Put on gloves, knee pads, and protective eye glasses. You'll be working diligently on your hands and knees for hours to complete this project, especially if you're doing a large space. Invest in a good pair of knee pads to protect your knees. Sturdy work gloves will protect your hands from splinters, and goggles will prevent sawdust and other debris from getting into your eyes.[1]
My advice is to bring in a professional to make sure the floors can be refinished (i.e. if there is still enough room/if you didn’t permanently damage the wood), and if so, have them refinish them rather than replace them – that will be much less expensive. I don’t know where you live and the going rates, but in our area, it’s prob. the price is prob. $1-2 lower…but that may be par for your area. Call in 2-3 people to see. I would check Angie’s List (angieslist.com) for some good local people in your area. Denver Hardwood Flooring
Not only is bamboo resistant to moisture, but it is environmentally friendly and an optimal choice for those who are looking to build “green.” The plant grows faster and does not take as long to re-grow than a typical hardwood tree, therefore not contributing to deforestation. Bamboo flooring is softer than traditional hardwoods, so it will not cause pain if it is stood on for long periods of time. The softness of the floor will also reduce noise.
A number of proprietary features for solid wood floors are available. Many solid woods come with grooves cut into the back of the wood that run the length of each plank, often called 'absorption strips,' that are intended to reduce cupping. Solid wood floors are mostly manufactured 0.75 inches (19 mm) thick with a tongue-and-groove for installation. Denver Hardwood Floor
– If you want to change the species of wood, you may consider replacing the hardwood. The majority of homes in the US have oak. Some people love the look and graining of oak; other customers prefer a more unique look – such as a brilliant Brazilian cherry or a clear maple or a modern looking bamboo. If this is the type of look you are going for, changing woods may make sense for you. But, please understand that you can stain your current floors a different color than they are now. So, don’t just make a change because you don’t like the color since that is easily changeable. Denver Hardwood Floor
Maple is another great choice for hardwood flooring. Many people prefer its light tan look, which blends into home interior spaces. As one of the strongest woods, maple is a top choice for high-traffic areas of a home. The wood doesn’t scuff easily, making it a good choice for homes with children or those with a lot of foot traffic across the floors. Maple requires minimal maintenance, with weekly sweeping and annual applications of wood soap to prolong the life of the floors.
Solid hardwood floors are made of planks milled from a single piece of timber. Solid hardwood floors were originally used for structural purposes, being installed perpendicular to the wooden support beams of a building known as joists or bearers. With the increased use of concrete as a subfloor in some parts of the world, engineered wood flooring has gained some popularity. However, solid wood floors are still common and popular. Solid wood floors have a thicker wear surface and can be sanded and finished more times than an engineered wood floor.[2] It is not uncommon for homes in New England, Eastern Canada, USA, and Europe to have the original solid wood floor still in use today. Hardwood Floor
 116% harder than Red Oak (1)  12% harder than Red Oak (11)  123% Harder than Red Oak (4)  125% harder than Red Oak (2)  141% harder than Red Oak (2)  15% softer than Red Oak (2)  165% harder than Red Oak (2)  174% harder than Red Oak (5)  18% softer than Red Oak (1)  185% harder than Red Oak (4)  198 % harder than Red Oak (2)  2% harder than Red Oak (2)  2% Softer than Red Oak (1)  25% softer than Red Oak (1)  28% harder than Red Oak (1)  30% harder than Red Oak (8)  33% harder than Red Oak (2)  41% harder than Red Oak (7)  43% harder than Red Oak (1)  5% harder than Red Oak (8)  53% softer than Red Oak (1)  6% harder than Red Oak (14)  67% harder than Red Oak (5)  74% harder than Red Oak (2)  81% harder than Red Oak (2)  82% harder than Red Oak (2)  9% softer than Red Oak (1)  about the same as Red Oak (7)  Benchmark at 1290 on Janka Scale (37) Denver Hardwood Floor Install
"Click" or Woodloc systems: there are a number of patented "click" systems that now exist. These click systems are either "unilin" or "fiboloc" A "click" floor is similar to tongue-and-groove, but instead of fitting directly into the groove, the board must be angled or "tapped" in to make the curved or barbed tongue fit into the modified groove. No adhesive is used when installing a "click" floor, making board replacement easier. This system not only exists for engineered wood floors but also engineered bamboo and a small number of solid floors (such as "parador solido click") and is designed to be used for floating installations. It is beneficial for the Do-It-Yourself market. Denver Hardwood Flooring

