Screen Porch Addition Cost Calculator
Estimate the cost of adding a screen porch or three-season room based on size, screen system, and features.
Last updated: March 25, 2026
Screen Porch Addition Cost Calculator
Estimate the cost of adding a screen porch or three-season room based on size, screen system, and features.
Estimated Total
$20,650
Itemized Breakdown
This calculator provides estimates based on national averages adjusted for your region. Actual costs may vary significantly based on specific project conditions, contractor availability, material prices, and local market factors. Always get at least 3 quotes from licensed, insured contractors before starting your project.
Want the full picture?
Read our complete Screen Porch / Three-Season Room Addition cost guide with material comparisons, contractor tips, savings strategies, and regional pricing data.
Quick Cost Reference
Cost by Tier
Basic 12x16 (192 sq ft) screen porch added to existing deck - wood framing, aluminum screening, simple shed roof, no electrical
16x20 (320 sq ft) three-season room with composite decking, ceiling fans, recessed lighting, screen or EZE-Breeze panels, proper footing
20x24 (480 sq ft) fully enclosed three-season room with vaulted ceiling, bead board ceiling, ceiling fans, built-in outdoor kitchen bar, premium windows or screen systems, full electrical