Lattice and 2”x4” (Redwood City)

I’m in search of a piece of redwood lattice (12”x76” or larger) and a 2”x4”x76, in redwood or pressure treated wood. Need to fill the gap pictured in photo.

They can be used, as long as they still are sturdy.

Hate to buy 8 feet length of both items, if possible.

Thanks