Minimum Shower Door Width

The minimum interior shower size is 30x30 inches or 900 square inches in which a disc 30 inches in diameter must fit.

Minimum shower door width. Also the door will need to be a minimum of 22 wide and no more than 36 wide. Bypass or sliding shower doors are a common solution for a small bathroom or bathtub showers. Alcove shower bathtubs commonly are 60 inches wide and their bypass or sliding doors are usually about 58 inches. Doors should be at least 32 wide.

For 32 of clear width the door width from jamb to jamb should be 34. Consist of two and sometimes three panels that slide along each other on tracks. When designing your shower enclosure keep in mind that each glass panel needs to be at least 4 1 2 wide which is the minimum width for tempering glass and supporting the hardware. The realistic minimum shower door width tends to be 550mm when the space is perhaps tighter but when the customer still wants to make the most of the opening into the shower space.

When framing the alcove do not add any extra space to accommodate the shower tub. This dimension might be direct to stud or between two wall coverings. Normally with smaller single frameless shower doors the glass thickness is 8mm this keeps both the weight and cost down. It must be exactly 60 inches.

To meet ada universal design standards plan on 34 of clear opening or a 36 door. The interior shower size is at least 36x36 inches. That is 30 inches by 30 inches. Since 34 is not a standard door width most designers spec a 36 door which is not usually a special order.

Shower floor minimum size is usually mandated to be at least 30 inches square.