Thresholds between ceramic and stone floors

Clean transitions between rooms and floor types

Why thresholds matter

Every doorway is a transition point where two floors meet. If the tiles are the same on both sides, the grout lines should align seamlessly. If the materials differ — tile to wood, tile to carpet, or two different tiles — a threshold profile manages the transition cleanly and safely.

Same tile, continuous layout

The ideal case: the same tile runs through the doorway with no visible break. This requires planning the tile grid across both rooms simultaneously so the grout lines are continuous. The Tile Cut Plan lets you define the full floor area including doorways to achieve this.

Different floor levels

When two rooms have different floor build-ups, the finished floor levels may differ. A ramp profile provides a gradual transition. Building regulations typically allow a maximum step of 5 mm without a ramp — above that, a transition strip is required for accessibility and safety.

Threshold profile types

• T-bar — sits between two floors at the same level. Clean vertical edge on both sides. Available in aluminium, brass, and stainless steel.
• Ramp/reducer — transitions between floors at different levels. One side is higher than the other.
• Z-bar — overlaps one floor surface, covering the raw edge. Used when one floor is installed before the other.
• Expansion joint — a flexible strip that accommodates movement between rooms. Essential for large tiled areas or where underfloor heating creates differential expansion.

Design considerations

The threshold material should complement both floors. Brushed stainless steel is versatile and modern. Brass adds warmth and luxury. Matt black aluminium suits industrial aesthetics. Avoid plastic profiles in visible areas — they look cheap and discolour over time.