---
product_id: 644247936
title: "Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black"
brand: "fort decking systems"
price: "R$1288"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/644247936-fort-decking-foundation-deck-blocks-designed-to-accommodate-4x4-posts
store_origin: BR
region: Brazil
---

# Fits 4x4 posts & multiple joist sizes Lightweight at just 1.2 lb each Supports up to 1500 lb load Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black

**Brand:** fort decking systems
**Price:** R$1288
**Availability:** ✅ In Stock

## Summary

> 🏡 Build bold, build smart — your deck’s best foundation!

## Quick Answers

- **What is this?** Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black by fort decking systems
- **How much does it cost?** R$1288 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/644247936-fort-decking-foundation-deck-blocks-designed-to-accommodate-4x4-posts)

## Best For

- fort decking systems enthusiasts

## Why This Product

- Trusted fort decking systems brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Elevate your outdoor living:** Perfect for decks, pathways, sheds, and multi-level projects—upgrade your space with ease.
- • **Built to last with confidence:** Crafted from high-density plastic with a 25-year warranty for long-term durability.
- • **Rock-solid support for your deck:** Engineered to bear heavy loads up to 1500 lbs, ensuring a stable foundation for any project.
- • **Effortless installation, zero strain:** Feather-light 1.2 lb blocks make setup quick and easy, saving you time and energy.
- • **Ultimate versatility in construction:** Designed to accommodate 4x4 posts and 2x4 to 2x8 joists and beams for flexible deck designs.

## Overview

Fort Decking Foundation Deck Blocks are high-density plastic supports designed to hold up to 1500 lbs, fitting 4x4 posts and 2x4 to 2x8 joists. Lightweight at 1.2 lbs each and backed by a 25-year warranty, these blocks offer versatile, durable, and easy-to-install solutions for decks, pathways, and sheds.

## Description



## Features

- Sturdy foundation for various decking and home improvement projects
- Versatile, ideal for low and multi-level decks, as well as pathways and sheds, made to enhance your outdoor living spaces
- Designed to accommodate 4x4 posts, 2x4, 2x6, and 2x8 joists and beams, offering flexible construction options
- Robust, each bloc is capable of bearing up to 1500 lb. of weight, providing a reliable structure and comes with a 25-year warranty
- Feather-Light design weighing just 1.2 lb., they offer effortless handling and installation, minimizing labor intensity

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Form | Sheet |
| UPC | 775110904417 |
| Number of Items | 4 |
| Manufacturer | Naturae Decor |
| Part Number | FDB-4X2Z4 |
| Item Weight | 6.24 pounds |
| Product Dimensions | 12 x 12 x 3 inches |
| Item model number | FDB-4X2Z4 |
| Size | 4 Pack |
| Item Package Quantity | 1 |
| Number Of Pieces | 4 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** plastic
- **Brand:** Fort Decking Systems
- **Item dimensions L x W x H:** 12 x 12 x 3 inches
- **Color:** Black
- **Shape:** Rectangular

## Images

![Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black - Image 1](https://m.media-amazon.com/images/I/81qVs5gi5VL.jpg)
![Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black - Image 2](https://m.media-amazon.com/images/I/91InJ+CKT+L.jpg)
![Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black - Image 3](https://m.media-amazon.com/images/I/61CduFIuNUL.jpg)
![Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black - Image 4](https://m.media-amazon.com/images/I/61Slu0wRYDL.jpg)
![Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black - Image 5](https://m.media-amazon.com/images/I/71Ur0AJ54nL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made product
*by D***N on June 24, 2025*

Why did you pick this product vs others?:I bought these because they were marked down for being like new usee . Product looks new at a bargain.

### ⭐⭐⭐⭐⭐ Work great
*by J***8 on June 20, 2025*

Just like other floating deck footings. Same as you get from any big box hardware store but much less money.

### ⭐⭐⭐⭐⭐ They do what they say they will do and more .
*by J***E on May 17, 2025*

I want more, these things are great

## Frequently Bought Together

- Fort Decking Foundation Deck Blocks, Designed to Accommodate 4x4 Posts, 2x4, 2x6, and 2x8 Joists and Beams, High Density Plastic, Black
- Amazing Works Joist Tape for Decking - Heavy Duty Joist Tape, 2 x 50' Waterproof & Weatherproof Deck Flashing Tape Protects The Top of The Joist, Beam from Moisture and Rot (2" x 50', 4 Pack)
- XFasten Butyl Joist Tape for Decking, 2 Inch x 50 Feet, Professional Butyl Deck Joist Tape 2 Inch Waterproof Roof Sealant Flashing Tape, Black

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**Shop now:** [https://www.desertcart.com.br/products/644247936-fort-decking-foundation-deck-blocks-designed-to-accommodate-4x4-posts](https://www.desertcart.com.br/products/644247936-fort-decking-foundation-deck-blocks-designed-to-accommodate-4x4-posts)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-03*