Which wood for workbench topper?

[Ian]

My current workbench has 2 x 18mm sheets of MDF, with a 3mm hardboard topper (PU varnished, to help prevent problems with staining when working with liquids). The idea was that I'd change the hardboard when it gets all banged up - but that's happening a lot quicker than I'd hoped for, so next time I'll try something a little different.

What are you using for your workbench topper material?

 

[dovetail]

I use two pieces of 7/16 OSB stacked. Idea was something sturdy, economical, and easy to replace. I've had the same two pieces on for about 5 years so far. I don't worry about stains though I use a separate area for finishing and top coats (sprayed) on most projects.