Shower Door Width
Be sure to carefully measure the width and height of your shower or tub entrance before deciding on a new door.
Shower door width. The best width for an entrance to your shower that is both comfortable and aesthetically pleasing is between 22 and 36 inches. Anything over 36 inches needs extra support from a side glass panel to support the weight of the door. A shower opening wider than 36 inches will likely need an additional door panel or a type of shower door designed for wide openings.
In general the width of a shower door should be between 22 inches and 36 inches. Measure in two places. If the width is longer than 36 inches you may have to include an extra panel to the door to support the weight of the structure.
At the top and at the bottom. The minimum shower door width for a better functionality. The average height of a shower door is about 72 inches although the maximum height will depend on the width and weight of the product.
Measure from top to bottom and vertically in two different places to ensure the dimensions of the space are consistent. While you can see standard shower sizes as small as 32 x 32 most people would feel comfortable in a 48 x 36 size shower. Sliding shower doors also known as bypass doors.
Measuring for a shower door. If your home has a little more space available a very common recommendation is to have a shower with minimum dimensions of 60 x 36. Experts recommend determining measurements within 1 16 of an inch.