Do you need an expansion gap for hardwood flooring?

Although engineered hardwood floors can withstand changes in temperature and moisture better than solid wood floors, they still need an expansion gap to allow for small movements.

How does hardwood floor expand?





Solid wood floors take in moisture when there is a high level of humidity in the air and let that moisture go when the humidity reduces. High humidity in the wood causes it to expand. Low, or reducing humidity causes it to contract.

How important is an expansion gap?

It is important to keep this in mind, because when there is not a big enough expansion gap, the floor will expand into the wall. When you don’t have the proper expansion gap, the pressure caused by the natural expansion of the floor will need to go somewhere.

What happens if an expansion gap is not left?

Without an expansion gap ‘buckling’ is a common problem. The expanding laminate floor has no gap to allow for movement. This will cause laminate floorboards to be forced up, often causing a bounce. In extreme cases, it can damage the click system.

What is the maximum floor length I can install without expansion joint?

If the room is more or less square and if there aren’t too many indoor climate changes between weekdays and the weekend or during the day, then you can lay up to 13 running metres without extra expansion joints in the floor surface. The expansion joint along the walls depends on the total length of the floor.

How long does it take for hardwood floors to settle?





three days

Best Practices for Acclimating Wood Flooring



Acclimation times vary by species and product, but a rule of thumb is to acclimate wood floor products for at least three days. You’re trying to reach an equilibrium between the moisture content of the wood materials and the air where the product is being installed.

How much does hardwood expand and contract?

In general, the amount of shrinking and swelling which takes place is directly proportional to moisture content changes in the wood. Wood shrinks and swells the greatest amount in the tangential direction, about half as much in the radial direction, and about 0.1% to 0.2% in the longitudinal direction, Figure 4.

Do hardwood floors expand in winter?

Solid hardwood floors move in sync with fluctuating conditions in their environment. They expand when the humidity increases, and contract when it decreases. During the winter months, contracting floors will often leave thin cracks or gaps between the planks.

What happens if expansion gap is too big?



In addition to detracting from the aesthetics of your surroundings, buckling can also damage the interlocking mechanism of your laminate planks, resulting in extra expenditure to have them replaced. The minimum recommended size for an expansion gap is a quarter( ΒΌ ) of an inch.

How much space should be between hardwood floors and walls?

As already stated, you need to leave between 10 and 15mm all around your room. Ideally, you should place a range of suitably sized spacers against the wall you’re fitting against as well as against the two walls where the floor will run. This way you’re sure to get the right size of gap.

Can you caulk expansion gap?

expansion gaps at the walls and fixtures, and then fill the gaps at flooring ends with 100 percent silicone caulk. It stays flexible, allowing the floor to expand, and in the event of a spill, prevents water from soaking into the laminate core.

How do floating floors stay in place?



Floating floors have become popular in DIY circles due to their ease and speed of installation without specialized tools. Rather than being nailed down, it is held in place by its weight, friction between the floor and its underlying subcontrols, and/or its snapped-together joints.

How do you use expansion gap spacers?


Quote from Youtube video: But the trick I use to keep it all snugged up and not sliding around is. I take spacers. And I put them on the opposite wall as well wedging. The entire floor. And keeping it from moving on you.

How do you stop floating floors from moving?

Use a transition strip of molding to fill that 3/8-inch gap you left between the floating floorboards and the walls. Add a bead of construction adhesive to the gap first, and then slide the transition strip in place. This will do a lot to prevent the floating floors from moving.

Why is my floating floor separating?

Humidity can make your laminate floor boards shrink or expand a bit. This fluctuation in humidity levels can cause them to click loose and move, resulting in openings between the boards. Fortunately, you don’t have to remove the entire floor to close these open joints.

Should floating floors move when walking on them?



Making sure the subfloor is relatively flat minimizes vertical movement of the floor when people walk on it. Note, though, that with a floating floor you will always have a certain amount of movement, as it is installed over a pad. When you walk, the pad compresses and the floor will move.

Why is my hardwood floor separating?

Every hardwood floor endures some separation between boards. In the winter months when the home is heated and the air is dry, wood flooring releases some of its moisture and therefore shrinks. When this happens, thin cracks appear between boards. This is normal and is acceptable.