The 1980s Garden Tub Bath, and How a Tub-to-Shower Conversion Fixes It

The layout everybody recognizes

If your house went up in Fort Worth in the 1980s or 1990s, you may already know this bathroom. A garden tub sits under a window on a tiled platform, claiming the biggest block of floor in the room. Beside it is a separate shower, usually small, usually behind a framed glass door that has seen better days. The toilet lives in a narrow alcove around a corner. The vanity is shorter than it should be because the tub took the wall it needed.

It was the plan of its era. Builders put the tub in as the showpiece and arranged everything else around it. Thirty years later the tub gets filled a couple of times a year, the shower gets used twice a day, and the room is organized backwards.

What the tub is costing you

Floor space, first. A garden tub with its deck can cover the same area as a generous walk-in shower, and it's the least-used fixture in the room. Then daily use: the small shower is the one you stand in every morning, and it's the one that got the least room. Then upkeep. The deck tile, the grout at the tub rim, and the caulk lines are where water finds its way into the framing on an old platform tub.

What a conversion does

A tub-to-shower conversion pulls the garden tub and its platform out and builds a walk-in shower in the space it leaves. In the typical 1980s layout that shower can be big enough for a real bench, a niche or two, and frameless glass, because the tub deck was already the largest footprint in the room. Full-height tile on the walls, a proper pan, and glass that lets light through change how the whole bath looks and feels.

The drain decides the budget. Trading a tub for a walk-in shower usually keeps the drain close to where it is, which is what keeps the number down. Going curbless or moving the drain is where it climbs. On a slab house, staying near the existing drain keeps concrete cutting to a minimum. Moving the drain across the room means cutting the slab, and moving plumbing on a slab runs $3,000 to $10,000 per fixture, depending on access and routing.

What happens to the old shower

With the tub gone, the old separate shower stall becomes free space, and that's where the layout opens up. Some homeowners give it to the vanity, so a double vanity finally fits. Some turn it into a linen closet or a water closet with its own door, which pulls the toilet out of that awkward alcove. If you still want a bath, a freestanding tub takes less floor than the platform did and is a far better place to sit than a fiberglass garden tub from 1992.

Curbless or not

Done right, a curbless floor slopes to a linear drain, the waterproofing membrane runs under the whole shower floor, and the transition to the rest of the bath is flush. Done wrong, water leaves the shower. It's a good feature and a technical one, and it's where the number climbs, because the slab often has to be recessed to get the slope. If curbless is on your list, say so at the first visit so it's planned from the first drawing.

What we plan for

Before demolition we look at three things. Where the existing drain sits and whether the new shower can use it. What the supply and drain lines are made of behind the tub deck, since a house from the 1980s can hide surprises there just like an older one. And how the bath fan is ducted, because a bigger shower puts more steam in the room, and a fan that dumps into the attic is a slow problem we'd rather fix while the ceiling is open.

Where this fits in the numbers

A conversion inside a primary bath usually sits in the primary bath range, $63,000–$120,000, toward the low end when the drain stays put and the rest of the room is refreshed in place. In a hall bath the same work sits in the $20,000–$55,000 range. We bill cost-plus with a transparent markup, so you see real costs instead of a padded bid, and you get the number before we start.

If you're standing in one of these bathrooms, we can tell you in one walkthrough whether your drain is staying where it is. That single answer tells you most of what the project will cost. Read more about how we approach a tub-to-shower conversion, then schedule a free consultation.