Wood flooring can also be installed utilizing the glue-down method. This is an especially popular method for solid parquet flooring installations on concrete sub-floors. Additionally, engineered wood flooring may use the glue-down method as well. A layer of mastic is placed onto the sub-floor using a trowel similar to those used in laying ceramic tile. The wood pieces are then laid on top of the glue and hammered into place using a rubber mallet and a protected 2x4 to create a level floor. Often the parquet floor will require sanding and re-finishing after the glue-down installation method due to the small size pieces. Denver Hardwood Flooring

There are some characteristics that are common to each category: solid wood is more frequently site-finished, is always in a plank format, is generally thicker than engineered wood, and is usually installed by nailing. Engineered wood is more frequently pre-finished, has bevelled edges, is very rarely site-finished, and is installed with glue or as a floating installation. [6] Hardwood Floor
Engineered wood flooring has other benefits beyond dimensional stability and universal use. Patented installation systems allow for faster installation and easy replacement of boards. Engineered wood also allows for a floating installation where the planks are not adhered to the subfloor or to each other, further increasing ease of repair and reducing installation time. Engineered flooring is also suitable for underfloor and radiant heating systems. Denver Hardwood Floor Install
Before you choose a hardwood floor, think about how much foot traffic you expect. Consider the look you want and how much you plan to invest. And, if you’re still undecided, browse our selection of other flooring options, including vinyl flooring, tile, parquet, and laminate flooring. You can also find helpful information in our cost guide. From selection to delivery and installation, the Home Depot is your one-stop shop for all your flooring needs.

Sanding provides a method for smoothing an installed floor, compensating for unevenness of the subfloor. Additionally, sanding is used to renew the appearance of older floors. Sanding using successively finer grades of sandpaper is required to ensure even stain penetration when stains are used, as well as to eliminate visible scratches from coarser sandpaper grades used initially. Prior to modern polyurethanes, oils and waxes were used in addition to stains to provide finishes.[7] Beeswax and linseed oil, for example, are both natural crosslinking polymers and harden over time.[8] Denver Hardwood Flooring


Another common hardwood floor malady is the development of gaps between planks. The most common causes of gaps between the boards is Mother Nature. Wood shrinks as it dries out, and it expands when it gets wet and humid. That regular expansion and contraction over time is the most common cause of gaps, and is the main reason why most gaps are seasonal in nature. Perhaps your best plan of action is to exercise patience. Hardwood Floor

– If your floors are REALLY OLD and have been refinished many times, it may be time for a new floor. I’m not talking about oak floors that have been dinged and scratched up…I mean if your floors have been down for over 100 yrs and refinished at least 5 times. If you can see the “tongue” where the boards fit together, it’s probably time for a new floor. Or, if your floors are rather bouncy and/or don’t seem very sturdy, it’s time for a new floor. This happens more often with pine floors as pine floors are softer and used a long time ago. Denver Hardwood Floor Install

Judy – I’m sorry to hear this. I am surprised, but it does happen once in a while. I would probably get a 2nd opinion just to make sure. If they were solid hardwood and are now too thin, then it sounds like they’ve been refinished many times. Generally solid hardwood flooring is 3/4″ thick and that is what you should get if you put in anything new. That will then last a long time and you won’t have this issue in the future.
We live in a 1924 home with very heavy thick oak woodwork thru out. It also has oak floors, quarter sawn in narrow strips, that In most rooms are in need of refinishing. We had a professional come & take a look yesterday, she said the flooring is too thin to sand & refinish. I was shocked, the floors have never been refinished. I was so disappointed. What can be done, if anything? We also have extended our kitchen & wanted to put oak flooring down to match the rest of the house. She said they don’t make this thickness anymore & the new flooring would be much thicker, therefore making it higher than the dining room that opens to it.
Although many people speak about hardwood floors as a single building material, it’s important to understand that they can be made from dozens of different tree varieties, and each has a different color, price and durability. Here are a few of the most popular hardwood flooring options, along with some unique characteristics of each and average pricing:

