How many are in each order?

$32 for 1?! Go to Lowe’s. They are like $9.80 for 1!

How many would I need for a 10x20 shed floor?

The number you need is determined by size of the beam, most small sheds are probably 2 x 6 joists and spacing should not exceed 5'. Are you using 4x4 posts?

Can one be used for mailbox support?

Don’t see why not. Put a 4x4 post in the middle and should be good to go! Make sure surface is level under the block.

Deliver to NGA

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Instant Foundation Block Deck Support System for 4" x 4" Posts and 2" Joists

Instant Foundation Block Deck Support System for 4" x 4" Posts and 2" Joists

Product ID: 174657781

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Details

Material
100% Recycled
Brand
TuffBlock
Item dimensions L x W x H
12 x 12 x 3.5
Shape
Rectangular
Item Form
solid

⚖️1.5 lbs ultra-lightweight

🛠️Fits 2" joists & 4x4 posts

🏋️‍♂️Supports 1700+ lbs load

Description

🚀 Build smarter, not heavier—deck foundations redefined!

INSTANT SETUP - Say goodbye to curing times—this foundation block lets you build floating decks instantly.
HEAVY DUTY STRENGTH - Engineered to hold over 1700 lbs, ensuring rock-solid deck stability.
FEATHERWEIGHT DESIGN - At just 1.5 lbs, it’s 28x lighter than concrete blocks—easy to handle, install, and transport.
SLEEK DURABLE FINISH - Satin finish combines professional aesthetics with long-lasting weather resistance.
UNIVERSAL COMPATIBILITY - Seamlessly supports all standard 2" nominal joists and 4x4 posts for versatile deck builds.

The TuffBlock Instant Foundation Block is a lightweight, high-strength deck support system designed for 4x4 posts and 2" joists. Weighing only 1.5 lbs yet supporting over 1700 lbs, it replaces bulky concrete blocks with a quick, adaptable, and durable solution perfect for floating decks and platforms.

Specifications

Item Form	Rectangular
Item Weight	0.69 Kilograms
Manufacturer	TuffBlock
Part Number	TB001602
Item Weight	1.52 pounds
Product Dimensions	12 x 12 x 3.5 inches
Item model number	TB001602
Is Discontinued By Manufacturer	No
Finish	Satin
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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