Sihnman 10 X 3 Straight Steel Flat Plate (2 pc) with Powder Coating as Mending Plate, Joining Brackets, Connecting Brackets, I Strap. Metal Plate with Holes, Straight Flat Plate for Truss framing

This item is exactly what I was looking for to protect my painted cabinet from the stove. I got a special drill bit to make the holes to screw it to the wall - normal bits will probably crack the panel. This took me under 10 minutes to install.

Exactly what I wanted!

The thickness is spot on. The actual dimensions are a 16th shy, which is the only reason I knocked a star off. Thats probably the industry standard but Id prefer not to have to buy an oversized piece and cut it down to get exactly 24x12. Ill just scale my project sightly.

Used a fish tank lid.