What Is a Linear Drain and Why Does It Matter for Curbless Showers?
A linear drain is a narrow, trough-style drain that runs in a straight line along one edge of the shower floor, instead of a single opening in the center or a corner. It matters for curbless showers because it only requires the floor to slope in one direction, toward that line, rather than sloping down from every wall toward one central point. That single-direction slope makes it considerably easier to keep the entry itself completely flat, which is the whole point of a curbless design.
That said, a linear drain isn't the only way to build a curbless shower, and it isn't automatically the right choice for every bathroom. Here's how it actually works and how to think about which drain fits your space.
How Does a Linear Drain Actually Work?
Picture the shower floor as a very gently tilted plane rather than a flat surface. With a linear drain, that tilt runs in just one direction, like a slight ramp, down toward a narrow channel along one wall or one edge of the pan. Water runs in a straight line toward that channel and disappears through a slotted cover.
A standard point drain works differently. The floor has to slope inward from all four sides toward a single opening, usually placed in the center or a corner, which means the floor forms a shallow, cone-like shape rather than a flat plane tilted one way.
Why This Difference Matters for a Curbless Design
The entire goal of a curbless shower is a floor that sits level with the rest of the bathroom, with no lip to step over. With a point drain, the slope has to start somewhere, and depending on the shower's size and shape, that can mean the floor begins dropping fairly close to the entry itself, which can work against a truly flat, seamless transition, especially in a larger or oddly shaped shower.
A linear drain solves this by letting the slope run away from the entry entirely. If the drain is installed along the back wall or the side opposite the entrance, the floor near the entry can stay essentially flat, with the slope doing its work farther into the shower, out of the path you actually walk through. This is why linear drains have become so common in curbless and zero-threshold designs specifically, not because a point drain can't work, but because a linear drain generally makes the flattest possible entry easier to achieve.
Do You Have to Use a Linear Drain for a Curbless Shower?
No. A point drain can absolutely support a curbless or low-threshold design, particularly in smaller or more square showers where the slope from all four sides is minimal enough that it doesn't interfere with the entry. EverSafe installs both point drains and linear drains, and which one makes sense depends on the size and shape of your specific bathroom, not a one-size-fits-all rule. A smaller, standard-sized shower often does perfectly well with a point drain. A larger, wider, or more custom-shaped shower is usually where a linear drain starts to make a real, noticeable difference.
Does a Linear Drain Cost More Than a Point Drain?
It can, since a linear drain is typically paired with a more custom, precisely engineered slope and often installed alongside tiled flooring rather than a prefabricated pan. A point drain is generally the simpler, more cost-effective option for a standard conversion. The actual difference for your specific bathroom depends on the size of the shower and the finish materials you choose, which is exactly the kind of thing a specialist can walk you through during a free in-home assessment rather than guess at from a general price range.
Is a Linear Drain Harder to Clean or Maintain?
Not particularly. Most linear drains use a removable slotted cover that lifts out easily for cleaning, which some homeowners actually find simpler to maintain than the small dome-style cover on a traditional point drain. Either option is easy to keep clear with normal periodic cleaning.
Where Does a Linear Drain Go?
A linear drain is typically placed along one edge of the shower, most often the back wall opposite the entry, or occasionally a side wall depending on the room's layout and where the plumbing already runs. Placement is chosen specifically to keep the slope working away from the entry point, so this is very much a decision made based on your bathroom's actual layout rather than a fixed standard placement.
Which Drain Is Right for Your Bathroom?
A linear drain tends to make the most sense if:
- Your shower is larger than a standard stall, or an irregular shape
- You want tile or a large-format slab floor rather than a prefabricated pan
- Keeping the entry completely flat is the top priority
A point drain tends to be the simpler, equally effective choice if:
- Your shower is a standard size and mostly square or rectangular
- You're looking for the more straightforward, cost-conscious option
- A prefabricated, slip-resistant shower base fits your layout well
Frequently Asked Questions
What is a linear drain? A linear drain is a narrow, trough-style drain that runs along one edge of a shower floor, allowing the floor to slope in a single direction rather than from all sides toward a central point.
Is a linear drain required for a curbless shower? No. A curbless shower can be built with either a linear drain or a point drain. A linear drain generally makes it easier to keep a larger or irregularly shaped shower's entry completely flat, but a point drain works well for smaller, standard-sized showers.
Is a linear drain more expensive than a point drain? Often somewhat, since it's typically paired with custom tile work and a more involved slope. The exact difference depends on your bathroom's size and finish choices, which a specialist can confirm during a free assessment.
Does EverSafe install both point drains and linear drains? Yes. Both are available, and which one is recommended depends on your shower's size, shape, and the flooring material you choose, not a fixed default.
Is a linear drain harder to keep clean? No. Most linear drains have a removable slotted cover that lifts out for easy cleaning, similar to or simpler than maintaining a standard point drain cover.
Not Sure Which Drain Fits Your Bathroom?
The right drain depends on your shower's actual size and shape, not a general rule. A free, no-obligation home assessment gets you a specific recommendation and a firm quote for your bathroom.