Replacing a Garden Tub: What to Do With That Huge 90s Platform

Why is everyone tearing out their garden tub?

If your home went up in the Treasure Valley during the 1990s or early 2000s, there is a decent chance the primary bath came with a garden tub: a big oval or hourglass drop-in set into a tiled or oak-trimmed platform, usually parked under a window. Builders installed them as the luxury feature of the era. Two or three decades later, most of them get used a few times a year at best.

The reasons are practical. Many garden tubs hold 60 to 80 gallons or more — enough to outrun a standard tank water heater before the tub fills. Climbing over a wide deck rim gets less appealing every year. And the platform eats a five-by-six-foot chunk of the best floor space in the bathroom while returning almost nothing.

That footprint is exactly why replacing a garden tub is one of the highest-leverage moves in a bathroom remodel. You are not just swapping a fixture — you are reclaiming the largest single block of space in the room.

What are the options for the old garden tub footprint?

Three conversions cover nearly every garden tub project, and which one fits depends on how you actually live — not on what the 90s builder assumed.

If you genuinely bathe, a freestanding soaker gives you a better tub in a fraction of the visual footprint; we cover that swap in detail in replacing a bathtub with a freestanding tub. If nobody has filled the tub in years, a walk-in shower turns the platform into the feature you will use daily — the full case is in replacing a bathtub with a walk-in shower. And if the bathroom already has a workable shower, the footprint can simply become storage: a linen closet, a built-in bench, or an extended vanity run.

What does removing a garden tub and platform involve?

A garden tub is a drop-in, so the tub cannot come out until the deck releases it. The crew disconnects the drain and overflow — often through an access panel in the skirt or an adjacent closet — then demolishes the tile, backer, and framing of the platform from the top down. Most garden tubs are acrylic or fiberglass and come out whole once freed; a rare cast-iron version gets broken up in place.

What surprises homeowners is the state of the floor underneath. The platform was framed straight over the subfloor, so there is no finished flooring inside its footprint — and if the tub rim or deck tile leaked over the years, there may be soft decking to repair. Every garden tub conversion includes floor patching or replacement; the details live in replacing the floor around a bathtub.

What happens to the plumbing?

Almost nothing lines up after a garden tub. The drain sits wherever the old tub’s belly was, and the deck-mounted roman filler and valves die with the platform. A freestanding tub usually needs the drain relocated to its centerline and a floor-mounted or wall-mounted filler roughed in. A shower conversion needs a new drain location, a pressure-balanced valve in the wall, and full waterproofing. A storage conversion means capping and abandoning the lines properly rather than just burying them.

Because the drain, trap, and valve are altered in every version, the project needs a plumbing permit through City of Boise Planning & Development Services or the equivalent desk in Meridian, Nampa, Eagle, or your city. Your contractor pulls it and schedules the rough-in inspection before the new floor or walls close anything up.

One more thing to check while the platform is open: many garden tubs were plumbed with jets. If yours is a jetted unit, there is wiring and a pump to deal with too — that specific scenario is covered in replacing a jetted tub.

The window problem (and why it is solvable)

Nearly every Treasure Valley garden tub sits under a picture window, and the window is the first objection to a shower conversion: can you put a shower where there is glass? Yes — the window either gets a properly waterproofed surround detail with privacy glass, gets downsized during the remodel, or the layout shifts so the shower head and spray pattern keep water off the sill.

For a freestanding tub or storage conversion the window is an asset, not a problem — a soaker under natural light is the look most homeowners were promised by the garden tub in the first place, minus the acre of tiled deck. Browse freestanding tub ideas to see how the proportions change when the platform disappears.

What does a garden tub conversion cost?

The honest answer is a range, because the three conversion paths carry very different scopes. National cost guides such as HomeAdvisor and Angi put basic tub replacement in the low thousands, with tub-to-shower conversions and platform demolition pushing projects into the mid four figures to five figures once tile, glass, and plumbing relocation enter the picture. We break down the local numbers for the shower path in tub-to-shower conversion cost in Boise.

The cost drivers to watch: how far the drain has to move, what the deck was hiding, whether the window gets modified, and how much flooring the platform footprint forces you to replace. A fixed local bid beats any national average — and because a garden tub bath is usually a 90s bath throughout, many homeowners fold the conversion into a broader refresh; see builder-grade bathroom upgrades for the Treasure Valley for what pairs well.