How Thick Are Exterior Walls. Residential walls generally take either 1/2 or 5/8 drywall on one or both sides, so your wall thicknesses will vary on whether or not they are interior or exte. The primary factor that drives wall thickness today is insulation ratings.
The t&g is approximately 3/4 thick.
(interior, exterior wall of house, exterior landscape/utility wall) 3.) what is the wall finish? Host jeff wilson explains how interior walls form the rooms and spaces inside the house, and how framers use the blueprint to see where the interior walls will go. How thick are the exterior walls? By playing with hues on the door, window sashes and exterior walls, you can dramatically change the look of your home.