There are router bits to make the slat wall slot without having to make separate pieces. My problem with the MDF slat wall material, and I have it in my shop, is that the MDF can come apart. I have seen aluminum channel that works with slat wall hangers that you then cut the wood to go between them. I think if money was no object, that is the way I'd go. But I do like being able to scoot a hanger bracket down just a tad so the next new object clears those around it. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3