Installing maple planks on living room wall (accent wall)

Hey there,

Here's some questions about installing some maple planks to make an accent wall in my living room.

This is the look I'm after: https://secondstreetfloors.com/wp-content/uploads/2020/03/Shiplap-Wall-Room-Section.jpg

I bought some 180 sq. ft. of real maple planks (not laminate or anything engineered) from a local guy. The planks are 5 1/4" wide, 6ft long, and 1/2" thick.

Some questions:

1. My living room wall is not perfectly flat. Putting a 4ft level...

Installing maple planks on living room wall (accent wall)