Update: I talked to my lumber yard guy, dimensional lumber and plywood are starting to come down, manufactured building products (windows, engineered wood, roofing, etc) are not expected to come down in price this summer.
I got a new lumber package quote for my next project (2800 sf 4bd 3 ba) and it went from $82,000 (April) to $102,000 (June).
My concrete guy said a number of folks are postponing building.
This is in Oregon.
Numbers from the latest quote:
1/2" cdx plywood $90/sheet
5/8" cdx $94/sheet
2x6 stud length (103 5/8") $22 per stick