Baltic birch is more expensive than the regular grade stuff. So a sheet of ¾” thick Oak veneer plywood with a pine core, interior grade, from Lowes is about 35 US dollars where a similar sheet ...

This makes a strong, rigid, lightweight sheet with excellent screw ... it’s a good choice for long shelves. Baltic Birch and Appleply are top-notch veneer core plywoods, which you’ll only ...