If you’re looking for a bathroom renovation or a shower replacement, getting familiar with the sizes of shower floors and bases is a must. This knowledge will allow you to set up and align the drain properly.
This way, you’ll be sure it works correctly with your plumbing. Being able to recognize sizing correctly for your house will also make you able to narrow down the choice. It makes it easier to focus on the visual aesthetics.
Summary
The standard shower floor pan & base sizes are 36″ x 36″ up to 42″ x 60″. However, they can be as narrow as 32″ and as wide as 60″ in either direction. Make sure you get the one that’s right for you. From our testing, the best standard shower floor pans & bases are made by Kohler, Dreamline, & American Standard.
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There are many different sizes of shower floor pans and bases. These also come in various options, each having a slightly different function from the others. Some have drains set in different locations.
Some are tilted, and some are flat. There are many variables you need to consider when purchasing a new shower. All of this can be overwhelming to an inexperienced person.
That’s why we’re coming to help you- in this article, you’ll learn all about the different types and sizes of shower trays. You will also see some actual products and their typical prices. Let us begin!
Table of Contents
Standard shower floor pan & base sizes
Now that we know the differences let’s get to the actual sizes of these shower floors. It’s important to know that shower trays can be further divided into variations based on the drain’s location. These variations are:
- An offset drain, with the drain on the right-center or left-center of the tray
- An on-edge drain, with the drain on either of the edges of the tray
- A center drain, with the drain in the middle of the tray.
Each option has unique standardized models and sizes used across all brands. Typically, center drains are done in a squarer shape. The on-edges and offsets have a more rectangular shape.
This distinction is important because it determines the amount of space you need for the shower floor. It includes the exact spot you have to position it in for the drain to be properly aligned.
Choosing the wrong size or shape might result in the inability to install the drain according to the plumbing. Therefore, it makes the whole installation pointless.
These parts are installed similarly to how prefab buildings are assembled- premade pieces are put together. It starts with the bottom, going up with the walls, and then the finishing.
Most of the size models of these pieces are made in even measurements. It typically ranges from 36 inches by 36 inches to 42 inches by 60 inches.
Here are the sizes, categorized by tray model, along with some available pieces:
Center drains
36’’ by 36’’
It’s the smallest available dimensions, making for the most compact shower. A good choice if you’re looking for a shower that won’t take up much space.
| Specifications | Description |
| Name | Dreamline slimline 36″x36″ |
| Length | 36″ |
| Width | 36″ |
| Height | 2 3/4″ |
| Base type | Single Threshold |
| Drain | Centre |
| Material | Non-porous high gloss acrylic |
| Features | SlipGrip floor surface for slip-resistance |
38’’ by 38’’
It’s the second smallest model available. It allows a bit more space than the previous one while keeping space-saving and compact capabilities.
38” by 38” by American Standard
| Specifications | Description |
| Name | American Standard A8009D-FCO.020 Studio |
| Width | 38″ |
| Height | 2.31″ |
| Length | 38″ |
| Drain | Center |
| Material | High gloss acrylic with fiberglass reinforcement |
| Installation Method | Alcove |
| Additionally include | Brushed stainless steel trench cover |
36’’ by 42’’
It’s the first non-square option of this drain variation. Being rectangular, it can fit into more narrow spaces and provide more standing ground.
Pros
- cUPC certified
- The construction is so durable it disallows any flexing of the base
- Makes for easy and quick installation
- 4 star rating on Amazon
- Limited Lifetime Manufacturer Warranty
Cons
- Drain not completely in center
32’’ by 48’’
It’s even narrower and longer than the previous option. Much more suited for longer bathrooms and installations done in the corners.
34’’ by 48’’
It’s a bit wider than the 32-inch version. Perfect for people who feel that 32 by 48 inches is just a bit too little. Keeps the benefits of being able to fit into smaller spaces while giving you more space to stand on.
Pros
- SlipGrip means slip-resistance floor surface
- High gloss that has high longevity
- Comes in multiple colors to coordinate with your bathroom
- Quick installation
- Customers rate it highly value-for-money
Cons
- The drain is not completely centered
36’’ by 48’’
Slightly wider, more square in shape. The two extra inches make it more comfortable to stand on and move around on while still being compact and space-saving.
42’’ by 48’’
This size can no longer be called small. Having more than a meter in length and width is your best option if you’re looking for a combination of comfort and a good price.
42” by 48” center drain pan by Kohler
48’’ by 48’’
It’s another square model, although considerably bigger than the previous one. Its shape allows for more comfortable movement and more space while still not taking up much of your bathroom. It’s more suited for smaller-sized bathrooms.
48” by 48” center drain by Schluter Kerdi
36’’ by 54’’
Going back to the rectangular shaping, we have this version that’s slightly longer yet considerably narrower than the 48’’ square one. The best quality it has is its ability to work better with longer bathrooms and fit into tighter corners better.
36” by 54” center drain base by Dreamline
32’’ by 60’’
It’s even longer and even more narrow than the previous option. This one is the most non-square standard size. It’s perfect for longer bathrooms and will give you all the necessary space.
This size, and all of the bigger ones, could be comfortably used by more than one person. It’s great in case you want to shower with your significant other.
32” by 60” Well Made Forever tray by Swiss Madison
34’’ by 60’’
It’s slightly wider than the previous version, allowing for more comfort at the cost of slightly more space. One of the bigger standard sizes is better for bigger households.
34” by 60” center drain pan by Dreamline
36’’ by 60’’
It adds two extra inches to increase the freedom of movement further. This size allows you to install a larger shower on top of it, perfect for people that seek comfort no matter the price.
36” by 60” Swiss Madison tray with center drain
42’’ by 60’’
The second biggest standard size available, it allows for near maximum comfort. It also comes at a higher price than the previous ones, so it should be considered a more luxurious option.
48’’ by 60’’
It’s the biggest size available for center drain shower pans. It offers the most comfort and freedom at the cost of space and high price. It’s the most luxurious, most expensive option.
Offset drains
32’’ by 48’’
It’s the smallest standard size for offset drain shower pans. It offers the least amount of space to benefit from spending the least amount of money. Very compact and space-saving.
32” by 48” left drain by Woodbridge
30’’ by 60’’
It’s the second smallest option available. Slightly longer than the previous one, allowing for some more space at a slightly higher cost. Perfect for smaller budgets and houses.
30” by 60” left-hand drain pan American Standard
32’’ by 60’’
It’s similar to the previous version, only 2’’ wider. Gives a bit more space while keeping the cost similar. It can be an alternative to the 30’’ by 60’’ version.
32” by 60” waterproof offset pan from Prova
34’’ by 60’’
It’s another insignificant change in the dimensions, adding only 2 inches again. The price is only a bit bigger, in exchange for more space and comfort.
34” by 60” left drain base by Tile Redi
36’’ by 60’’
The second biggest standard size available, although not that different from the previous one. Once again, there’s a two-inch difference in the width. It’s while the length stays the same. Naturally, the cost increases.
36” by 60” left side drain tray by Dreamline
42’’ by 60’’
The biggest standard size for offset drain shower pans. Compared to the previous option, it’s wider by 6 inches and has the same length. It’s your best buy if you’re looking for the most amount of comfort and have a big enough budget. It’s also the most pricey option out of them all.
