- - For 4x4 Posts - - For 4x4 Posts - - For 4x4 Posts - - For 4x4 Posts - -
This listing is for individual brackets made to fit 4 x 4 Posts. If you want them for 6 x 6 posts, click here: https://www.etsy.com/listing/708942856
Build your own rugged and heavy duty Pergola, shop/garage/CNC table, or deck with our RiverDriveDesigns, USA made, 1/8" thick, steel brackets! We are the original designer of these brackets, which may be copied, but never equaled! :) We use 1/8″ steel which is thicker than a Quarter and a Dime stacked on top of each other. Also unlike others who just cut and ship steel right off their table, we take the time to hand debur and wire brush both the inside and outside of every piece.
Also great for fixing/reinforcing the one you already have! These are not flimsy/bendable metal. We make them using 1/8" thick steel - a single corner bracket weighs just over 2 pounds - - strong enough to take what you throw at it (or what you throw it at!), but not so heavy where they are hard to work with.
We get a lot of questions about how to build a double pergola (one with six legs) like you may have seen in one of our photos - they use the following:
4 Outside Corners
2 Flat T
8 Bent L Inside Corners
6 Full Post Bases (or 6 of our Two-Piece Post Bases)
Our brackets can be installed using any 1/2" wood lag screws or 1/2" thru bolts. If you use lag screws, we recommend 1/2" x a minimum of a 2.5" long lag bolt, with longer bolts adding more strength. If you choose to through-bolt in locations where possible, go at least 1/2" x 4.5". Bolts/lag screws are not included with our brackets.
Outside Corner Brackets - bent at a 90 degree angle to fit over any 4 x 4 post (3.5" x 3.5"). There are two 1/2" holes on each of the top ears for fastening to cross members and four 1/2" holes on the bottom of the Outside Corner Bracket for mounting to the post.
Flat T brackets - join other parts of your design.
Bent L’s - use where you want an inside corner.
Flat L’s - Flat like the T, but without the third leg.
Double Inside Corner - This is used on an inside corner to support two incoming posts. The holes are offset so that if used on the same post as an Outside Corner, they will not collide.
Full Post Bases - mount a 4x4 to a flat surface. These have 8 bolt holes to lag with up to 3” lag bolts — two on each side. All 8 are offset, so no concerns about them hitting each other. One side is left open to reduce issues with fat/twisted 4x4’s not fitting. When using our post base, tighten to the inside corner to seat post and the tighten the two sides with the open edges and they will clamp down on the post. The ears for bolting down to concrete are set far enough away so drill/tools have easier access. Like all our brackets, these are made with 1/8” thick steel. This is listed as the "One Full Post Base" option when you checkout.
Two Piece Post Base - Same concept as the Full Post Base, but it is made up of two separate halves and has double the feet. We are able to make this more efficiently, so offer them as a pair for less than the cost of the one-piece Full Post Base. If your post is going up against a wall, you will still want the Full Post Base because it has just two feet, not four, so can be mounted closer to a wall.
Half a Post Base - This item is just one half of the Two Piece Post Base, for those who only need one (or another odd number).
Also please note that these ship as raw, unpainted steel. You can either paint them the color of your choice, finish them with a clear coat, or allow to achieve a natural rust patina over time.
***Powder Coated Brackets: If ordering brackets in the black powder coat, please allow an additional 1-2 days for shipping & delivery.***
If you would like to see customer photos (and a video!) of some of our brackets in use, copy and paste the following URL into your browser: https://riverdrivedesigns.com/photos/
(c) 2022 Thermo-Flex Technologies, Inc. - All Designs, Photos, and Text are the Intellectual Property of Shop Owner and are not to be copied without express written permission.
1-3 business days
I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
Just contact me within: 7 days of delivery
Ship items back to me within: 14 days of delivery
Request a cancellation within: 12 hours of purchase
But please contact me if you have any problems with your order.
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.
Please contact me if you have any problems with your order.
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• Change, restrict, delete. You may also have rights to change, restrict our use of, or delete your personal information. Absent exceptional circumstances (like where we are required to store data for legal reasons) we will generally delete your personal information upon request.
• Object. You can object to (i) our processing of some of your information based on our legitimate interests and (ii) receiving marketing messages from us after providing your express consent to receive them. In such cases, we will delete your personal information unless we have compelling and legitimate grounds to continue using that information or if it is needed for legal reasons.
• Complain. If you reside in the EU and wish to raise a concern about our use of your information (and without prejudice to any other rights you may have), you have the right to do so with your local data protection authority.
How to Contact Us
For purposes of EU data protection law, we, Thermo-Flex Technologies, Inc., are the data controller of your personal information. If you have any questions or concerns, you may contact us at firstname.lastname@example.org. Alternately, you may mail us at:
Thermo-Flex Technologies, Inc. 230 River Drive, Cartersville, GA 30120
The stock tread depth is made to fit the most common stair step which is 10" deep and 1" thick, but we can make them more/less deep to fit your needs! If your stairs are more than 1" thick, start a conversation and send us a picture, we likely have a different bullnose we can use.
Yes! Make sure your stairs are clean and dry before installing your TRUE Bullnose™ stair treads.
Yes, just let us know what you need!
Yes! We do most custom work at the same prices, just start up a conversation to get started!
Nov 18, 2021
Great item I’ll probably buy them again for another project
Aug 13, 2021
Jul 8, 2021
Everything is as it should be, great quality and prompt shipping
Jun 30, 2021
Jun 30, 2021