In general, it will almost ALWAYS be less expensive to refinish your hardwood floors. If you replace them, you need to pay for additional wood as well as ripping up and hauling away existing hardwood. If portions of your hardwood are damaged (e.g. pet stains or minor water stains), you can replace these sections and when you refinish them and it will all look new. Even if you have this, it will still be less expensive then replacing the whole floor. Hardwood Floor
Engineered wood flooring consists of two or more layers of wood adhered together to form a plank. Typically, engineered wood flooring uses a thin layer (lamella) of a more expensive wood bonded to a core constructed from cheaper wood. The increased stability of engineered wood is achieved by running each layer at a 90° angle to the layer above. This stability makes it a universal product that can be installed over all types of subfloors above, below or on grade. Engineered wood is the most common type of wood flooring in Europe and has been growing in popularity in North America[4].
Tongue-and-groove: One side and one end of the plank have a groove, the other side and end have a tongue (protruding wood along an edge's center). The tongue and groove fit snugly together, thus joining or aligning the planks, and are not visible once joined. Tongue-and-groove flooring can be installed by glue-down (both engineered and solid), floating (mostly engineered only), or nail-down (not recommended for most engineered). Denver Hardwood Flooring
Glue down engineered hardwood, alternatively. If you don't want to nail down the boards, you do have the option of using adhesive to put engineered hardwood in place. It's a good choice, but won't last as long or be as sturdy as nailed down hardwood. The procedure is very similar to the nail-down process. Follow the adhesive manufacturer's instructions for installation and drying times.[11] Denver Hardwood Floor
One of the drawbacks of cork flooring is the cost. It is more expensive than other wood flooring options. The cost of import, plus material, plus installation is more than many budgets can handle. Due to the soft nature of the flooring, it is easily damaged by furniture and shoes, but it can and should be protected just like any other type of wood floor. Denver Hardwood Floor Install

Solid hardwood floor planks are made from a piece of wood and made to be anywhere from 18 to 20 mm thick. The boards are made with a tongue and groove to fit together for installation. Depending on the species of wood, certain floors will be harder than others. The harder the floor, the less susceptible it is to dings and scratches. The floor can be sanded and refinished several times to restore its beauty, with the total number of times being determined by the depth of the tongue from the top of the plank.
Solid hardwood is great for high traffic areas and rooms on the first or second floors where there’s limited moisture. You can purchase your solid hardwood floors either prefinished or unfinished. Prefinished hardwood floors have a coating that protects them and they’re ready to install right out of the box. Unfinished hardwoods allow you to apply your own stain color. Hardwood Floor
Floating installation: A floating installation is where the flooring is laid down in a glueless manner on top of a layer of underlay. The individual planks are locked together, and are not glued or nailed down to the subfloor. By doing this the floor is floating above the underlay, and can be laid on top of existing tile or marble, without the risk of damaging the subflooring.
If your floors are in need of a deeper cleaning, use a wood floor cleaner. Follow the instructions for diluting the cleaner in water. Clean the floors with a damp mop, going with the grain. Then, go back over the floor with a clean, damp mop to remove any excess cleaner. Finish by drying the floor completely with a dry towel. Remember, leftover standing water could damage your wood floors. 

Over the years, many hardwood floors develop small splits or cracks in the surface of the wood. These can be spot repaired with some angled nails to secure the two pieces together, along with some wood putty to hide the blemishes. If your floor is suffering from large cracks, however, you might want to think about refinishing the floor. And if the split is particularly bad, you should probably replace the damaged plank altogether.
Lowe’s has what you need to bring value-adding beauty to your home with hardwood flooring. There are plenty of species to choose from, including acacia wood flooring, walnut flooring, maple flooring, hickory hardwood flooring and cherry wood flooring. Depending on your budget and room’s traffic level, you’ll be sure to find a style to suit your needs.
 Acacia (9)  American Walnut (1)  Ash (5)  Bamboo (22)  Beech (5)  Birch (3)  Bloodwood (2)  Brazilian Cherry (10)  Brazilian Chestnut (5)  Brazilian Koa (9)  Brazilian Oak (5)  Brazilian Walnut (5)  Cumaru (3)  Curupay (2)  Hevea (4)  Hickory (27)  Maple (14)  Oak (15)  Pecan (3)  Pine (10)  Purple Heart (2)  Red Cumaru (2)  Red Maple (1)  Red Oak (40)  Short Leaf Acacia (3)  ShortLeaf Acacia (1)  Spanish Hickory (3)  Tamboril (2)  Tauari (3)  Walnut (1)  White Oak (34)
No matter what type of hardwood flooring you choose, proper care and maintenance will help them look beautiful even longer. First off, don’t let the dirt and dust collect. At least once a week, you’ll want to go over your hardwood floors with a broom or dust mop to pick up any dirt, dust, hair or pet dander. If you’re using a vacuum, make sure it’s set to ‘wood floors’ so that you’re not beating up your floors and damaging them in the process. Hardwood Floor
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