Good source for pre finished plywood Seattle and North?

[Larry Rasmussen]

Hello group and thanks if a local member can share their experience. I framed in a passageway between dining and living room area installing framework for two pocket doors in the middle. The dining room is finished but I need a couple panels for the living room side. Perhaps maple, am open. I would like to make sure I'm on base shopping for plywood paneling. I have some various cabinet projects I'd like to try pre finished ply for as well, at least the interior. I'd like to get some walnut ply as well, finished or not.

I'm in Shoreline north of Seattle. I looked at Crosscut lumber in Seattle proper. I've been told at my local Dunn Lumber that the Dunn main inventory for plywood is in the Lynnwood store. I've used Midway Plywood in Lynnwood/Mukilteo. Am I missing any good sources in the North end?

Thanks,
Larry R.
Seattle