Structure

core of different cut sizes

Frame Components

stiles:HVA, HVB or solid wood
top rail:VV, HVA or solid wood
1.bottom rail:solid wood
2.bottom rail:  VV

Core

typesolid boardVL
tube board RL
 
sizes side:135 x 1880 VL
top:135 x breit VL
bottom:lang x 350 RL