Weatherboard face panels code
1925 x 300 Reverse as cast WAL 192
2.0m bay with Spar finish reverse WAL 192*
125 x 125 posts    
Smooth face
1830 x 305 Reverse as cast GBS 305
1.905m bay with Spar finish reverse GBS 305*
125 x 125 posts    
Rock face
1830 x 305 Reverse as cast GB ROC 305
1.905m bay with Spar finish reverse GB ROC 305*
125 x 125 posts    

* for Spar finishes add suffix
Black/white - SBW, Pink/white - SPW, Yellow - SY