What is the maximum slope for a shower pan?

ANSWER. Yes, the correct slope for all horizontal surfaces is 1/4″ vertical (minimum) up to 1/2″ (maximum) for every 12” of horizontal run.

How much slope should a curbless shower have?

Slope of the shower floor

The International Plumbing Code (IPC) requires a slope of 1/4” per foot (IPC 417.5. 2 Shower Lining) for shower floors, which is echoed in the TCNA Handbook shower receptor methods.

How much fall should a shower have?

The recommended ratio of fall within showers is between 1:60 and 1:80. However, the ratios may not be achieved due to: (a) The size of the tiles used – falls become more difficult to achieve with larger tiles.

What is the recommended minimum slope to fall for a wet room?

Creating a gradient in a wet room is one of the three most important components of wet room construction, and is vital in order to guide water down the drain efficiently. The minimum recommended fall is 12mm, and the slope needs to be formed into the floor itself.

Are Curbless showers a good idea?

Curbless showers not only look great, but they are also a lot more accessible, meaning they prevent bathroom accidents like tripping over the curb while getting in and out of the shower. They are also a lot easier to clean because they don’t have small hard to reach corners like traditional showers or bathtubs.

How much slope should a shower curb have?

The curb or lip around the bottom of the shower should to be slanted inward at a 5-degree (approx. 3/16″ to 1/4″) “pitch” or slope so water flows in toward the drain. (A level curb would cause the water to stand, while a curb angled away from the drain would cause water to leak onto the bathroom floor.)

How much slope should a bathroom floor have?

Floor falls

For bathroom floors, the recommended minimum fall to the waste shall be 1:100 (10mm per 1m). For shower areas with a vertical separation between the shower area and the wet area, such as a shower screen, hob, set-down or water stop, the fall to the waste shall be 1:100.

How much fall do you need in a shower floor?

Shower Floor Slope

To efficiently drain, the recommended minimum slope for a shower floor is about 4 percent, or a 1/2 inch drop per every 12 inches from the shower walls to the drain. In traditional tile shower construction, this slope is established in the mortar pre-pan.

How much fall does a tiled shower need?

An enclosed shower with upstands must have a minimum 1:60 fall towards the floor waste. For a shower with a level access, the fall must be at least 1:50 towards the floor waste.

What is a 1 in 60 fall?

A gradient of 1:60 means that there will be 1 unit of fall for every 60 units of patio width. The patio is to be 4.2m wide, so if that distance (the run) is divided by 60, the result is the 1 unit of fall.

What fall should a shower tray have?

Falls within the shower should be between 1:80 and 1:35. Any less than 1:80 and water will not drain; any steeper than 1:35 and it becomes inconvenient and dangerous for users. The flow of water from the showerhead must also be less than the drainage rate.

How do you find the slope on a walk in shower floor?

Measure from the drain opening to the furthest wall, then round up to the nearest foot. Calculate the slope by multiplying the measurement by 1/4 inch. For instance, if the drain opening measures 2-foot 8-inches from the furthest wall, then the shower floor should slope 3/4 inch from that wall to the drain.

How do you slope a wet room floor?

A wet room that doesn’t drain properly is cold, damp, impractical for use, and frustrating to clean. Solution for incorrect floor slopes: Floor slopes within the wet room shower system should contain an even gradient of 1.5% to 2% towards the drain area.

How do you keep water in a curbless shower?

Lastly, curbless showers do a good job of keeping water within the splash zone if installed properly. The shower head is strategically placed and the shower floor is sloped toward the drain to keep water out of the bathroom.

Is it more expensive to do a curbless shower?

A traditional, curbed walk-in shower costs about $2,500 to $5,000. Installing a curbless shower will add on another $500 to $700 or more, depending on the tile choices, shower size, and any additional shower waterproofing that is needed.

How hard is it to do a curbless shower?

A curbless shower is very simply a shower that has no barriers for entry or exit. Curbless showers are a bit tricky to install because the slope of the drainage floor needs to be slightly lower than the level of the floor surrounding the shower in order for all the water to drain and flow to the right place.

Should a shower bench be sloped?

Design a built-in shower seat to slant toward the drain at a 5° (approx. 3/16″ to 1/4″) slope so water flows off the seat and into the drain to prevent water from standing or pooling if the seat is angled backwards.

Should a shower threshold be level?

Mistake: Improper shower curb slope

The slope of the shower curb is a key aspect of successful water containment, so a mistake on this part of a glass shower can be an inconvenient one. The curb should not be level, and above all it should never slope away from the enclosure and toward the bathroom floor.

What is the minimum opening for a walk in shower?

Walk-In Shower

But NKBA (National Kitchen + Bathroom Association) recommends an open shower to be 36” by 36”. This size allows you to comfortably raise your arms and move around the shower more freely. It’s also important to note that a walk-in shower opening should at least be 22”.

Does a bathroom floor need to be sloped?

A bathroom floor should be level before you install tile or wood flooring, as a solid subfloor is essential to building a robust structure. However, it is not uncommon to see sloping floors in wet rooms and showers, as you need a slight slope to allow water to drain properly.

How do you slope a shower floor for a linear drain?


All wet (shower) areas must have a sloped floor towards the outlet at ¼” per foot (consult local codes for your area). Traditionally this is a 4-way slope towards the center of the wet area significantly limiting design options and tile size choice.