First, most people are unable to successfully refinish the floors themselves. It takes a lot of experience to refinish properly. Most people can’t get it smooth/even and also don’t realize that you need to sand them 3 times before putting the stain on. It’s even harder to do it right if they are pine or maple floors (and if they are, they require conditioner before stain is applied). Also, once the floors have been sanded unevenly by a non-professonal, it’s even harder to correct due to the waves usually created by the non-professional. Denver Hardwood Flooring
Make cuts perpendicular to the direction the wood is laying. Using a circular saw, make single cuts straight across the flooring that are about 1 foot (30 cm) to 2 feet (61 cm) apart. Be sure your cuts are perpendicular to the direction of the wood. Start on 1 side of the room and work your way systematically to the other side, spacing each cut about 1 foot (30 cm) to 2 feet (61 cm) apart.[3] Denver Hardwood Flooring
So, assuming you can’t refinish existing and you can’t afford to replace it now, then focus on the new kitchen and put solid oak there. It’s okay and very common for this to be higher than the rest and it’s easy enough to add a wood transition. And, then later, you will need to replace the existing worn down floors w/ solid oak, so they will eventually be the same height. Denver Hardwood Floor Install
Once you discover the differences among the popular hardwood flooring species, you’ll look forward to starting your own renovation. If you like to entertain at home and invite guests over often, consider maple’s strong qualities. If you have children or dogs who often bring water into the house, teak and its water-resistant properties can be a great option for you. For a longer-lasting wood that blends in well with almost all types of décor, try oak for your choice of hardwood.
– If your floors are REALLY OLD and have been refinished many times, it may be time for a new floor. I’m not talking about oak floors that have been dinged and scratched up…I mean if your floors have been down for over 100 yrs and refinished at least 5 times. If you can see the “tongue” where the boards fit together, it’s probably time for a new floor. Or, if your floors are rather bouncy and/or don’t seem very sturdy, it’s time for a new floor. This happens more often with pine floors as pine floors are softer and used a long time ago. Denver Hardwood Floor Install

Refinishing can actually take much more time than fully replacing a wood floor. Refinishing is a messy, meticulous process than can take approximately four to five days, during which the floor surface must remain completely untouched. The process requires sanders, edgers, buffers, scrapers, brushes, base coat sealers, topcoat sealers, putty knives and sometimes paint. Replacement, on the other hand, can be done in considerably less time using only lumber, a couple of saws, measuring tape, a flat bar, a chalk line and a nail gun. Denver Hardwood Floor
Sanding provides a method for smoothing an installed floor, compensating for unevenness of the subfloor. Additionally, sanding is used to renew the appearance of older floors. Sanding using successively finer grades of sandpaper is required to ensure even stain penetration when stains are used, as well as to eliminate visible scratches from coarser sandpaper grades used initially. Prior to modern polyurethanes, oils and waxes were used in addition to stains to provide finishes.[7] Beeswax and linseed oil, for example, are both natural crosslinking polymers and harden over time.[8]
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. Denver Hardwood Floor
If you get a second opinion and they can’t be refinished, then your best option will be replace them…or wait until you can replace them. Given when the house was built I’m doubting the floors are even, so putting a floating on top will be a really bad option as they will wobble. And, installing wood on top of thin wood is a really bad solution. If your foundation is weak, your floor will be weak and it will creak and separate. Denver Hardwood Floor Install

Hardwood floors can last a long time, but eventually they need to be replaced. Luckily, it's a pretty straightforward process! Use a circular saw to cut the old hardwood into pieces, then remove the old flooring. Prepare your subflooring so that it's clean and perfectly level. After that, choose your replacement flooring and follow the process for installing that particular type of hardwood! Denver Hardwood Floor
To fix a buckled floorboard, you need to be able to access the floor from below. The way to tackle this problem is to put weight on the buckled area from above — a cement block works well. Then install a 1 1/4-inch screw in the buckled flooring from below. Allow the screw to penetrate only halfway into the flooring, or it may come up through the finished surface. Driving the screw through the subfloor and into the flooring pulls the flooring down against the subfloor and gets rid of the buckled spot. Hardwood Floor
This durable prefinished solid real wood floor will This durable prefinished solid real wood floor will enhance the value of your home. The flooring is made of 3/4 in. thick sawn solid wood and features mother nature's naturally occurring beauty marks such as distinctive color variation knots and mineral streaks. Plank length is totally random and varies based ...  More + Product Details Close Hardwood Floor
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