12″ FrameSaver Rot Repair Kit

(13 customer reviews)


FrameSaver Bottoms provide your door frame with lasting protection and uncompromised durability.

  • For Inswing Doors Only
  • 5° Angle for Inswing Sill System

12″ FrameSaver Rot Repair Kit Installation Instructions

Jamb Width

4-9/16", 6-9/16"

Package Size

1 pair, 5 pairs


Return Policy: 60 Days



12″ FrameSaver Rot Repair Kit: FrameSaver Bottoms provide your door frame with lasting protection and uncompromised durability. Replace the damaged portion of your door jamb with the FrameSaver Jamb Bottom and never have to worry about door frame rot again.

  • Features a composite base that is connected to wood in a finger-jointed pattern.
  • FrameSaver’s composite bottom never warps, wicks, molds, or rots and even resists insects.
  • Delivers lasting maintenance-free protection.


What’s included:

12″ FrameSaver Rot Repair Kit:

  • (1) LH 12” FrameSaver Bottom
  • (1) RH 12” FrameSaver Bottom

Where does it go?

  • These pieces are fastened to the bottom of the door frame, adjacent to the sill system

What does it do?

  • The composite bottom, which is finger-jointed to the wood, protects your door frame from warping and rotting
  • These bottoms finish and paint like wood, allowing you to match this piece to existing jamb finishes.

Product details

  • Available in 4-9/16” or 6-9/16” widths to match the most common jamb widths
  • “Retail Ready Pack” includes 5 pairs of 12” Jamb Bottoms and retail packaging for you to display all 5.



Warning: Drilling, sawing, sanding, or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other personal protection. For more information go to

Reviews (13)

13 reviews for 12″ FrameSaver Rot Repair Kit

  1. bettyhouser

    Was so glad to find these kits. My husband has been trying to repair our old, rotted wood door frames for a while, but was only able to find full-size door frames or full composite. We didn’t want to pay for a full frame, as only the bottom few inches were rotted, and we didn’t want full composite. These pieces were the perfect size for the job and we are very pleased.

  2. Larry

    These are a quality product and great idea! They included clear instructions for installation with an existing threshold. Wish there were instructions on how to install in conjunction with a new threshold. I also wish they were like 9 or 10 inches tall as I cut the rot out of my door frame a little too high.

  3. Gary L. Kaufman

    It was as as advertised. The instructions were clear but you need to have some skill in woodworking to cut out for the threshold section. Remember measure twice and cut once as there may not be enough of a stud to make a second cut. It is true that it could be longer in some cases. We will see how it does in about 15 years!

  4. Joe

    Glad I found these kits Never have to worry about rotted door frames again. I’d like to see complete door frames. Fairly easy to install, really like this product.

  5. Ross

    Well done. Arrived quickly, easy to install and looked great. Great price also

  6. JerryK

    The perfect fix for a rotted basement door frame. I cut off the bad section with a plunge cut saw and used construction adhesive to bind the new section as I did not want to try and drive nails into the cement blocks. Came out great. Will definitely use these again as needed.

  7. Stephen Porter

    I am glad I found your parts. I have a walk in basement with a French door, after cutting out the bad spots and with no inside trim I was also able to remove the threshold. After cleaning up the area I was able to put it all back together. I sanded the joints and and painted it up. The whole job took me less than 2 hours.

  8. Mike

    Happy with the quality and the fast shipping! This was a perfect match for my door jamb and with a little paint (and a replacement threshold also from!) it looks like new again!

  9. Wilson

    Great product, changed out the bottom of my door jambs in about 1 hr. These should last 4-ever. They should partner with door manufacturers to install these in to the original door frames. Thanks

  10. BR

    Excellent product. Very grateful to find this item so I didn’t have to patch or completely replace door frame. The slot that the weather stripping goes in is different on my door then on this replacement item but I think I can make it work by replacing the weather stripping around the door. We also put down a new threshold and the whole door looks like new. Thanks so much!

  11. Perry Corbett

    Better than I expected, product was easy to install, and looks fantastic. I will definitely be telling and showing all my friends what a great product this is

  12. Chris S

    Worked great. Should last as long as the house. Can’t buy these at the big box orange and blue stores, don’t know why.

  13. Jeff Sharpe

    Exactly what I needed. My out-swing door and threshold required a different cut, so BetterDoor accommodated my needs and provided an uncut pair so I could customize them myself. Worked out great, it’s a terrific product.

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