Pine F/J Edge Glued Panel	Pine Solid Edge Glued Panel	Spruce F/J Edge Glued Panel	Spruce Solid Edge Glued Panel
A-A Surface Quality Surface A: There are no marks or signs on the surfaces that can be considered as defects. (Snag, resin, crack, sap, etc.)
A-B Surface Quality Surface A: There are no marks or signs on the surfaces that can be considered as defects. (Snag, resin, crack, sap, etc.) Surface B: There are very few knots and moires on the surface, there may be a very small amount of resin sac.
B-B Surface Quality Surface B: There are very few knots and moires on the surface, there may be a very small amount of resin sac.
B-C Surface Quality Surface B: There are very few knots and moires on the surface, there may be a very small amount of resin sac. Surface C: In addition to grade B on the surface, the amount of Black knot is very high, there is sap, there are resin sacs.
C-C Surface Quality Surface C: In addition to grade B on the surface, the amount of Black knot is very high, there is sap, there are resin sacs.