Interesting Request for a Tile

Give use an example and I will make you one

Stainless steel with a diamond pattern and some puffiness in the areas inside the diamond embossing.

Thanks for trying.

here, try this link: http://64.235.35.226/hotdogs/cart.jpg

Ah, finally some good reference. Thanks.
As far as i can tell, the squares themselves are well-defined, but the heightmap is rounded, not square. Is that more what you're after?

the shape is more like this, but in metal colors:

I think I'm closer the the "correct" shape with this version. I can't seem to get rid of the final blur step to get rid of the sharp edge artifacts, this results in a less square corner. I'm not sure if that's an issue though.

Like this?
(I also tightened up the corners.)

yup, that's very close. look at fred's last picture at the middle left of the image, the side panel of the upper part of the cart. that's what i'd shoot for. yours still looks a bit too high in the height. that metal is actually pretty flat on the cart. i know it's tricky to get the reflection without adding the apparency of more height but you really are close.

It's closer now.
I'm having a hard time getting the height down without it getting blurry. The reflection blur is at 0 and the Surface Height is at 1 in this preview.
It seems to be a function of FF itself, so I'm not sure what else I can do without faking the reflections outright.

you're so close i can practically feel it. since you said it's a surface type filter, try cutting the whites on the height map down. maybe with a threshold or levels component. that shld knock the whites down and flatten things a bit. also, check your hdri lighting. the hdri can sometimes impose a false height to things. try different ones.

if you look at fred's last posted image again, on the left side, middle, down on the middle of the cart, the little part that sticks out and has trays in it, that panel on there shows the metal without reflections. you might try for that, instead of the higher reflected parts. that might make it easier to drop the height apparency.

Updated with the latest version. I added better crumpling and dents.
http://www.filterforge.com/filters/7412.html