A custom shower enclosure is built to the opening you actually have, rather than to the nearest standard size. That matters when a wall is out of square, when a tub ledge or a knee wall changes the depth, or when a standard combination leaves a gap you would have to live with.
This page is a starting point for choosing the configuration before you measure. If you already know your measurements, the four custom ranges below take you straight to the options.
How Custom Sizing Works
Custom sizing starts from the finished opening: the width and height you measure after tile, wall panels and any trim are in place. Standard combinations cover the most common bathroom dimensions, and non-standard dimensions cover everything outside those ranges. Most projects only need the non-standard route when the opening falls between standard sizes or when the walls are noticeably out of square.
Made-to-Measure Sizing
Made-to-measure sizing is the part of the process that decides whether the door fits the first time. The measurement is taken at the finished opening, at several points across the width and height, because a wall that looks straight can still vary by more than the door's adjustment range allows. The measurement checklist for custom doors lists what to record, and the timing guide explains why the final measurement is taken after the surrounding surfaces are finished rather than before.
What to Measure Before You Order
Record the width at the top, middle and bottom of the opening, the height at both sides, and the depth of any ledge or return wall the door has to clear. Note the wall material you are fixing into, and whether the opening is a shower alcove, a corner, or a tub surround, because that changes which configurations are practical. If you are also replacing a base or a surround, measure those first: the shower door measuring guide covers the general method, and the custom door process overview puts the steps in order.
Frameless / Framed / Sliding / Swing Options
The configuration decision comes before the finish decision, because it determines how you enter the shower and how much glass the enclosure needs.
Frameless and Framed
Frameless enclosures use minimal hardware and expose more of the glass, which suits bathrooms where the enclosure should read as part of the room. Framed enclosures add a metal frame around the glass, which is the usual choice when the opening is wide or the installation needs more structural support from the frame itself. Both routes are available as custom builds.
Sliding and Swing
Sliding doors move within the enclosure footprint, so they suit bathrooms where a door that swings outward would collide with a vanity, a towel rail or a doorway. Swing doors hinge on the wall or on a fixed panel and give full access to the opening, which suits alcoves and corners with clear space in front. Sliding enclosures split further into single-sliding and double-sliding layouts depending on how many panels move.
What to Prepare Before Ordering
Three things worth settling before you order: the finished opening measurements, the wall or curb condition the door will be fixed to, and the glass thickness you want. If a base or a surround is part of the project, confirm those dimensions first, because a base change can move the opening width you measured. The process overview walks through the sequence, and the price factors are explained in the shower door cost guide.
Shipping and warranty terms are published on their own pages: see the shipping policy and the warranty registration page for the current terms that apply to your order.
Browse the Custom Ranges
- Custom frameless shower doors — minimal hardware, maximum glass
- Custom framed shower doors — framed support for wider openings
- Custom sliding glass shower doors — panels that move inside the enclosure footprint
- Custom swing glass shower doors — hinged access for alcoves and corners
- Non-standard dimensions — sizes outside the standard combinations
- Shower door hardware — hinges, handles, seals and guide rails
Not sure whether your opening needs a custom build at all? The standard shower door collection covers the ready-sized options, and the door type overview compares the layouts.