What Is a Shower Receptor and How Is It Different From a Pan?

A shower receptor is the same part as a shower pan: the molded floor of a shower that you stand on, that catches the water, slopes it to the drain and keeps it from running out into the room. There is no difference in the part itself, only in the word, and Ella's Bubbles calls it a shower base. What is a shower pan and what does it actually do? explains the job the part does; this page sorts out the names and the one distinction that does matter, which is whether the pan you are looking at is a finished floor or a rough tray meant to be tiled over.

Three Names for One Part

Receptor, pan and base all describe the tray at the bottom of a shower stall. Shoppers search for shower receptor, the tiled-shower trade says shower pan (sometimes for a different part, covered below), and Ella's own pages say shower base. When you talk with your Ella dealer or the team at (800) 480-6850, any of the three words gets you to the same product, so you do not need to translate. What you do need to say is the size you need, where the drain line sits in your floor, and which kind of entry you want, because those are the things that actually change from one base to the next.

Whatever you call it, an Ella base does four jobs. It is the floor, a finished acrylic walking surface as shipped. It moves water to the drain, because the slope is molded into the pan. It keeps water in the stall, through a molded threshold at the entry or, on a curb-less roll-in pan, through a self-adhesive collapsible rubber dam that ships with the base. And it ties into the plumbing, with the drain in a set position for each standard size, so your contractor connects it to the house waste line and finishes the walls around it. The walls land on the base edge, and the wall finish comes down over that edge so water runs onto the pan rather than behind it.

The Distinction That Matters: Finished Floor or Tile-Over Tray

In a tiled shower the word pan often means something else entirely: a rough waterproof tray that tile is laid over. That is where most of the confusion about receptor versus pan comes from. An Ella pan is the opposite of a tile-over tray. It is the finished floor, and it is not made for tiling over. Tile needs a rigid, absorbent substrate that mortar can bond to, and acrylic is a smooth finished surface that does not accept thinset, so tile laid over it would not bond reliably and could trap water underneath with no path to the drain. Tiling would also bury the molded slope and threshold the pan relies on to move water. The shell is made solid by being supported from underneath, which is the correct way to make the base feel firm, rather than by adding a layer on top. Can You Tile Over an Ella Acrylic Shower Base? goes through this in detail, and the answer is to choose a different base rather than cover one. A tiled look belongs on the walls above the pan.

So when someone asks whether a receptor differs from a pan, the useful question underneath is this: is the part the surface you will stand on, or a layer that still needs a floor built on top of it? Every Ella base, standard or custom, acrylic or cultured marble, is the first kind.

The Names Side by Side

The rows that look different are different bases, not different words. Receptor and pan are the same row. The real choices are the entry (a curb-less pan with a dam, or a raised threshold), the footprint (a standard 60 inch length in three widths, or a custom rectangle) and the material. What is never on offer from Ella is a tray you finish yourself with tile.

Sizes and Drain Rules Once You Know What You Are Buying

All three standard bases share a 60 inch length and differ only in width, at 30, 32 or 36 inches, so the width of your alcove usually decides which one fits. Each is offered with a left or right drain in a set position, which makes a standard base the simplest choice whenever one of the three footprints fits. What standard sizes do shower pans come in? lists them with their threshold styles. When none fits, a rectangular custom base runs from 30 by 30 inches up to 44 inches wide by 80 inches long for a three-wall alcove, with the threshold on the longer side, and corner bases run from 30 by 30 inches up to 42 by 60 inches. Only rectangles are made, so a space that needs an angled or curved pan is not a fit. The drain can be left, right or center, but it must sit at least 9 inches from each wall; a drain only 7 inches from the threshold edge is not possible even on a custom pan. Pans shorter than 60 inches are routine, such as a 58 by 30 inch base with a center drain and a 36 by 36 inch corner base, while a 53 by 76 inch request cannot be produced. What sizes do shower pans come in, from smallest to largest? walks the whole range.

Beyond acrylic, Ella's range includes SMC low-profile bases molded from sheet molding compound, with a 1 inch reversible linear-drain base and a barrier-free linear-drain base, and complete multi-piece shower kits that use their own pans, such as the 60 by 33 inch three-piece low-threshold kit with a molded seat. Zero threshold bases sit flush with the surrounding floor for a barrier-free entry. Whichever you choose, tell the team where your existing drain line sits in the floor so it can confirm which drain position matches your size, and if the drain is in an unusual spot, open a ticket at ellasbubbles.com/support with a simple drawing of the space.

Related Guides

• What the Ella Acrylic Shower Base Is Made Of and How It Is Installed
• What is a shower base, and why choose an acrylic one?
• Custom-Size Shower Bases: Size Ranges, Threshold Options, Drain Placement Rules, Construction, and How to Request One

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