Do any of the cross-rails bolt to the bed sides? If so, the angle strips need to leave room for the bed wood between the cross rails and the strips. Remember, take into account any milling done on the edge of the boards under the strips.
Sorry I don't have specifics, but that's the geometry of the situation.


Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.