Recently, the hardwood flooring manufacturers have begun to add small chips of Aluminum
Oxide directly to the floor's finish which dramatically increases the life of the
urethane finish.
Floor protection wears many coats.
Most factory finished hardwood floors have several coats of finish applied to the
wood's surface. As example, many wood floor companies are applying 6-10 coats of
a ultra-violet (UV) cured urethane. This type of finish would be extremely difficult
for someone to duplicate on a job site finish. In addition, factory finishes tend
to be more consistent and durable.
This does not mean you should wash your hardwood floor with a mop (as a matter of fact, excessive
water is not a friend of hardwood), but it does mean these floors won't watermark
like the old waxed hardwood floors. The UV cured urethane wood finishes do make
these floors easier to maintain than the old waxed hardwood floors.
Pre-finished hardwood finishing offers you these choices:
- UV-cured – Factory finishes that are cured with Ultra Violet lights
versus heat.
- Polyurethane – A clear, tough and durable finish that is applied
as a wear layer.
- Acrylic-urethane – A slightly different chemical make up than Polyurethane
with the same benefits.
- Ceramic – Advanced technology that allows the use of space-age ceramics
to increase the abrasion resistance of the wear layer.
- Aluminum Oxide – Added to the urethane finish for increased abrasion
resistance of the wear layer, which is becoming extremely popular on the better
grade wood floors.
- Acrylic Impregnated – Acrylic monomers are injected into the cell
structure of the wood to give increased hardness and then finished with a wear layer
over the wood.
Job-site hardwood flooring finishing methods provide these options.
If you have an acceptable subfloor surface, and you want a custom stained hardwood
floor or a wood floor to match existing trim, than a job-site finish is your answer.
Job-site finish means you start with a bare (unfinished) hardwood floor and than
the floor is sanded, stained, and finished in your home. The other advantage of
a job-site finish is, if you are concerned with uneven heights between planks, the
sanding process will smooth out the floor. Be warned, though, this can be quite
a mess and the process does take several days.
Job-site hardwood floor finishing methods include:
- Water Based Urethane – Water is used as part of the chemical make
up of the polyurethane finish.
- Solvent Based Urethane – Oil is used as part of the chemical make
up of the polyurethane finish.
- Moisture Cured Urethane – A similar chemical make up as solvent based
urethanes, but this finish needs the humidity (moisture) in the air to cure.
Board widths and their influence.
When shopping for a hardwood floor you will see boards in various sizes. The narrower
board widths are referred to as “strips” and the wider units as “planks”.
You should be aware that board width can visually impact a room.
Narrow width boards will expand a room, while wider boards work well in a larger
room or area.
Edge knowledge you should be aware of.
Different hardwood floors have different edges. Hardwood floors come in either a
beveled edge, or a square edge. Each edge creates its own specific look and feel
to final installation.
Here’s a summary of today’s hardwood edge types:
Square Edge:

The edges of all boards meet squarely creating a uniform, smooth surface that blends
the floor together from board to board. The overall look of this floor gives a contemporary
flair and formal feeling to the room.
Eased Edge:

Each board is just slightly beveled. Some manufacturers add an eased edge to both
the length of the planks as well as the end joints. Eased edges are used to help
hide minor irregularities, such as uneven plank heights. Eased edge is also called
micro-beveled edge.
Beveled Edge:

Determining your floor’s hardness is easy.
Below are listed the relative hardness for numerous wood species used in flooring.
These ratings were done using the Janka Hardness Test, which measure the force needed
to embed a .444 inch steel ball to half its diameter in a piece of wood.
The higher the number the harder the wood. Although this is one of the best methods
to measure the ability of wood species to withstand indentations, it should be used
as a general guide when comparing various species of wood flooring.
The construction and finish also play an important role in the durability and ease
of maintenance of any wood floor.
|
Wood Species
|
Hardness Rating
|
|
Douglas Fir
|
660
|
|
Southern Yellow Pine (short leaf)
|
690
|
|
Southern Yellow Pine (long leaf)
|
870
|
|
Black Cherry
|
950
|
|
Teak
|
1000
|
|
Black Walnut
|
1010
|
|
Heart Pine
|
1225
|
|
Yellow Birch
|
1260
|
|
Red Oak (Northern)
|
1290
|
|
American Beech
|
1300
|
|
Ash
|
1320
|
|
White Oak
|
1360
|
|
Australian Cypress
|
1375
|
|
Hard Maple
|
1450
|
|
Wenge
|
1620
|
|
African Pedauk
|
1725
|
|
Hickory
|
1820
|
|
Pecan
|
1820
|
|
Purpleheart
|
1860
|
|
Jarrah
|
1910
|
|
Merbau
|
1925
|
|
Santos Mahogany
|
2200
|
|
Mesquite
|
2345
|
|
Brazilian Cherry
|
2350
|
Those are the basics regarding hardwood flooring types.
We hope this helps sharpen your focus on a hardwood style to match the pattern of
life in your home. And to see that style, and all of those above, we invite you
to tour one of our seven larger than life showrooms.