The Bathroom Floor and the Landing: Decide the Threshold First

Quick answer: Decide the bathroom floor, the floor outside the door, and the strip between them before either floor is laid. A tile that finishes proud of the landing carpet, or a carpet that rides up over a wet bathroom floor, is a threshold problem. It is sorted on a drawing, not on fitting day. This is a planning note for Isle of Man bathrooms. It does not choose a floor material, and it does not quote a price.

Which floor to use inside the room is a different question. Start with bathroom flooring if you are still comparing tile, vinyl and the rest. This page starts at the doorway.

What are the two floors?

Stand in the doorway and look down. The bathroom floor and the landing, or the hall, are often different materials. Tile or vinyl inside. Carpet, floorboards or another hard floor outside. The threshold is the line where those two meet, including any strip, bar, or step that is already there.

Photograph both floors in one frame, with the door open. A photo of the bathroom alone hides the landing. A photo of the closed door hides the joint.

If either floor is about to change, say so. "We might recarpet the landing" is not a decision yet. The edge of the bathroom floor depends on what it has to meet.

Where should the water stop?

A wet floor inside the bathroom should not become a wet landing. The practical test is ordinary use: a shower, a bath, a mat that gets dripped on. Look at where that water sits now. If it already reaches the carpet, the new floor needs an edge that the water can stop at. That might be a raised strip, a tiled lip, or a floor inside the room that sits a little above the landing. This page does not set that height. It asks you to name which of those you are planning, and to show the floors you have.

A walk-in shower that is level with the rest of the bathroom floor moves the wet zone closer to the door. The fall and the waste for that shower are covered with walk-in showers. Here, the only extra question is whether that wet zone still stops before the landing.

A bath mat is not a threshold. It moves, it stays damp, and it does not hold water back from the carpet. If the mat is how the landing stays dry today, say so. The new floor should not rely on it.

What does the door cross?

The door leaf crosses the threshold every time it opens. A strip that is too tall will catch the door. A carpet gripped up against a new tile can stop the door closing. Open the door fully and watch the bottom edge.

Which way that door opens, and what it hits, is the door swing guide. This note only cares about the floor under that swing.

An old lining that is out of square, or a floor that dips at the doorway, will show up when a straight strip is offered up. Photograph the threshold from the side, so any step or dip is visible. You do not have to level it before anyone visits. You do have to show it.

What should be agreed before the floor is laid?

Take this list to the survey:

1. What the bathroom floor is now, and what you want it to be.
2. What the landing or hall floor is, and whether it is staying.
3. A photo of both, with the door open.
4. Any strip, bar, step or dip at the doorway.
5. Whether water already reaches the floor outside the door.

The bathroom planning checklist is the wider list for the same visit. You can place the bath, the basin and the shower in the designer, then mark the doorway on that plan and check the real floors in the room.

If you are still placing the fittings, how to plan a bathroom layout comes before the threshold detail. The floor edge is useless if the door, the basin and the shower are still moving.

What this guide does not claim

This guide does not set a floor height, a slip rating, or a product. It does not say that every Isle of Man bathroom needs the same strip. The flooring guide compares materials. The door guide checks the swing. This page is the line between the two floors, agreed before either of them is fixed.