Rift Sawn White Oak is milled in an effort to reveal straight, linear grain only.  This cut may include medullary rays, grain turnover, and edge sap.   
White Oak.  Rift Sawn. Smooth.
Solid or Engineered.  3/4" x 4" x 2-12'+.  Select & Better. 
T&G.  End Matched.  Micro-Beveled. 
Bare.  Poly Finish.