Reply by GrandpaLen

Steve,

Verticle should be fine if it is supported full length in back and it is kiln dryed, provided you don’t have high humidity in your shop.

Any lumber that may have a higher moisture content, of course, should be stickered, stacked horizontally and weighted across the top.

Work Safely and have Fun. – Grandpa Len.

-- Mother Nature should be proud of what you've done with her tree. - Len ...just north of a stone's throw from the oHIo, river that is, in So. Indiana.