How to Measure for a Neo Angle Shower Door

A neo angle shower has three glass planes meeting at 135° angles across a corner, which makes measuring it less forgiving than a standard opening. Here’s how we approach it at Showercrafters, and how to rough-measure your own corner before visiting the showroom.

What You’ll Need

A metal tape measure, a level, and a notepad. Measure in inches to the nearest 1/16″.

Step 1: Measure the Three Front Edges of the Curb

The curb (threshold) of a neo angle shower has three edges: the two angled side segments and the center segment where the door goes. Measure each edge along the top of the curb, corner to corner. Write them down left to right as you face the shower.

Step 2: Measure Each Plane at the Top Too

Openings are rarely square. Measure where the top of each glass panel will land – typically 72″-76″ up – between the same reference points. If the top and bottom differ by more than about 1/8″, the walls are out of plumb, which is normal in older homes and exactly why custom-cut glass fits better than a stock unit.

Step 3: Measure the Height

From the top of the curb to the desired top of the enclosure, at both wall ends. Note the shower head height as well – the enclosure should comfortably clear the spray.

Step 4: Check the Walls With a Level

Hold a level vertically against each wall where the glass will meet it. Note which direction and roughly how much each wall leans. A fabricator can compensate for out-of-plumb walls – but only if the measurements capture them.

What About the Angles?

Standard neo angle enclosures assume 135° corners. If your tile setter improvised, the true angle may differ. The reliable way to capture it is careful on-site measurement – which is why we confirm everything in person before cutting glass.

Common Measuring Mistakes

Measuring the tile face instead of the curb top, measuring only at one height, ignoring out-of-plumb walls, and assuming a “36 x 36” base is actually 36 x 36 after tiling. Any of these can turn into a door that binds or leaks.

Rough numbers in hand? Bring them to our Lynbrook showroom or request a free estimate – we’ll take it from there, including the final template. Read more about our custom neo angle shower doors, made and installed on Long Island.