Block Board:
1. Face and back: Okoume, Bintangor
2. Core: poplar, pine, fir
3. Glue: MR, WBP
4. Size: 1220x2440mm, 1250x2500m, 3'x7'
5. Thickness: 12mm/15mm/17mm/18mm
6. Grade: BB/BB, BB/CC, CC/CC
7. Physical standard:
    a. Moisture Content: less than 12%
    b. Adhesion: (water boiling proof) 4 hours in boiling & 20 hours drying at 60 degree centigrade, 4 hours in boiling again;
                           (Moisture Resistant) 2 hours boiling & 3 hours drying at 60 degree centigrade; both min. 0.7N/mm2
    c. Thickness Tolerance: +/-0.5mm
    d. Allowance Tolerance in Width & Length: 2.0mm
    e. Diagonal Allowance: Max. 3.0mm
     f. Warp: 0.1% (1.22mm against 1220mm width, 2.44mm against 2440 length)