squash blocking

[busted knuckles]

between joists for ridge beam support. stand lumber on end? or on edge? Thank you in advance.

[Redoverfarm]

between joists for ridge beam support. stand lumber on end? or on edge? Thank you in advance.

Depends on your application.  This might help

https://www.google.com/search?sourceid=navclient&aq=&oq=squash+blocking&ie=UTF-8&rlz=1T4TSNA_enUS401US438&q=squash+blocking+rules&gs_l=hp..1.0l2j0i22i30l2.0.0.0.10244...........0.57zT5X33KPQ

[Don_P]

I'm assuming these are carrying a post from ridge to subfloor and are standing on end under the subfloor and running down to a girder or wall. If so stand them up on end, cut a hair longer than the joist is tall... they take the point load squash rather than the I joist. Under sliding door or similar sized header supports as well.