Convert a Deck into a Screened Porch
Open Deck → Screened Porch
Enclose an existing deck with screens, a roof, and a door to create a bug-free outdoor living space you can enjoy from spring through fall.
Cost Range
$5,000 – $18,000
Timeline
2–6 weeks
Materials Cost
$4,600
Permits Cost
$550
Steps
Assess the Deck Structure
Verify the deck can support a roof. Check posts, beams, joists, and footings. A structural engineer may be needed if the deck was not built to support a roof load plus wind and snow loads.
Estimated time: 3 days
Build or Extend Posts for the Roof
If existing railing posts are not tall enough, install 4x4 or 6x6 posts from the deck frame up to the planned roof height (minimum 8 feet). Bolt posts through the rim joist or beam.
Estimated time: 4 days
Frame and Install the Roof
Build a shed-style or gable roof frame. Install rafters, sheathing, and roofing material that matches your house. Tie into the existing house wall with proper flashing.
Estimated time: 7 days
Frame Screen Walls and Door
Build 2x4 frames between posts for screen sections. Leave an opening for a screen door. Use horizontal rails at 36 inches for a kickboard area below the screens.
Estimated time: 4 days
Install Screening and Door
Staple fiberglass or aluminum screen mesh to the frames. Cover staples with screen moulding strips for a clean look. Install a pre-hung screen door with a closer.
Estimated time: 3 days
Add Ceiling Fan, Lighting, and Trim
Install an outdoor-rated ceiling fan and light fixtures. Add trim around screen frames, paint or stain all framing to match the house, and add any furniture or decor.
Estimated time: 3 days
Materials
| Material | Est. Cost | Required |
|---|---|---|
| Pressure-Treated Posts (6x6) | $300 | Required |
| Roofing Materials (sheathing, shingles, flashing) | $2,500 | Required |
| Rafters and Framing Lumber | $800 | Required |
| Fiberglass Screen Mesh | $200 | Required |
| Screen Moulding Strips | $100 | Required |
| Pre-Hung Screen Door | $250 | Required |
| Outdoor Ceiling Fan | $200 | Optional |
| Outdoor Light Fixtures | $150 | Optional |
| Paint or Stain | $100 | Required |
Permits
Building Permit
Most jurisdictions require a permit for adding a roof structure to a deck. Involves structural plan review.
$400
Electrical Permit
Required if adding a ceiling fan or light fixtures with new wiring.
$150