The glass panel of stile and rail wood door will bring light into the interior space. Commercial wood panel door with custom made lite kits and glass/observation window is both functional and aesthetic to provide light to a room. It can also ensure safety as well to see through the lite/observation window if there are any uninvited people. Una Doors offers a wide collection of door glass inserts for interior wood panel door in China, including clear glass, laminated glass, textured glass and frosted glass etc.