---
product_id: 510787826
title: "4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5\"x3.5\" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets"
price: "NZ$168"
currency: NZD
in_stock: true
reviews_count: 11
url: https://www.desertcart.nz/products/510787826-4-4-post-base-4-pcs-deck-post-brackets-inner
store_origin: NZ
region: New Zealand
---

# 3.5"x3.5" inner fit Black powder coat rust-proof Heavy-duty steel build 4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets

**Price:** NZ$168
**Availability:** ✅ In Stock

## Summary

> 🛠️ Secure your space with strength and style—because your posts deserve the best!

## Quick Answers

- **What is this?** 4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets
- **How much does it cost?** NZ$168 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/510787826-4-4-post-base-4-pcs-deck-post-brackets-inner)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile & Universal:** Supports porch railings, fences, pergolas, and more—ideal for home, garden, or farm projects.
- • **Effortless Installation:** Comes with 8 body holes and 4 base holes plus expansion bolts and self-tapping screws for wood or concrete floors.
- • **Customer-First Guarantee:** Backed by a satisfaction promise—easy replacement or refund if it doesn’t meet your expectations.
- • **Perfect Fit for 4x4 Posts:** Inner dimensions of 3.5"x3.5" ensure seamless wood insertion and a snug, secure hold.
- • **Built to Last Through Seasons:** Crafted from premium heavy-duty steel with a black powder coating that resists rust, rain, and heat.

## Overview

The Grehitk 4×4 Post Base 4 Pcs set offers a robust, rust-resistant steel foundation designed for standard 4x4 posts with an inner size of 3.5"x3.5". Its universal design supports various outdoor structures, ensuring durability and easy installation on wood or concrete surfaces, making it a must-have for professional-grade fencing, porch, and pergola projects.

## Description

Product description Grehitk Firm & Sturdy Post Base Heavy Duty Bracket Our post base uses high quality steel (2mm) as raw material, it is strong and stable enough to hold wood posts. In order to achieve better effect of anti-corrosion and anti-rust, its surface uses powder coated processing, which also makes the whole product look beautiful and textured. Fits 4 x 4 Inches Post Grehitk Brand History Grehitk focuses on producing and selling outdoor metal suits tools around the world for several years, and has always pursued product quality as its mission. Powder-coated Carbon Steel Thickened Plate & Box Design Full-set & Easy Installation Widely Use In Our Life Our Grehitk 4×4 post base bracket is very sturdy, used to repair and strengthen wooden iron railings, avoid shaking and damage. For indoor and outdoor use, provide railing support brackets for backyard, park, terrace, riverbanks, etc. as porch railing support, fence post base, handrail support. Fit for 4"x 4" Wood Post Strength & Durability Rust Resistant Multiple Application Enhanced Durability There are four mounting holes on the bottom of the post anchor. Eight self-tapping screws need to be installed on the side of the post base. Easy Installation Each base provides 4 x 3/8 Expansion Bolt and 8 x Self-tapping Screw are supplied, fixed on a wooden floor or concrete floor. Rustproof and Long-lasting The post base is rust-proof, wear-resistant, and rock-solid with black powder paint. Universal Compatibility It is very suitable for deck brackets, porch railings, stair handrails, mailbox posts, etc. FITS 4×4'' POST The durable product provides an inner diameter of 3.6x3.6 inches. Its standard dimension allows you to install post 4x4 inches. It is perfect for fixing your fence posts economically. Post Base For Postbox Heavy Duty Post Base are designed and manufactured by professionals to make the fence look beautiful and strong. Multi-range Applications

Review: Very well made, pleased with purchase. - Made extremely well, heavy duty with heavy screws included. 4x4 fits tight, solid product. They have not been exposed to rain yet, can’t comment on the powder coat but appears to be coated well.
Review: Excellent Post Bases - I have used a several dozen of these so far, mostly for building decks. They are sturdy and well made. If the posts are loose or too tight, it's because of the difference in the post sizes, not the fault of the post base. Yes, I purchased different anchors because I wanted the anchors to match the color of the post base. Also, don't expect to just drop a post into a base and it will magically be plumb!

## Features

- for 4 x 4" Post Base- Our Grehitk Post Base for standard 4x4 posts (actual inner dimensions 3.5"x 3.5", more easy to insert the wood). It is very firmly attached to the ground whether it is used for wood or concrete floors.
- Sturdy Post Base- The post bases are made of premium heavy-duty steel, with black powder paint for rust-resistant to go through the entire summer of heat and rain.Sturdy enough to support the bottom of your post.
- Universal Design- The post base bracket not only suitable for post support bracket, porch railing support, fence post base, hand rails support, etc, but also suitable for many scene such as home, garden, farm, etc.
- Easy to install- Each post base bracket has eight holes on the body and four holes on the bottom. Each base provides 4 x 3/8 Expansion Bolt and 8 x Self-tapping Screw are supplied, fixed on a wooden floor or concrete floor, you have your choice.
- Our Commitment- Our integrity is supreme and we attach great importance to product quality and customer satisfaction.If you are not satisfied with your product for any reason, just contact us and we will replace the product or refund your order.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Grehitk |
| Part Number | GRE0057-4PCS |
| Item Weight | 9.11 pounds |
| Product Dimensions | 12 x 9 x 6 inches |
| Item model number | GRE0057-4PCS |
| Size | 4 Pack Post Base 4x4" |
| Color | 4PCS |
| Included Components | screw |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets - Image 1](https://m.media-amazon.com/images/I/711F5VvElPL.jpg)
![4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets - Image 2](https://m.media-amazon.com/images/I/71MnP+0dldL.jpg)
![4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets - Image 3](https://m.media-amazon.com/images/I/61dbIg6-5fL.jpg)
![4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets - Image 4](https://m.media-amazon.com/images/I/81nrN-kGhbL.jpg)
![4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets - Image 5](https://m.media-amazon.com/images/I/71gR+17EAqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very well made, pleased with purchase.
*by L***A on June 24, 2025*

Made extremely well, heavy duty with heavy screws included. 4x4 fits tight, solid product. They have not been exposed to rain yet, can’t comment on the powder coat but appears to be coated well.

### ⭐⭐⭐⭐⭐ Excellent Post Bases
*by M***Y on May 9, 2025*

I have used a several dozen of these so far, mostly for building decks. They are sturdy and well made. If the posts are loose or too tight, it's because of the difference in the post sizes, not the fault of the post base. Yes, I purchased different anchors because I wanted the anchors to match the color of the post base. Also, don't expect to just drop a post into a base and it will magically be plumb!

### ⭐⭐⭐⭐⭐ Perfect!
*by S***S on September 7, 2025*

Perfect, not too pricey, worked well for my project (adding a banister to a deck). Recommended.

## Frequently Bought Together

- Grehitk 4×4 Post Base 4 Pcs,Deck Post Brackets,Inner Size 3.5"x3.5" Thick Steel Fence Post Anchor Base,Black Powder Coated Heavy Fence Post,for Supports Porch Railing Post Holders Pergola Brackets
- Eapele 20pcs Deck Railing Brackets Connectors for 2x4 Railing Wood Post with 120pcs Wood Screws

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-05-27*