low as I wanted. This product, in comparison, holds the boards quite low to the ground, which allowed me to get the deck as low as I wished. The light weight plastic is much easier than working with heavy concrete. Poured footings and heavy concrete blocks have their place, but this is a great alternative in many situations.

April 20, 2026
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Sturdy, Quality Product

Would Recommend

I used these plastic deck supports on my new front porch. I originally picked them because of their shorter height than the cement supports. However, they work great - they are sturdy and easy to install. The only issue I have with them is that I now have to figure out a way to cover the parts of it that are showing since I don't like the look as much.

April 16, 2026
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