How much does a screened-in porch cost?

A screened porch costs roughly $70-$130 per square foot installed, including the floor, roof, ceiling, and screen system. A 16x14 (224 sq ft) screened porch typically costs $16,000-$30,000. Adding screening to an existing covered porch is far cheaper at $5-$15 per square foot of wall.

Do I need a permit to build a porch?

Almost always for a covered, screened, or enclosed porch, because it adds roof structure and often a foundation. Permit fees range from $75 to $500+ by jurisdiction. Open, ground-level porches are sometimes exempt below a local size threshold. Confirm with your local building department.

What is the difference between a porch, a deck, and a 3-season room?

A deck is an open raised floor with no roof. A porch is typically attached to the house and usually covered by a roof. A screened porch adds insect screen walls. A 3-season room encloses the space with glass or vinyl window walls for spring-through-fall use, but is not insulated for winter like a full sunroom.

Porch Cost Calculator (2026) | Covered, Screened & 3-Season

Q: How much does it cost to build a porch in 2026?

An open porch runs about $30-$60 per square foot installed in 2026. A covered porch runs $60-$110 per square foot. A screened porch runs $70-$130 per square foot. A 3-season room (glass or vinyl walls) runs $120-$220 per square foot. A 16x12 (192 sq ft) covered porch typically costs $13,000-$26,000.

Enter your porch project

Contractor installed DIY materials only

Includes labor, equipment, contractor markup, and permits.

Common projects

Porch type & size

Porch type

Open = floor only. Covered adds a roof + ceiling. Screened adds screen walls. 3-season adds window walls.

Floor material

Length (ft)

Width (ft)

Floor area192 sq ft

Height above grade (in)

Porches 30 in or higher require a code guardrail. Height also drives the step count.

Roof, railing & finish

Roof type

Ignored for an open porch.

Railing

Electrical (lights / fan / outlets)

Applies to covered, screened, and 3-season porches.

Stairs

Location & permit

State

Permit allowance

ZIP / planning zone (optional)

Uses the first 3 digits as a planning zone (not exact local pricing). Overrides state average when matched.

Your porch estimate

Estimated installed range

Calculating…

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Materials

Labor

Per sq ft

Cost breakdown

Item	Quantity	Estimated range

Planning estimate, not a bid. 2026 ranges informed by published cost guides (HomeGuide, Angi, This Old House) and BLS regional wage data. Get 2-3 local quotes for accurate pricing.

What's not included: foundation work beyond standard footings or a slab, ledger flashing and house-wall tie-in repair, HVAC for a true four-season sunroom, skylights, masonry columns, outdoor kitchens, and grading/drainage on sloped sites.

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Contractor quote ($)

Quote includes

Quote per sq ft

Range check

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Scope risk

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Add a quote amount to compare it against the current estimate.

Methodology & sources

What this is: a planning-range porch calculator informed by 2026 cost guides (HomeGuide, Angi, This Old House), retail material listings, and U.S. government wage data.

How it builds the estimate: the floor is priced per square foot by material (concrete slab, pavers, or a PT/composite deck floor including substructure). A covered, screened, or 3-season porch adds a roof structure and ceiling per square foot; screened adds a screen system; 3-season adds window-wall glazing. Railing is priced per linear foot of open side, and stairs per step from the height.

Crew labor is a loaded billing rate informed by BLS OEWS occupation 47-2031 (Carpenters), then loaded with payroll burden, crew composition, equipment overhead, and contractor profit. The OEWS wage on its own would understate billing rates.

Structural note from the engineer: a covered or screened porch adds roof dead load and wind/snow uplift that an open deck does not. Posts, beams, and footings must be sized for that load and the roof must tie into the house correctly. Treat this tool as a budgeting range, not a structural design — a covered porch should be built to an engineered or code-prescriptive plan.

Per-rate sources are stored in the underlying CSV with each row's source_url, source_date, region, and basis.

Last updated: May 2026. Full methodology →

How much does it cost to build a porch in 2026?

Porch cost is driven first by type — whether it has a roof, screens, or glass walls — and then by size and finish. Open porches are essentially decks; covered, screened, and 3-season porches add structure, so the per-square-foot cost climbs with each step up.

Porch type	Installed / sq ft	16x12 (192 sf)	Best for
Open (roofless)	$30 – $60	$5,800 – $11,500	Front stoop, entry landing
Covered (roof)	$60 – $110	$13,000 – $26,000	Shaded sitting porch
Screened	$70 – $130	$16,000 – $30,000	Bug-free 3-season use
3-season (glass / vinyl walls)	$120 – $220	$26,000 – $44,000	Spring-through-fall room

What drives porch cost

Type — each step from open → covered → screened → 3-season adds roof, ceiling, walls, and glazing.
Floor — a concrete slab ($6-$12/sf installed) is far cheaper than a raised composite deck floor ($32-$60/sf with substructure).
Roof — a gable roof costs more than a shed roof but sheds snow and water better and looks more finished.
Foundation — a covered porch needs footings sized for roof load; sloped or rocky sites add cost.
Electrical — a ceiling fan, lights, and code outlets add roughly $400-$2,500.
Region — California and New York labor run 30-35% above the national average.

Porch type, explained

Open porch

A roofless raised floor at the entry — effectively a deck used as a front porch. Cheapest option ($30-$60/sf). A guardrail is required once the floor sits 30 inches or more above grade.

Covered porch

Adds a roof and finished ceiling over the floor ($60-$110/sf). The roof must be framed for local snow and wind load and tied into the house wall with proper flashing. This is the classic shaded sitting porch.

Screened porch

A covered porch with insect-screen walls and a screen door ($70-$130/sf). It delivers most of the comfort of an enclosed room at a fraction of a sunroom's cost, and is the most popular upgrade in the Southeast.

3-season room

Encloses the porch with vinyl or single-pane glass window walls ($120-$220/sf) for spring-through-fall use. It is not insulated or conditioned for winter like a full four-season sunroom, which is why it costs less.

Common mistakes & questions

Treating a covered porch like a deck — the roof adds load; posts, beams, and footings must be sized for it.
Skipping proper roof-to-wall flashing — the #1 source of water damage where a porch roof meets the house.
Undersized footings — covered-porch posts need footings below the frost line, sized for roof uplift and bearing.
Forgetting egress and electrical code — enclosing a porch can trigger outlet, lighting, and egress requirements.
Calling a 3-season room a sunroom — a true four-season sunroom is insulated and conditioned and costs much more.
Ask your contractor: footing depth and size, roof load rating, house-wall flashing detail, and whether a permit and inspection are included.

When this estimate is wrong

Hard access (rural, second-floor, no parking nearby) adds 10-25%.
Trip charge minimums — most contractors have a $250-$500 minimum, even for small jobs.
Sloped or rocky sites — grading, retaining, or deeper footings add cost beyond a flat-lot assumption.
Roof tie-in complexity — matching an existing roofline or working around second-story windows adds labor.
Seasonality — winter/early spring quotes are often 10-20% lower than peak summer.
Permit timeline — covered/structural porches add days to weeks; failed inspections add cost.

Porch Cost Calculator (2026)