Screened Porch Cost by Size Guide
The size layer prints by printed porch sizes: Frame A prices a 12x12 enclose at $2,000 and a 20x20 new build at $20,000, while Frame B prices the same layer per square foot. This guide prices that layer apart.
Orange County, CA · Updated 2026 · Costs shown as ranges — your quote will vary by installer and scope
The size layer, priced apart in both frames
| Frame | Size line | 2026 band |
|---|---|---|
| Frame A (professional-install totals) | 12x12, enclose existing | $2,000 |
| Frame A (professional-install totals) | 12x12, new build | $7,200 |
| Frame A (professional-install totals) | 20x20, enclose existing | $5,000 |
| Frame A (professional-install totals) | 20x20, new build | $20,000 |
| Frame B (per-square-foot installed) | screen existing, per square foot | $10-$25 |
| Frame B (per-square-foot installed) | new build, per square foot | $50-$175 |
Every figure here sits inside its own frame, never averaged. Frame A prices the size layer as per-size totals on two layers, enclose-existing and new-build; Frame B prices the same layer as per-square-foot lines and prints no per-size total. The project whole prices on the screened porch hub; the project-form layer on the enclose-vs-build guide.
Enclose-existing totals by printed size, as published in Frame A
| Porch size, as published | Layer | 2026 band |
|---|---|---|
| 12x12 | enclose existing porch | $2,000 |
| 14x16 | enclose existing porch | $2,900 |
| 20x20 | enclose existing porch | $5,000 |
The enclose lines sit inside the Frame A enclose band of $2,000 to $4,000 at the smaller sizes and print $5,000 at 20x20 as published: each total reads against its own printed footprint only, on the enclose-existing layer.
New-build totals by printed size, as published in Frame A
| Porch size, as published | Layer | 2026 band |
|---|---|---|
| 12x12 | new screened-in porch | $7,200 |
| 14x16 | new screened-in porch | $11,200 |
| 20x20 | new screened-in porch | $20,000 |
The new-build lines sit on the Frame A new-build rate of $25 to $120 per square foot, a different reading from the enclose lines kept apart row by row: a 14x16 reads $2,900 enclosed and $11,200 new in the same frame, never averaged. Frame A also prints an average of about $11,000 for a new 14x16, beside the $11,200 size line as published.
The Frame B reading of the size layer, as published
Frame B prints no per-size totals: its size reading is the per-square-foot pair, $10 to $25 to screen an existing porch and $50 to $175 to build a new one, with project averages of $2,000 to $5,000 on an existing porch and $10,000 to $35,000 for a new build. The printed sizes read as footprints in that frame: 12x12 prints at 144 square feet, 14x16 at 224, and 20x20 at 400, named as dimensions only beside the Frame B rates, with no derived total printed here.
Reading a size quote, as reported lines only
A size quote should name its printed size, its layer, and its frame on every line: a per-size total read in Frame A on the enclose-existing or new-build layer, or a per-square-foot line read in Frame B.
- Printed porch size named beside every band
- Layer named on every line: enclose-existing or new-build
- Frame B rates shown apart from Frame A per-size totals
- Project-form lines read on the companion guide, never folded in here
Frequently asked questions
How much does a screened porch cost by size, as published?
Frame A prices per-size totals: 12x12 at $2,000 enclosed and $7,200 new, 14x16 at $2,900 enclosed and $11,200 new, and 20x20 at $5,000 enclosed and $20,000 new. Frame B prints no per-size total and reads the layer per square foot instead.
What does a 14x16 screened porch print at, as published?
Frame A prints a 14x16 at $2,900 to enclose an existing porch and $11,200 as a new build, with an average of about $11,000 printed for a new 14x16. Those are Frame A lines only, on two layers kept apart.
What does the per-square-foot frame print for the size layer, as published?
Frame B prints $10 to $25 per square foot to screen an existing porch and $50 to $175 per square foot to build a new one, with averages of $2,000 to $5,000 and $10,000 to $35,000 as project lines. It prints no per-size band.
What do the smallest and largest printed sizes print at, as reported?
In Frame A, the 12x12 prints at $2,000 enclosed and $7,200 new, and the 20x20 prints at $5,000 enclosed and $20,000 new. Each total reads against its own printed footprint and layer only.
Why do the two frames price the size layer apart, as reported?
Each frame reads size in its own unit: Frame A as a per-size total on a printed footprint, Frame B as a per-square-foot installed rate across sizes. Both readings print here, named apart on every line.