---
product_id: 489718289
title: "4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount"
brand: "axwhys"
price: "₨1548"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/489718289-4x4-post-base-4-pcs-inner-size-3-6x3-6
store_origin: SC
region: Seychelles
---

# Fits 3.6x3.6 inch posts perfectly Black powder coated rustproof finish 13GA thick solid steel 4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount

**Brand:** axwhys
**Price:** ₨1548
**Availability:** ✅ In Stock

## Summary

> 🛠️ Secure your outdoor sanctuary with style and strength!

## Quick Answers

- **What is this?** 4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount by axwhys
- **How much does it cost?** ₨1548 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/489718289-4x4-post-base-4-pcs-inner-size-3-6x3-6)

## Best For

- axwhys enthusiasts

## Why This Product

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

## Key Features

- • **Rot-Resistant Design:** Innovative base partition keeps wood elevated, preventing rot from moisture exposure.
- • **Unmatched Durability:** Crafted from 13-gauge solid steel for long-lasting strength and stability.
- • **Versatile Application:** Perfect for decks, pergolas, fences, mailboxes, and more—upgrade your outdoor space with confidence.
- • **Weatherproof Elegance:** Black powder coating ensures rust resistance and sleek, modern aesthetics.
- • **Complete Installation Kit:** Includes 24 expansion anchors, 24 wood screws, and 32 self-tapping screws for hassle-free setup.

## Overview

This 4-piece 4x4 post base set by AXWHYS features 13-gauge solid carbon steel construction with a black powder-coated finish for superior rust resistance. Designed with a unique partition to prevent wood rot, it includes all necessary screws and anchors for easy installation on concrete or wood surfaces. Ideal for supporting decks, pergolas, fences, and mailbox posts, it combines durability with sleek design to elevate your outdoor projects.

## Description

4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount

## Features

- Material Of 4x4 Post Base: Made of Solid Steel, Black Powder Coated, Rustproof and Strong.
- Deck Post Base： Used to support porch railings, pergolas, gazebos, fences, deck brackets, post brackets and mailbox post brackets.
- Unique design: There is a partition at the bottom of the 4x4 post base, which is designed to be completely separated from the ground. Long term use will not cause the wood to rot due to rain. There is a small square box in the middle of base to make it more stable
- Screws & Anchors Supplied : A wrench. 24 x expansion anchors for concrete floors, 24 socket head wood screws for wood floors, 32 Phillips head self-tapping screws for 4x4 post fixation.All screws are inserted inside the base.
- After Sales---If you have any installation questions or other problems. Feel free to contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | AXWHYS |
| Part Number | POST489 |
| Item Weight | 9.44 pounds |
| Product Dimensions | 5.4 x 4 x 5.6 inches |
| Country of Origin | China |
| Item model number | POST489 |
| Size | 4x4 4 |
| Color | Black |
| Style | 4x4 inch |
| Finish | Powder Coated, Metal |
| Material | Carbon Steel |
| Shape | Square |
| Number Of Pieces | 4 |
| Included Components | Necessary Hardware |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount - Image 1](https://m.media-amazon.com/images/I/71+1Ps0EKdL.jpg)

## Available Options

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

## Questions & Answers

**Q: How do I attach a railing to this 4" from the bottom?**
A: Railings run horizontal. If you are referring to a 4x4 post it just drops in and secured by screwing in from base holes. You may need a support bracket from big brand hardware store mounted to your post to support any railing mounted 4 in from base.

**Q: What is the distance between the centers of the holes in the base?**
A: Hello
The distance between the the center of the hole at the bottom of base is 1.7 inch.
Thank you

**Q: What size do you drill in concrete appliction?**
A: Hello
It's 5/16 drill in concrete application.
Thank you

**Q: Drill bit for concrete anchors?**
A: Hello
Drill bit for 6x6 post base is 0.4 inch.
Thank you

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good design
*by T***V on June 21, 2025*

Seems to be well built. I like the design so that bottom of posts are elevated and no chance of being exposed to standing moisture for extended period of time. Like the fact that they provided necessary hardware (I only used 4 of the expansion bolts per post, not six). Directions are adequate and at least they tell you what size drill bit to use. Only using them to support some short 4x4 posts.

### ⭐⭐⭐⭐⭐ Highest Quality Craftsmanship
*by D***N on June 22, 2025*

I did not use these for their normal purpose. I was building a simple, but heavy, mobile workbench and wanted to connect 4x4 legs to solid slab top. These worked perfectly. They are extremely well built and the manufacturer was extremely generous with the hardware included.

### ⭐⭐⭐⭐⭐ 4x4 post bases
*by D***H on June 17, 2025*

The post bases were a perfect fit looked very good and came with all the necessary hardware.

## Frequently Bought Together

- AXWHYS 4x4 Post Base 4 Pcs, (Inner Size 3.6x3.6) Post Anchors, 13GA Thick Solid Steel & Black Powder Coated,Deck Post Brackets Support Deck Base Plate Pergola Brackets Fence Kit Mailbox Mount
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**Shop now:** [https://www.desertcart.sc/products/489718289-4x4-post-base-4-pcs-inner-size-3-6x3-6](https://www.desertcart.sc/products/489718289-4x4-post-base-4-pcs-inner-size-3-6x3-6)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-09*