Walk-In Shower vs Walk-In Tub for Seniors: Which One Did a Palm Coast Couple Choose After One Fall?
- A walk-in tub takes ten to fifteen minutes to fill and drain while you sit in it, needs a water heater most Palm Coast houses do not have, and costs several times a curbless shower.
- A curbless shower with a bench, a hand shower, and grab bars on real blocking removes the step that caused the fall. It is the choice most of my customers make once they see both.
- Neither is wrong. A walk-in tub is right for someone who soaks for therapy and has the heater for it. This couple did not.
- The blocking for grab bars goes in during any remodel now, whether or not the bars do.
The situations described here are composites drawn from the types of jobs and decisions we encounter regularly. Names and specific figures are illustrative.
He fell stepping over the tub wall on a Tuesday morning, caught himself on the towel bar, and pulled it out of the drywall. Nothing broken. His daughter, who lives in Jacksonville, called me that afternoon about a walk-in tub she had seen advertised on television, and she wanted it installed before it happened again. I told her I would come look at the bathroom and lay out walk-in shower vs walk-in tub for seniors side by side, and that I would not sell her either one on the phone, because the right answer depended on a water heater she had probably never thought about.
This post is that visit, what each option actually involves in a Palm Coast house, and what the couple chose once they had the whole picture.
What the ad does not say about a walk-in tub
A walk-in tub has a watertight door in the side. You open it, step in over a low threshold, sit on the built-in seat, close the door, and then fill the tub. You cannot fill it first; the door is on the side. So you sit, undressed, while sixty to eighty gallons of water rises around you, which on a typical household supply is eight to twelve minutes. When you are done, you sit while it drains, because the door cannot open until the water is below the sill. Another five to ten minutes. The fall risk in a tub is at the step, and the walk-in tub solves that. What it adds is twenty minutes of sitting in a wet tub with the air conditioning on, which for an older person is its own problem.
Then the water heater. A walk-in tub holds more than a standard tub because the seat raises your body and the water has to reach your chest. Filling one with comfortably hot water takes most of an eighty-gallon tank; a fifty-gallon tank, which is what nearly every Palm Coast house has, runs cold before the tub is full. The installers in the ad rarely mention that, and the homeowner finds out the first evening. Upsizing the heater is a separate job, a larger tank in a garage closet that may not fit one, and it is the first thing I check on any walk-in tub inquiry. Their closet fit a fifty. Barely.
And the price. A walk-in tub is a manufactured unit that costs several times what a shower conversion costs before installation, and the installation includes a drain that has to handle a fast dump valve, a supply sized for a fast fill, and often an electrical circuit for the jets and heater. It is a real product with a real use, but the use is narrower than the ad suggests.
What a curbless shower with the right details does
The fall was at the tub wall. Remove the tub, and the step is gone. A curbless shower has a floor that slopes to a linear drain with no curb to step over, which is the design the 2010 ADA Standards for Accessible Design[1] describe for roll-in showers and which works just as well for someone who walks in. Add a fold-down or built-in bench so he can sit to wash, a hand shower on a slide bar so the water comes to him, a thermostatic valve set so the water cannot exceed a safe temperature, and grab bars at the entry and by the bench mounted into solid blocking. That is a shower he can use standing or sitting, alone or with help, that fills in zero minutes and drains as he uses it.
The temperature part matters more for older adults than people think. The CDC’s guidance on scald prevention[2] recommends a water heater set no higher than 120 degrees, and skin that has thinned with age burns faster. A thermostatic valve holds the set temperature regardless of what the rest of the house is doing. On any bathroom I do for a couple past seventy, that valve goes in whether they asked or not.
The plumbing is the tub-to-shower sequence I laid out in the post on what changes in the plumbing during a tub-to-shower conversion: the drain goes to two inches, the valve moves into the wall, and the drain location moves to suit the linear drain, which in this bathroom meant the slab trench in the post on moving a shower drain eighteen inches on a Palm Coast slab.
The blocking, which I put in every wall now
A grab bar screwed into drywall pulls out under a falling person’s weight, which is what the towel bar had just demonstrated. A grab bar screwed into a two-by-ten block let into the studs holds. The blocking costs a few dollars and twenty minutes when the wall is open and cannot be added later without opening it again. I put blocking at the standard heights on every shower wall I rough in now, on every remodel, whether or not the homeowner is thinking about bars. The house will have someone older in it eventually, and the wall will be ready. This one got bars on the first day.
What they chose, and why
The curbless shower. Not because the tub was wrong, but because the things the tub was good at were not the things he needed. He does not soak for therapy; he showers. The house had a fifty-gallon heater in a closet that would not take an eighty. The daughter’s concern was the fall, and the shower removed the step. And the shower cost a fraction of what the tub would have with the heater upgrade, which meant the money left over paid for a comfort-height toilet and a raised vanity in the same bathroom, which were the next two things on the list once we were looking at the room that way.
If he had been a soaker, with arthritis a warm bath helps, and the closet had fit an eighty, I would have said the tub was worth a look. I have installed them for exactly that person, and a year later they use them daily. The couple who do not soak stop using the tub within a few months and go back to the hall shower, which is the worst outcome for the money.
What the finished bathroom has
A curbless shower with a linear drain against the back wall, a tiled bench, a thermostatic valve at a seated reach, a hand shower on a slide bar, three grab bars into blocking, a comfort-height toilet with a bar beside it, and a vanity two inches taller than the old one. The Florida Building Code, Residential[3] edition does not require any of it in a private home; the point is that it costs almost nothing extra to build a bathroom this way when the walls are already open, and it costs a fall not to. The EPA WaterSense[4] hand shower is the same 1.8 gallons a minute as any other; the drain size is the same two inches. Nothing about it looks like a hospital.
What people ask after a fall
Is a walk-in tub or a walk-in shower better for seniors? A shower for most people: no wait to fill, no sitting in a draining tub, no water heater upgrade. A tub for someone who soaks for therapy and has the heater to fill it.
How long does a walk-in tub take to fill? Eight to twelve minutes, sitting in it, on a normal supply. Then five to ten to drain before the door opens.
Do I need a bigger water heater for a walk-in tub? Almost always. A fifty-gallon tank runs cold before it is full. Plan on an eighty, and check that it fits.
What makes a shower safe for an older person? No curb, a bench, a hand shower, a thermostatic valve, and grab bars on blocking. In that order.
How much does each cost? The shower is the tub-to-shower conversion range on the service page plus tile. The tub is several times that before the heater.
The plumbing phases for a bathroom like this, and where the schedule slips, are the post on rough-in versus trim-out on a remodel that slipped three weeks. What the same bathroom’s plumbing costs line by line is the post on the calculator that said $3,000 and the quote that said $7,000, and why the permit on it is not optional, even for a bathroom built for safety, is the post on the unpermitted bathroom caught at sale. And the master bath that got the same bench and blocking is the bathroom remodel plumbing guide from demo to trim-out.
What the daughter said
That she was glad she called before ordering the tub. He showers every morning, sitting on the bench with the hand shower, and has not needed a grab bar yet, which is what they are for. The towel bar is back on the wall, into blocking this time.
If a fall has your family weighing walk-in shower vs walk-in tub for seniors, the first question is what the person actually uses a bathroom for, and the second is what size the water heater is. Our remodel plumbing service in Palm Coast answers both under the $96 walkthrough, applies it to the work, and builds either one with the blocking in the wall.