| SOLID |
Length |
Minimum length is 12", Avg. >= 3' or 36" |
Some short board is only 6" or 8" in length and Avg. < 24" |
| Grading |
1. Clearly specify grading on the label of each box. 2. Meet and exceed industry standard |
1. DO NOT specify grading. 2. Mixed of lower grade boards but labeled higher grade, like use 30-40% of #1 com. but labeled as Select & Better |
| Sap Wood |
No Sapwood allowed in Prime grade, and 30% maximum in Standard grade |
Many sapwood mixed in all grade |
| Milling |
4 sides T & G and beveled, easy installation with precision milling |
Not strait board, different thickness in one single board (causing up and down / hard installation), or different width in one board (causing gaps) |
| Moisture content |
6-9% |
10-12% (could causing cupping / gaps/ face-checking) |
| Plywood core and glue |
3 plies and 9 plies, pressing followed highest industry standard and using eco-friendly glue (CARB Certified) |
Lower quality plywood could cause de-laminate and airborne toxic |
| Engineered |
Cutting |
slice cut / saw cut |
rotary peal (may cause face checking) |
| Top layer |
3mm or 4mm (could be re-finish/sanding 2-3 times) |
0.6mm, 1mm or 2mm |
| Finish (coatings) |
11 times |
5 or 7 times |
