Skyline
2x DNR Deep Notch Floor Joist Reinforcer Repair Kit
2x DNR Deep Notch Floor Joist Reinforcer Repair Kit
One side restores full strength — interlocking plates assemble around utilities
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The Skyline DNR Deep Notch Joist Reinforcer Repair Kit (Patent Pending) consists of two interlocking G90 Galvanized steel plates. Restores the strength of Floor Joists that have been compromised by large notch cuts from the top down (compression) or bottom up (tension).
The DNR Kit allows for the passage of plumbing, electrical, or other utilities. All fasteners and T25 Torx driver and drill bit for drilling pilot holes are included in the kit.
Notch Sizes:
2x 12 (1.5" x 11.25 x 23.75) - Notch can up to 6" wide x 7.5" high
2x10 (1.5" x 9.25 x 23.75) - Notch can up to 6" wide x 7.5" high
2x8 (1.5" x 7.25 x 23.75) - Notch can be up to 6" wide x 5.5" high
2x6 (1.5" x 5.5 x 23.75) - Notch can be up to 6" wide x 4.0" high
- Drill (Electric or Cordless)
- Construction Adhesive
- 5/32" Drill bit (included)
- Torx T25 Drive tip (included)
- "C" Clamps (recommended)
Returns, Refunds, and Shipping Policies
With the exception of weekends, orders received by 3pm eastern are shipped the same day. Regular ground and expedited shipping options are available at checkout.
Without Joist Reinforcer:
1. Notches are only allowed in the first 1/3 from each end of the Joist.
2. Notch depth cannot exceed 1/6th of the depth of the Joist.
3. Notch width cannot exceed 1/3rd of the depth of the Joist.
With Joist Reinforcer:
1. Notches can be placed anywhere along the length of the Joist up to 12" from supporting members.
2. Notches can be up to 4" deep on a 2x6", 2x8", on 2x10's and 2x12's.
3. Notches can be up to 6" wide.
Installation Videos
Notched Joist Repair - DIY
Repairing deep notches in your floor joists may seem like a daunting task, but we have designed and manufactured our products to be friendly to both contractors and do-it-yourself homeowners. We supply all the fasteners and bits you need - just use your own drill or driver!
Helpful Resources for our joist repair products
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Technical Bulletin
Technical BulletinFind metallurgical information, engineering examples, fastener properties and more in our technical bulletin.
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Product Kit Includes:
Installation Directions -
Tools Needed:
- Screwgun and Drill (Electric or Cordless)
- Construction Adhesive (optional)
- 5/32" Drill bit (Included)
- Torx T25 Driver tip (included)
- "C" Clamps (may be useful)
What size notch is allowed in a joist with and without a joist repair plate?
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What building code says about notches in floor joists (without a reinforcer)
- Notches are only allowed in the first 1/3 from each end of the Joist.
- Notch depth cannot exceed 1/6th of the depth of the Joist.
- Notch width cannot exceed 1/3rd of the depth of the Joist.
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With a Notch Repair Plate
- Notches can be placed anywhere along the length of the Joist up to 12" from supporting members.
- Notch can be up to 3" deep on a 2x10 or 12.
- Notch width can be up to 5" wide.
Returns, Refunds, and Shipping Policies
With the exception of weekends, we make every attempt to ship orders within 24 hours of when they are received. Some orders that are placed early in the day may ship that day while others may not. If your project requires faster service please call and we will do our best to accommodate your needs.
Please include mobile phone and email for tracking via text and email. We use your contact information to provide you with updates on your orders.
Other Frequently Asked Questions
Do you offer quantity discounts?
If you would like to purchase a bulk order of our joist repair plates, please call us at 540-589-9669
What countries are joist repair products available in?
Available in the US, UK, Canada, and France. For availability in other countries please call - 540-589-9669
Who do I contact for questions?
Please email dan@joistrepair.com
Can I DIY my own joist repair?
You definitely can! Please review our installation videos for the steps on how to install our structural joist repair plates.
What is the difference between a deep and shallow notch on a joist?
The depth of the notch determines whether you need a deep or shallow notch reinforcer to repair your damaged joists.