If you have gaps in your hardwood floors, don’t worry – you’re not alone. Many homeowners experience this issue at some point during their flooring project. In this guide, we will show you how to fix the gaps and make your floors look beautiful again!
Over time, wood floors can start to show their age. Gaps can form between the boards, and the finish can become dull and faded. up to the point where you’ll have to refinish those floors. There are several reasons why this happens. First, as the house settles, the floors can shift slightly, causing the boards to separate. Second, changes in humidity can cause the wood to expand or contract, leading to gaps. Finally, wear and tear can take a toll on the floors, leaving them vulnerable to damage. While there may be some inherent problems with wood floors, there are also some simple solutions.

Find the Cause of the Problem
Keep in mind first that wood is a natural material. Weather and humidity fluctuations can also cause shifts over time. The wood boards will expand and compress as the temperature changes. The result is unsightly floor gaps.
Humidity Levels
Cracks usually occur in the bathrooms and kitchens, which are also the hottest and most humid spots in the house. In most cases, the problem areas for hardwood floor gaps will be in high-traffic areas like the kitchen, bathroom, and foyer.
However, no matter the humidity or the season, gaps shouldn’t appear on your floors if they were installed correctly.
No Acclimatization Was Done
In addition to installing the hardwood floors straight and uniformly, a trustworthy professional will ensure that they have been properly acclimatized before they are installed. The boards’ inconsistency invites moisture and movement, which might lead to cracks.
If your recently installed hardwood floors were sloppily done, you may be discovering gaps for the first time this season. That’s because the dry air has caused the wood to shrink and the spaces between the boards to widen.
Choose a Method to Fix Gaps in Hardwood Floors
There are a number of ways to fix gaps in hardwood floors.
The most common method is to use wood filler. This substance is available in a variety of colors, so it can be matched to the existing color of the floor.
Wood filler is applied to the gap with a putty knife, and then it is smoothed out until it is level with the rest of the floor.
Once it dries, the filler can be sanded and stained to match the surrounding area. Another popular method for repairing hardwood floors is to use dowels.
Dowels are placed in the gaps, and then they are covered with wood putty or filler. The advantage of using dowels is that they provide additional support for the floor. However, they can be difficult to install, and they are not always invisible once they are in place.
In the past, homeowners would fill these gaps with rope made from natural fibers like hemp or wool. The rope would be cut to size and then wedged into the gap, before being trimmed flush with the surface of the floor. This method was commonly used on wide plank floors, as it helped to prevent the boards from warping and ensured a tight fit. Today, many homeowners still prefer to use a natural-fiber rope to fill gaps in their floors, as it is an eco-friendly and stylish way to add character to a space.
Gaps in hardwood floors can also be fixed by replacing individual boards. This method is more time-consuming and expensive, but it will create a seamless look.
Let’s see each of these popular methods in detail.
How to Fix Gaps in Hardwood Floors Using Rope
While there are a number of ways to fill these gaps, one of the most effective is to use a rope. The rope is flexible and can be easily wedged into the gap, providing a firm foundation for filler material. Once the rope is in place, you can use wood putty or another type of filler to cover the gap and create a seamless look. With a little time and effort, you can easily fix gaps in your hardwood floors using a rope.
Fill in the Cracks
Use a flathead screwdriver to scrape out the cracks and remove any debris or old putty. The borders of the neighboring flooring must be protected at all costs. Collect the loose dust and dirt in the cracks with a shop vac. Make sure to vacuum and scrape until all the nooks and crannies are gone.
Stain the Rope
Choose a rope that is both longer than the space and wider in diameter. A small bucket and some wood stain in a color that works with your floorboards. Soak the rope in the stain until it is completely soaked. Gently remove the rope, allowing any accumulated stain to return to the bucket. The rope that has been stained should be dried flat on clean cardboard.
Don’t Leave Any Spaces Empty
The rope has to be flush with or just slightly below the wood surface. Cut the rope to the desired length with a utility knife.
Voila! The crack is no longer visible.
How to Fix Gaps in Hardwood Floors Using Wood Strips
Fortunately, there is an easy way to fix gaps in hardwood floors using wood strips.
Wood strips are thin pieces of wood that can be glued or nailed into place.
To use them to fix gaps in hardwood floors, start by removing any debris from the gap.

Next, apply a generous amount of glue to the back of the wood strip and press it into place. For best results, use clamps to hold the wood strip in place while the glue dries.
Once the glue has dried, trim any excess wood strip off with a sharp knife.
Finally, sand the area smooth and finish it with a stain or sealant to match the rest of the floor.
With this simple technique, you can easily fix gaps in hardwood floors and restore your floor’s original beauty.
How to Fix Gaps in Hardwood Floors Using Wood Filler
While unsightly, these gaps don’t necessarily mean that your floor is in need of a full replacement. In many cases, you can fix gaps in hardwood floors using wood filler.
Wood filler is a putty-like substance that can be used to fill small holes and cracks in wooden surfaces. It’s available in a variety of colors, so you can choose one that closely matches the color of your floorboards.
To use wood filler to fix gaps in hardwood floors, simply apply the filler to the gap and allow it to dry.
Once it’s dry, you should sand the area smooth and refinish the floor as desired. Applying a coat of polyurethane or varnish to the surface will make it more resistant to wear and tear. This will help it blend in with the flooring you already have.
Find a wood putty that has a hue that is similar to the floorboards. There are kits available that contain a variety of colors that may be blended together to create a hue that is suitable to your preferences if you are unable to find a perfect match. Don’t go too dark, cause otherwise, you’ll have to remove those stains and refinish the floors.
With this quick and easy fix, you can enjoy your beautiful hardwood floors for years to come.
Conclusion
It’s not uncommon for hardwood floors to get gaps between the boards as time goes on. Changes in humidity and temperature, as well as the wood’s inherent tendency to expand and contract, are some of the reasons that cause these spaces in the wood. While gaps in hardwood floors are not always a problem, they can be unsightly and may pose a tripping hazard. Fortunately, there is an easy way to fix gaps in hardwood floors using wood strips.