Hardness Chart:The Hardness Rating Chart is composed of numbers from the Janka hardness test, an industry standard in which the numbers represent the number of pounds required to press a 1/2" steel ball halfway into a piece of wood. Call or e-mail for information not included.
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Species |
Hardness Rating |
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| Grade | ||
Tiete Rosewood |
2800 | |
| Board Size | Chichi Pate' |
2670 |
Brazilian Cherry |
2350 | |
| Packaging | Lyptus |
2228 |
Santos Mahogany |
2200 | |
| Installation | Padauk |
2170 |
Merbau |
1925 | |
| Milling | Hickory |
1820 |
Hard Maple |
1450 | |
| Finishing | Australian Hard Cypress |
1375 |
White Oak |
1360 | |
| Care | Ash |
1320 |
Beech |
1300 | |
Northern Red Oak |
1290 | |
Birch |
1260 | |
Antique Heartpine |
1225 | |
Southern Red Oak |
1060 | |
Walnut |
1010 | |
Cherry |
950 | |
Longleaf Yellow Pine |
870 | |
Grade is determined mostly by the face appearance and average length. National (and, more recently, International) grading standards or rules are established by the National Oak Flooring Manufacturer's Association (NOFMA). All of our flooring is manufactured to NOFMA standards or better, and we would be happy to show you the NOFMA rule book for detailed grading explanations.
Following are some condensed grading rules in plain language for assistance in selecting your new wood floor. Please remember that wood is a natural product with a variety of color and figure being an essential part of its beauty; therefore, grading rules provide us with a range by which to compare flooring appearance. Average lengths are for 7' bundles. Our 2 1/4" strip flooring is sold in 8' foot bundles, which adds 1/4" to the average length of each grade. Also, we sell select and better in this category as opposed to just select.
Clear Grade |
no knots, average length of 3.5ft, color tends to be more uniform |
Select & Better |
a mixture of select and clear |
Select Grade |
no knots to very few pinhole knots, slight mineral streak, average length 3ft, natural color variations |
#1 Common & Better |
a large percentage of select boards mixed with #1 Common, average length 2.5ft+ |
#1 Common |
tight knots & defects with more color variation (rustic appearance), average length 2.5ft+ |
#2 Common |
more rustic than #1 Common, average length of 2.25ft+ |
Rustic Plank |
lots of character for a rustic look, but sound quality wood. (This is our own popular grade of flooring.) |
Lancaster Hardwoods 1540 Hubbard Dr. Lancaster, OH 43130 Phone: 740.652.1950 Facsimile: 740.652.1951
