Standard & ADA rough-in heights for all plumbing fixtures — FL code requirements, toilet rough-in distance, shower valve placement
ADA + STANDARDToilet rough-in distance is measured from the finished wall to the center of the closet flange (drain). This is NOT the toilet-to-wall gap — it's the drain centerline from the wall behind the toilet.
Standard: 12". Older FL homes may have 10" or 14". Measure from wall to drain center.
Leave 0 if measuring to finished wall face. Add 0.5" for tile, 4" for typical stud wall.
| Rough-In | Common In | Toilet Availability | Notes |
|---|---|---|---|
| 10" | Pre-1960s homes | Limited selection | Older FL plumbing |
| 12" | All eras | Full selection | Standard — widest choice |
| 14" | Some older FL | Good selection | Less common today |
| Fixture | Cold Supply | Hot Supply | Drain CL |
|---|---|---|---|
| Toilet | 6–8" from floor, left | N/A | 12" from wall (std) |
| Lav sink | 20" from floor, 4" R of CL | 20" from floor, 4" L of CL | 18–20" from floor |
| Kitchen sink | Under sink box | Under sink box | 15–17" from floor |
| Shower | Valve center | Valve center | 2" trap, floor level |
| Tub/shower | 28–32" from floor | 28–32" from floor | 6" from end wall |
| Dishwasher | Under sink | N/A | Air gap at sink |
| Washing machine | 48" from floor, L | 48" from floor, R | 34–36" standpipe ht |
| Water heater | Cold: right side | Hot: left side | Floor drain nearby |
| Hose bib | 24" from grade (exterior) | N/A | N/A |
FPC 405.3.1 — Toilet location: Toilet shall be located a minimum of 15" from its centerline to any side wall, partition, or cabinet. This applies to BOTH sides. For ADA: minimum 18" from one side (transfer side).
FPC 405.3.2 — Toilet clearance: Minimum 21" clearance in front of toilet (measured to any obstacle). ADA requires 60" minimum turning radius or 30"×48" clear floor space.
FPC 412.2 — Shower receptors: Shower floor shall slope uniformly to drain at 1/4" per foot minimum. Curb height 2" minimum. Threshold maximum 1/2" for accessibility compliance.
FPC 424.6 — Grab bar blocking: FL requires blocking or solid backing in shower/tub areas of new residential construction to allow future grab bar installation (FBC 11-4.23.4). 2×8 blocking required between studs.
FPC 603.2 — Water heater location: Gas WH in garage requires 18" minimum elevation of ignition source above garage floor. Electric WH may be floor-mounted. Drip pan required for WH in conditioned space or above finished area.
FL Building Code Chapter 11 adopts the ADA Standards for Accessible Design for all new commercial construction and some residential. Key fixture requirements:
Lavatories (FBC 1109.2): Rim height max 34"; knee clearance min 27" high × 30" wide × 19" deep; clear floor space 30"×48" in front; supply/drain insulated or covered to prevent burns.
Water closets (FBC 1109.4): Height 17"–19" to top of seat; 60" clear floor space side approach OR 66"×56" for front approach; flush control on open side.
Shower stalls (FBC 1109.6): 36"×36" for transfer shower or 30"×60" for roll-in shower; seat required for transfer-type; controls between 15"–48" AFF; hand shower on 60" minimum hose.
Bathtubs (FBC 1109.5): Foot controls at 60" AFF; head controls at 60" AFF max 15" from foot wall; grab bars at 24" front, 12" back, side wall full length.
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Costs vary by scope, home size, and your Florida region. Use the calculator above for a Florida-specific estimate rather than a one-size-fits-all price.
Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.
In Florida, minor maintenance may be DIY, but anything beyond that generally calls for a licensed plumber, and many jobs require a permit and inspection. When a permit, gas work, or your main water or drain lines are involved, hire a Florida-licensed plumber.
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Planning estimate, not a quote — confirm with a licensed Florida plumber. Confidence is qualitative: ranges reflect this page’s Florida assumptions, not a guaranteed price.
Estimates on this page are Florida-specific and reflect Fixture Rough In Heights for typical Florida homes.
From this page: Costs vary by scope, home size, and your Florida region. Use the calculator above for a Florida-specific estimate rather than a one-size-fits-all price.
Your actual cost depends on your home's condition, layout, and local labor and permit rates.
From this page: Pricing depends on the size and layout of your home, the pipe materials and fixtures you choose, your Florida region and local labor rates, and permit fees. Work that is more complex or harder to access generally costs more.
Generally raises cost: harder access, older homes, added permits and inspections, premium fixtures or materials, and emergency or after-hours work.
Generally lowers cost: easy access, bundling several items in one visit, standard fixtures, and off-peak scheduling.
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Last reviewed: July 1, 2026 (US Eastern)
Reviewed by the FL Plumbing Tools editorial team.
Sources: Florida plumbing cost research and Florida Building Code / local authority-having-jurisdiction (AHJ) permit references.
Florida reference: Estimates and guidance reflect Florida labor rates, permitting, hard water, humidity, and coastal conditions.
Updates: Reviewed periodically and updated as Florida codes, permit fees, and market rates change.