Larry Spitz wrote:

Has anyone built such a chair mat? Do you have any suggestions for
something that looks good, is durable and has rolling resistance a bit
greater than the MDF surface?

I've never built anything like this, but an idea struck me. Maybe
a good way to get a durable surface is to use some of type of
laminate or engineered flooring material secured to the top of the
MDF. As for figuring out what provides the rolling resistance
you're looking for, take off one of the casters from the chair or
buy a spare one from a hardware store, then take that with you to
a place that has flooring and try rolling the caster on the flooring
samples.

I seem to recall both Sams Club and Costco carry a limited selection
of laminate flooring. I mention this because a single box of flooring
from one of those stores is likely to be fairly inexpensive. You
might also try asking a flooring store if they have any scraps they
want to get rid of or sell for cheap.

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