Flooring Guides
What Is a Unilin Click System and Why Does It Matter?
A Unilin click system is a patented locking system used to connect flooring planks without glue or nails. The profile is built into the edges of each plank, allowing neighbouring boards to lock securely together during installation — and for SPC click flooring, the quality of that locking system affects how easily the floor fits together and how securely the joints stay connected once installed.
How Does the Unilin Click System Work?
The Unilin click system uses specially shaped edges that mechanically lock adjoining planks together. Depending on the particular locking profile, the boards are joined by angling, pressing or clicking them into position. Rather than fixing every plank directly to the subfloor, the connected planks form a floating floor.
Keeps adjoining planks aligned
Creates secure joints between boards
Reduces the need for adhesives
Makes installation quicker, cleaner and floating-floor friendly
Why Does the Click System Matter?
Not all click flooring systems are the same. The click profile is one of the most important parts of an SPC plank because it's responsible for holding adjoining boards together. A poor-quality locking system can make installation more difficult and may be more vulnerable to damaged joints or gaps if the flooring isn't fitted correctly. A well-designed click system provides a more consistent connection between planks and can make fitting the floor more straightforward. The Unilin system is widely used in the flooring industry and has been developed specifically for mechanical flooring joints.
Why Is a Unilin Click System Useful for DIY Installation?
A good click system can make SPC flooring more approachable for confident DIY installers. There's normally no need to spread adhesive across the subfloor or mechanically fix individual planks — instead, the installer works across the room connecting one plank to the next.
Less mess during installation
Fewer materials required
Faster plank fitting and easier alignment
A more straightforward overall installation process
Benefits of the Unilin Click System
No Full-Surface Adhesive
Cleaner Install
SPC click flooring is normally installed as a floating floor, so planks don't need to be fully bonded to the subfloor — cleaner and less complicated than glue-down flooring.
Secure Plank Connection
Consistent Joints
The locking profile holds neighbouring planks securely together and maintains consistent joints across the floor.
Faster Installation
No Curing Time
Once the first rows are positioned, installers can work plank by plank without waiting for adhesive to cure.
Easier Replacement
Depending on Layout
Floating click flooring can sometimes be easier to dismantle and replace than flooring fully glued to the subfloor.
Pro & DIY Friendly
Repeatable Method
The mechanical locking system offers a repeatable fitting method for professional installers and capable DIY users alike.
Correct Installation Still Matters
Even a high-quality click system can be damaged by poor installation. Before fitting SPC click flooring:
1
Make sure the subfloor is clean, dry and sufficiently level.
2
Plan the plank layout before starting.
3
Maintain the required expansion gap around the perimeter.
4
Keep the click profiles free from dirt and debris.
5
Don't force a plank that isn't correctly aligned.
6
Check damaged locking edges before installation.
Why We Use a Unilin Click System
Our SPC flooring uses a Unilin click system because the locking mechanism is an important part of the overall quality of the finished floor. Combined with our rigid SPC construction and integrated underlay, the system allows the floor to be installed without full-surface adhesive while creating secure joints between adjoining planks. For the installer, that means a cleaner, more straightforward fitting process. For the homeowner, it means the flooring benefits from a recognised mechanical locking system designed specifically for floating flooring installations.
The Bottom Line
The Unilin click system matters because the joint between each plank is a critical part of any SPC click floor. A good locking system helps the planks fit together accurately, keeps the installation process straightforward and removes the need for full-surface adhesive. For anyone comparing SPC flooring products, the click system is worth checking alongside other specifications such as the core construction, wear layer and integrated underlay — a quality SPC plank shouldn't just look good on the surface, the way the boards connect is equally important to how the finished floor performs.
Frequently Asked Questions
What is a Unilin click system?
It's a patented mechanical locking system used to connect flooring planks without glue or nails. Specially shaped edges built into each plank allow neighbouring boards to lock securely together during a floating-floor installation.
Does the click system remove the need for subfloor preparation?
No. Even with a high-quality click system, the subfloor still needs to be clean, dry, stable and sufficiently level, and the correct expansion gaps still need to be maintained.
Why is click flooring easier to replace than glue-down flooring?
Because the planks are mechanically locked rather than bonded to the subfloor, floating click flooring can sometimes be easier to dismantle and replace, depending on the position of the damaged plank and the room layout.
What should I do if a plank won't click into place?
Remove it and check the joint for dirt, debris, damage or incorrect alignment rather than forcing it. Excessive force can damage the locking profile and prevent the plank from joining correctly.
Is Unilin click flooring suitable for DIY installers?
Yes. The mechanical locking system provides a repeatable fitting method that works for confident DIY installers as well as professionals, without the mess or curing time of full-surface adhesive.
Ready to Shop SPC Click Flooring?
Browse our full range of SPC click flooring at outlet prices, fitted with a Unilin click system and a 25-year residential warranty as standard.