Tool #132 · Specs · Checklists · FL Code Reference · (561) 316-7450
Select a fixture to see FL code-compliant rough-in dimensions. All dimensions in inches unless noted.
| Fixture | Side Clearance | Front Clearance | Between Fixtures |
|---|---|---|---|
| Toilet | 15" CL to wall (18" FL preferred) | 21" min (24" FL preferred) | 30" CL to CL |
| Lavatory | 15" from any obstruction | 21" min | 30" CL to CL |
| Walk-In Shower | — | 24" in front | N/A |
| Bathtub | — | 24" one long side | N/A |
| Bidet | 15" CL to wall | 21" min | 30" CL to CL |
| Urinal | 15" CL to wall | 21" min | 30" CL to CL |
Select a fixture to see FL code-compliant rough-in dimensions.
| Material | Supply | DWV | Underground | FL Note |
|---|---|---|---|---|
| Type L Copper | ✓ Approved | ✓ Approved | With sleeve | Standard for FL supply |
| Type M Copper | ✓ Approved | ✓ Approved | Not recommended | Thin wall, FL soils |
| PEX-A | ✓ Approved | Not for DWV | With sleeve | Most popular in new FL construction |
| PEX-B / PEX-C | ✓ Approved | Not for DWV | With sleeve | FL approved, Zurn/Uponor fittings |
| CPVC | ✓ Approved | ✓ Approved | ✓ Approved | Common in FL commercial |
| PVC Sch 40 (DWV) | Not for supply | ✓ Approved | ✓ Approved | FL standard DWV material |
| ABS | Not for supply | ✓ Approved | ✓ Approved | Less common in FL |
| Cast Iron | Not for supply | ✓ Approved | ✓ Approved | Preferred for stacks in FL (noise) |
| Polybutylene (PB) | PROHIBITED | PROHIBITED | PROHIBITED | Class action recall — never use |
| Galvanized Steel | Replacement only | Replacement only | Not recommended | Cannot use in new FL construction |
Use DFU values to size drain pipes. Required by FL Plumbing Code Table 709.1.
| Fixture | Private (DFU) | Public (DFU) | Trap Size |
|---|---|---|---|
| Toilet | 4 | 6 | Floor flange |
| Bathtub | 2 | 2 | 1-1/2" |
| Shower | 2 | 2 | 2" |
| Lavatory (sink) | 1 | 2 | 1-1/4" or 1-1/2" |
| Kitchen Sink | 2 | 4 | 1-1/2" |
| Dishwasher | 2 | 2 | Connects to K sink |
| Garbage Disposal | +2 | +2 | Add to K sink |
| Clothes Washer | 3 | 3 | 2" standpipe |
| Floor Drain | 2 | 2 | 2" |
| Laundry Tub | 2 | 2 | 1-1/2" |
| Bidet | 2 | 2 | 1-1/2" |
| Urinal | 4 | 4 | 2" |
| Mop Sink | 3 | 3 | 2" |
| Drinking Fountain | 1 | 1 | 1-1/4" |
| Food Service Sink | 2 | 2 | 1-1/2" |
| Pipe Size | Max DFU (Horizontal) | Max DFU (Vertical) | Note |
|---|---|---|---|
| 1-1/4" | 1 | 2 | Lavatory only |
| 1-1/2" | 3 | 4 | No toilet |
| 2" | 6 | 10 | No toilet on 2" horizontal |
| 3" | 20 | 48 | No toilet on 3" horizontal |
| 4" | 160 | 240 | Max for residential stack |
| 5" | 360 | 540 | Commercial |
| 6" | 620 | 960 | Commercial |
| Vent Type | FL Allowed? | Use Case |
|---|---|---|
| Individual Vent | Yes — Preferred | One fixture, direct to stack or roof |
| Common Vent | Yes | Two fixtures on same horizontal branch |
| Wet Vent | Yes — limited | Bath group fixtures, sized up |
| Circuit Vent | Yes | Battery of fixtures, commercial |
| Stack Vent | Yes | Top of soil stack extended through roof |
| AAV (Air Admittance Valve) | Limited use | Islands, remodels — cannot serve main stack or toilet |
| Cheater Vent (auto vent) | Not allowed | Old style spring-loaded — not FL code |
| Supply Size | Max Fixtures | Max Length | Pressure Drop/100ft |
|---|---|---|---|
| 1/2" copper | 1–3 fixtures | 30 ft from manifold | ~10 PSI |
| 3/4" copper | 4–8 fixtures | 60 ft from main | ~4 PSI |
| 1" copper | 9–15 fixtures | 100 ft from main | ~2 PSI |
| 1/2" PEX | 1–2 fixtures | 25 ft from manifold | ~12 PSI |
| 3/4" PEX | 3–6 fixtures | 50 ft from manifold | ~5 PSI |
| 1" PEX | 7–12 fixtures | 80 ft from main | ~3 PSI |
| Scope | Price Range | Notes |
|---|---|---|
| Toilet rough-in | $150–$300 | Per toilet, includes flange |
| Sink rough-in (bath) | $100–$200 | Supply + drain stub-outs |
| Walk-in shower rough-in | $250–$500 | Includes pan liner if tiled |
| Tub/shower combo rough-in | $200–$400 | Access panel required |
| Kitchen sink rough-in | $150–$300 | Includes DW branch |
| Dishwasher rough-in | $100–$200 | Supply + air gap |
| Water heater rough-in | $200–$400 | Includes pan + expansion tank |
| Washing machine rough-in | $150–$300 | Includes overflow pan |
| Full bathroom (3 fixtures) | $600–$1,200 | Toilet + sink + shower |
| Full kitchen | $450–$900 | Sink + DW + disposal |
| Whole-house new construction | $3,500–$8,000 | Includes permit coordination |
| Failed inspection fix | $250–$1,000 | Depends on scope of failure |
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On this page, Florida rough in estimates run about $3,500-$8,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.
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.
It depends on the cause and your specific policy. Sudden, accidental damage is more often covered than gradual wear-and-tear or maintenance - confirm the details with your insurer.
Many common jobs are completed the same day, while larger projects can take longer. Your licensed plumber can confirm a timeline after assessing your home.
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 Rough In Calculator for typical Florida homes.
From this page: On this page, Florida rough in estimates run about $3,500-$8,000, depending on home size, materials, and project scope. Use the calculator above for a Florida-specific estimate.
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.
Curated Florida tools and resources related to this page.
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.