... 1> our door is 100 solid wooden core, 2> frame is 100% wooden too. 3> OEM ... is ok, 4> easy to install high quality solid wooden door1. Standard specification: A)wall hole size: 600/700 ... 21 51561638Mobile: +86 137 8892 62235. Color: White oak, maple, cherry, teak, red pear, red walnut, Black walnut, steel walnut, etc ...