stile & rail: using soft wood paulownia edge glued fjb with 3mm mdf 
                                and surface with 0.6mm red oak   veneer
panel: 3mm mdf with 0.6mm red oak veneer
sticking /lipping: solid red oak
edge band: solid red oak
sanding by 240 grit
size: u.s. standard, 18"~36"x 80"x1-3/8"
m.c. 8~12