Shelf brackets source

Hi all! Wondering if anyone here has ever seen "H" shaped brackets? We have a pantry with odd shaped shelves, which are made by joining different shaped shelving boards together. Where the shelves are joined in the middle of the run, where there isn't a spot to get any support from underneath, the builder used some type of "H" shaped brackets in-between the two boards to seam them together. I though perhaps the builder just took two pieces of "U" bracket and riveted them together, but upon close inspection, I can see that they are a single piece of metal, shaped like an "H". The "H" brackets are about 1-1/2 inches long and about 3/4 inch thick (the thickness of the pantry shelf wood). The "H" legs of the bracket are about 1/2 to 3/4 inch deep. part of the The builder put several along the seam where the two shelf boards meet and then screw top and bottom on both sides of the seam. Very strong. Want to add a couple of shelves to the pantry but need the "H" brackets. Checked at my local hardware store and they have no clue and I can't found anything on the internet. Hoping someone here can tell me where to get these brackets, and/or post a link to a product that can be used instead. Thanks in advance for all of your help and advice!

They are called plywood clips.

https://www.lowes.com/pd/Simpson-Strong-Tie-50-Pack-Plywood-Clip/3047817

Snoonyb said:

They are called plywood clips.

Click to expand...

Do you know of any type of bracket or clip that could be attached to a wood table to hold a vizio soundbar for my tv?

Not off hand, but if you have a PDF for it, we could probably come up with recommendations.

HI and thanks for the link. It's not exactly like what I have now but it should work. In looking on the internet I did find something being sold by Alibaba that looks similar (see photo) to what I have but our bracket looks a little thinner.

That's what plywood clips used to look like, 40yrs ago.

Just my luck! The Guy who built the pantry shelves in our home probably was someone who had these old clips in his tool box. Oh well, the new ones should work just fine. Now my dad was an old time self-taught finish carpenter who used to keep a plum bob and level in his car no-matter where he went. Tilted corners or sloppy trim work used to drive him nuts. He's long gone now but me using different types of plywood clips, like I am going to do, would have driven him bat-$*#! crazy. You folks have been great - Thanks again!

Google "Aluminum H extrusions" and follow your nose...

BINGO! I followed the advice to google Aluminum H extrusions and hit the mother-load!. Thanks again!