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🔧 Build with Confidence: Your Posts Deserve the Best!
The Deck Post Base Post Mounting Base is a robust and versatile solution for securing 3.5x3.5 inch wooden posts. Made from durable 14-gauge steel with a rust-resistant black powder-coat finish, this post bracket is perfect for a variety of applications, including railings, mailboxes, and garden fences. Easy to install on existing concrete, it ensures your outdoor structures remain sturdy and stylish.





| ASIN | B0784VTJC9 |
| Best Sellers Rank | #89,982 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #819 in Hardware Brackets |
| Brand | MTB Supply |
| Brand Name | MTB Supply |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 788 Reviews |
| Item Dimensions L x W | 6"L x 6"W |
| Manufacturer | MTB Supply Inc |
| Manufacturer Part Number | GSPB3644 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | GSPB3644 |
| Number of Packs | 1 |
| Number of Pieces | 1, 6 |
| Product Dimensions | 6"L x 6"W |
| Style | Garden |
| Style Name | Garden |
| UPC | 713049954691 |
| Unit Count | 1 Count |
G**R
6x6 is for a 6x6
This review is to clear up the confusion on the size.... People have been asking what size post fits the 6x6, and people are saying that 6x6 is the measurement of the base. Well that is totally wrong. 6x6 is for the post size. Which a 6x6 measures 5-1/2” x 5-1/2”. I didn’t measure the base, but the 6x6 is for a 6x6 and the 4x4 is for a 4x4. Hope this helps. As far as the quality, they are pretty darn good. They are strong and the paint is a very good quality. Almost feels like powder coated. I purchased these to replace a rotting 6x6 in my shed. I bolted the 6x6 to the concrete next to the rotting one. It worked perfect.
A**E
Does the job
Great product to attach my pergola legs to the concrete pad. Very happy with the product.
A**R
Just installed 8ft 6x6 post into one
Holes for anchors to concrete are a bit below 7/16. I drilled mine out so I could use 1/2" anchors in fresh footings. Going through metal was easy enough to do with the right bit but the plate was thick and decent quality. I had planned to put bolts through the sides and the 6x6 but without them a post stands upright no issues when tightened with the 2 bolts in images. 6x6 nominal wood (5.5"×5.5" actual) fit in these but I had to round the corners for a bit of ease dropping this in. Only have just done installation but they seem decently build and will last. 4stars due to the bottom plate could be a little bigger to accommodate 1/2" clearance holes which appears to be concrete anchor standard sizes.
A**R
What an incredible product this is!!!
This product was PERFECT for us. It provided a very strong base o hold our 4x4's for the railings. We could not have been more pleased with this product. We used 5/16" lag bolts with washers to secure brackets to the 6x6's. It would take a pack gorillas to rip it out. In addition, I think they look GREAT! The quality of the baked on paint will last for years and years. There was another one available at Home Depot -BUT it was more than twice the cost- didn't look as good and I had to wait a week for delivery. I ordered these on Friday afternoon and they were delivered in my garage Saturday afternoon. Excellent product, service, and price.
L**N
Great Product and Buy, They deserve 5 Star
Others is Charging way to High , this Product is not only Very Sturdy, and Fits right on a 4x4, But is Really Great for the Price, I Bought more even though I don’t need it now, but maybe later, Just because they kept their Price Down, and on top of That, A Heavy piece of Merchandise that’s very Sturdy, I’m impressed. Thank you.
E**D
Good product
This item is exactly as described. It fits the post I used it on perfectly. The welds seem to be top quality. The paint is not chipping/pealing. The metal has not bent due to stress on the post. I like the design and would purchase this again if needed.
B**N
Solid piece of equipment
Just what I needed, strong enough to hold down my Christmas fence. Slightly larger than a standard 4x4 post but cinches tightly by tightening. Great for places where digging a hole for pole is not optional.
E**0
Not bad for the money
I ordered these to use as post bases on a pergola I built on some newly poured concrete in my backyard. I chose these for the reason of being able to anchor after the build. I used 3/8 wedge anchors and they fit just fine with a few taps. They seem very sturdy and well built and fit the 6×6 post just fine.....except for this one base. I checked the post to make sure it wasn't swollen or bowed. Post was fine I guess it was just a manufacturing defect. So I had to get some longer carriage bolts to close that gap up. Ended up being ok, but I was a little irritated at the fact that 3 fit perfect and this one was defective. I could have returned the set and gotten them replaced but I was on a short time frame to get my project finished. I gave it 3 stars for it still being a good product and actually doing the job, but I took off for the quality control issues. But overall not a bad product. And I would recommend them to anyone doing a similar project.
F**A
Calidad
Excelente producto, el unico detalle que tardo un poco en llegar pero la calidad es buena.
Trustpilot
3 days ago
2 weeks ago