hardboard notch protection?

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Forum topic by lumberames posted 06-16-2018 04:07 PM 678 views 0 times favorited 9 replies Add to Favorites Watch
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2 posts in 826 days

06-16-2018 04:07 PM

Topic tags/keywords: question

hi. Need some advice on protecting a notch I made (btw: poorly) on a 1/8 inch piece of hardboard. Per the attached image I want to add/attach some sort of protection to each side of the notch. I could simply cover them with tape but that is pretty lame. I’m looking for a better option(s), maybe some sort of metal slide that would squeeze onto each side of the notch? I have looked around at Home Depot but I haven’t found a solution.

9 replies so far

View John Smith's profile

John Smith

2646 posts in 1008 days

#1 posted 06-16-2018 04:29 PM

how many do you have to do??
how much force is in the notch??
the photo is great – more information would get you accurate feedback.
I am thinking go beyond HD and go to your local Auto Parts Store
and check out the plastic edge trim for car doors.
it comes in a dozen colors if you want it to be pretty.


-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View 000's profile


2859 posts in 1745 days

#2 posted 06-16-2018 04:36 PM

Yes, where do you live?
What is the humidity?
What kind of glue do you have on hand?
What type of tools do you have?
What color does it have to be?

That being said,
You might be able to use plastic u-channel made for the edges of shower wall panels.
It would be easy to find at any of the big box stores.

View BobAnderton's profile


311 posts in 3636 days

#3 posted 06-16-2018 08:17 PM

Many different kinds of push on trim here.

Also search for “J Channel Screw On Trim” if you want to face screw the pieces on

Otherwise, you could cut a pieces of sheet aluminum to the shape of your plastic example and epoxy it to the face of the hardboard

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

View AlaskaGuy's profile


5972 posts in 3155 days

#4 posted 06-16-2018 11:22 PM

You should be able to find “FRP” or “Marlite” trim at home depot.

-- Alaskan's for Global warming!

View lumberames's profile


2 posts in 826 days

#5 posted 06-18-2018 01:44 AM

Thanks everyone for the info and suggestions. Below is a group of photos that show the ‘rear panel’ with several cables from the notch opening. Removing / Attaching the panel will be a common occurrence thus the reason for protecting the notch. The suggested trim solution won’t work because the panel rests flush. My current focus is on a mending plate solution. Given the notch size (per the pictures, small), i’m looking around for mini mending plates. Image B shows how I would place them.

stay tuned.

View OSU55's profile


2657 posts in 2835 days

#6 posted 06-18-2018 11:59 AM

Just put some shellac or poly on the hardboard on the edges and both sides. The hb will drink it up. It will probably take 3-4 coats to infuse enough into the hb. Shellac is better since it will dry and cure faster.

View 000's profile


2859 posts in 1745 days

#7 posted 06-18-2018 12:56 PM

Get a couple of fender washers and hack saw a notch out of the side of them,
epoxy to the hardboard.
Didn’t know how small the notch was in the original pic.

View builtinbkyn's profile


3010 posts in 1786 days

#8 posted 06-18-2018 03:03 PM

If this is the back of a cabinet and won’t be seen, just adhere a pice of plywood/hardwood to that location on either side of the opening. That will stabilize and prevent it from breaking apart. You can make it look like a finished piece that was part of the original design. Heck thinking about it further, install a wire grommet and be don’t with it. This isn’t a really complicated issue or fix.

-- Bill, Yo! Brooklyn & Steel City :)

View wood2woodknot's profile


108 posts in 2819 days

#9 posted 06-19-2018 12:56 AM

I have used the plastic edge “clips” that come with report covers for a number of edge guards: for my saws, for panels, etc. I made some permanent ones for a similar project by coating the edge of the hardboard with contact cement then sliding the binding clips over the edge of the hardboard. Very cheap solution.

-- ajh

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