72 Inch Shower Curtain
A 72 inch shower curtain is the size the rest of the aisle is measured against, and for most rooms it is simply correct. Sixty inches of tub, six to twelve inches of surplus at each side, a rod around seventy-five inches off the floor: that arithmetic has not moved in decades, and four hundred and ninety-three designs here answer to it.
Why this became the default
Builders settled on a five-foot alcove tub and hardware followed. A rod spanning that alcove sits about fifteen inches above the rim, which puts this drop a little clear of the floor and a few inches inside the tub wall. Width behaves the same way: a panel broader than its opening has to gather, and that gather stops spray tracking out at the corners. Our standard size guide sets the common numbers side by side.
Checking a 72 inch shower curtain against your tub
Two measurements settle it. First, from the top of the rod straight down to the tub rim; anywhere near seventy inches and this is your size, since rings and header take two or three. Second, the span of the opening wall to wall, which should sit under about sixty inches. If the first figure comes back higher than expected, because tile runs to the ceiling or the tub has a deep apron, the 80-inch drops pick up where this length stops.
When the default stops working
Three situations, mostly. A rod pushed high for structural reasons, leaving daylight underneath. A narrow enclosure where a full-width panel bunches against the glass instead of hanging flat, which is what the narrow stall widths exist for. And a cramped room closing over a small tray rather than a tub, better served by the compact cuts. Past that it is decoration: a soft farmhouse floral, a semi-clear panel that keeps the light, or the inky kraken print.
Standard-size questions
Is 72 by 72 still the size most bathrooms take?
Yes, a 72 inch shower curtain remains the default for alcove tubs. A five-foot tub in a five-foot alcove with a rod at conventional height takes it without alteration. The exceptions are high-mounted rods and narrow enclosures.
What rod width does this size suit?
Anything up to about sixty inches of span. That leaves roughly six inches of gather at each end, which holds the panel against the wall when you pull it closed. Past sixty-six inches the fabric goes flat and the corners begin to leak.
Will this drop clear the floor over a tub?
It should finish an inch or two inside the tub wall, not at floor level. From a rod at seventy-five inches, seventy-two of drop minus three for rings and header lands there. If yours pools on the tile, the rod is lower than you think.
What is the difference between 70 and 72 inches?
Practically nothing in use. Both hang from the same hardware and both gather over a standard tub. Two inches only matters when your hem is already borderline at the rim.
Can I use this length in a walk-in with no tub?
Yes, provided the rail sits at normal height. Aim for half an inch of clearance above the shower pan so the hem never stands in water. A rail fixed near the ceiling needs a longer drop instead.
Do I need two panels for a wide tub?
Only past about seventy inches of opening. Below that a single panel gathers fine. Above it, two meeting in the middle close more reliably, provided the overlap is generous.