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Joist Repair Plates for notches and holes

Repair floor joists, rafters, trusses and studs with our repair kits

Notched joists and non-reinforced holes can cause serious structural problems. Damaged joists are unsafe and expensive to repair, but our hole repair plates and notch reinforcement kits allow you to quickly and affordably restore integrity to almost any floor joist. Our reinforcer plates are made of 10 gauge steel and exceed the strength of the original joist. They're not just for repairs either - our products are perfect for new installations when planning utilities, keeping them out of the way and perfectly routed.

Featured Joist Repair & Reinforcement Plates

The strongest joist reinforcers made

Notched and over-drilled joists are unsafe and expensive to replace. Our patented 10-gauge steel reinforcers restore full strength and let you route plumbing, electrical, and HVAC right through the joist — code-compliant, and far faster and cheaper than sistering or replacing. Everything ships same day, backed by real phone support.

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See what our customers are saying about our joist reinforcement products

Great product with great customer service and technical support!

"Great product with great customer service and technical support! If you're working on an old house and run into joist issues, this is a must-have problem solver. Highly recommend the products and the company."

Gary

September, 26 2023

Strong Repair

"I didn’t know what I was going to do to fix the joist that was cut. Found this on line hoping it would work. Dry fitted it, looked good so I installed it in place. It went around the pipe and water lines perfectly. Metal is VERY thick and strong. Worth every penny"

Mark B.

February, 19 2023

30 Year-old "swisscheese joist" is finally strong!

"Well-made product that solves a difficult problem. Makes me completely confident in the structural integrity my re-plumbing project. Now I can cover the ceiling in drywall and never worry that I'll need another tearout! Wish that the original builder had done it right 30 years age, but now it IS done right-- Thanks!"

William V

July, 18 2023

This was the perfect fix for a joist...

"This was the perfect fix for a joist where the plumber had notched the top of the floor joist for the bathroom tub drain. This house was on a crawl space and no easy way to get another joist into the crawl space to sister it, also there was other plumbing in the way, so this was just what I was looking for!"

Ken

July, 15 2023

Great easy to install product

"Installed perfectly and removed my temporary support wall I had under my floor joist that our contractor broke code installing plumbing through"

Brian

January, 20 2023

Phenomenal product to satisfy county inspector!

"Phenomenal product! I needed to run dryer pipe through my 2x6 wall requiring holes through 4 studs. No one makes a stud shoe that allows for a 4" pipe. Your product was certainly overkill for my application as it was a non-load bearing wall but I would be removing over 60% of stud, thus requiring some form of bracing. Your product was the only item I found that would satisfy code and my county inspector's wishes. Thank you!"

Greg C.

January, 11 2023

Just what I needed for repair needed for damage caused by plumber.

"Just what I needed! 100 yrs old cast iron was run thru joist. Plumber took it out, I was pressed to gusset the area quickly but there was duct work in the way. My gusset was lame and didn’t pass inspection. Of course there is now new plumbing plastic waters and electrical and a failed inspection. Joistrepair.com for the rescue. I bought two so I could show the inspector one that he could hold and touch and I could show it to the other folks at our company. Passed inspection and I feel better about everything."

Peter W.

February, 02 2022