The Quick Verdict: Which Should You Choose?
The choice between Click and T&G (Tongue & Groove) depends on your installation method and the project's scale. Click systems are the gold standard for DIY "floating" installations due to their speed and ease. However, T&G (Tongue & Groove) remains the professional’s choice for high-end, permanent projects, especially when combined with Underfloor Heating (UFH) or when a "glue-down" method is required for maximum structural stability.
1. Technical Breakdown: The Mechanics of the Joint
Click System (The "Valinge" or "Uniclick" Logic)
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How it works: Planks feature a specially profiled locking mechanism that "clicks" into place without adhesive.
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Best for: Floating floors over a foam underlay.
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Advantages: Fast installation, no messy glues, and the ability to "unclick" and replace a plank if damaged.
T&G (The Traditional Masterpiece)
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How it works: A protruding "tongue" on one side fits into a "groove" on the other. It usually requires PVA glue (for floating) or full-trowel adhesive (for glue-down).
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Best for: Permanent luxury installations, large open-plan spaces, and UFH.
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Advantages: Superior structural bond, quieter underfoot (when glued), and more "forgiving" on slightly uneven subfloors.
2. Comparison Table: At a Glance
| Feature | Click System | T&G (Tongue & Groove) |
| Difficulty Level | DIY-Friendly | Professional Recommended |
| Speed | 30% Faster | Slower (requires gluing) |
| Installation Method | Floating only | Floating or Glue-down |
| UFH Efficiency | Moderate | Excellent (when glued) |
| Repairability | High (can unclick) | Moderate (requires specialized tools) |
| Longevity | Excellent | Superior (structural bond) |
3. The Maxzara Click vs. T&G Decision Tree
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Are you installing the floor yourself?
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Yes: Choose Click. It requires fewer tools and eliminates adhesive errors.
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No (Hiring a pro): Move to question 2.
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Is there Underfloor Heating (UFH) involved?
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Yes: Choose T&G (Glue-down). This eliminates air gaps and ensures 100% thermal conductivity.
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No: Move to question 3.
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Is it a large, high-traffic commercial or luxury residential space?
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Yes: Choose T&G (Glue-down). The "solid" feel underfoot and lack of "bounce" provide a more premium acoustic experience.
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No (e.g., a bedroom or rental): Click is perfectly sufficient.
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4. FAQ: Deeper Technical Insights
Q: Can you glue down a Click floor?
A: Technically yes, but it is redundant. Click systems are designed to "float." If you want a glue-down installation for maximum stability, T&G is the superior choice as it allows the adhesive to bond more naturally with the joint.
Q: Is T&G more waterproof because of the glue?
A: Yes. When a T&G floor is installed with PVA glue in the joints, the glue acts as a secondary sealant. This makes it slightly more resistant to surface spills than a dry-joined Click system, which may allow moisture to seep through the locking mechanism.
Q: Why do professionals prefer T&G over Click for high-end London projects?
A: Accuracy and "Feel." Professionals often use the Full-Trowel Glue-Down method with T&G. This prevents the "hollow" sound associated with floating floors and ensures the floor feels as solid as a traditional 19th-century hardwood floor, which is a requirement for many premium London renovations.
Q: Which is better for an uneven subfloor?
A: T&G. Click systems require an almost perfectly level subfloor (tolerance of +/- 2mm over 2m). If there is a dip, the "Click" lock can experience "joint fatigue" and eventually snap. T&G, when glued down, can accommodate minor subfloor imperfections more gracefully.