Beadboard - Nails or Staples ? - JLC-Online Forums- nail gun for beadboard ceiling ,26/2/2011· Re: Beadboard - Nails or Staples ? if you use 18 ga and set the depth right, you won't split the tongues. Just nail at an angle like hardwood flooring. I wouldn't recommend staples because they are not nearly long enough and the crown creates a split. Adhesive is a ...Best Nail Gun for Shiplap. What Size Nail and Nailer?Today, shiplap is not only applied to the exterior to protect the home from the wind and weather, it is now being used as interior decoration that helps to accent walls and the ceiling in some cases. Recommended Nail Gun. Model: Dewalt DWFP12231. Type: Brad Nail Gun. Nail Size: 18-gauge, 5/8-Inch to 2-Inch long nails.