Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
Total siding installation cost
$10,050
Siding squares needed
18.0
Siding material cost
$4,950
Installation labor cost
$4,500
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How to use this
- 1Enter total exterior wall area (sq ft).
- 2Enter siding material rate ($/sq ft).
- 3Enter installation labor rate ($/sq ft).
- 4Enter trim / j-channel allowance ($).
- 5Enter old siding removal (0 if new build) ($/sq ft).
- 6Read your total siding installation cost on the right — it updates as you type.
- 7Hit Share to keep the scenario or send it to someone.
About this calculator
Vinyl siding is priced in the trade by the 'square,' a roofing-and-siding industry unit equal to 100 square feet of wall coverage, and total installed cost combines the siding panel material rate, a house wrap/moisture barrier layer, trim and J-channel around windows and corners, and installation labor. This calculator converts your home's total wall square footage into squares, applies separate rates for material and labor, and adds a trim allowance based on linear footage of openings. 2026 US national averages run about $3.50-$7.50 per square foot installed for standard 0.040-0.044 gauge vinyl siding, or roughly $350-$750 per square, with premium insulated or thicker-gauge vinyl running $6-$12 per square foot. Removal of old siding, if needed, typically adds $0.50-$1.50 per square foot on top of these installed rates.
Worked example
Using the values the calculator loads with:
Inputs
- Total exterior wall area: 1800 sq ft
- Siding material rate: 2.75 $/sq ft
- Installation labor rate: 2.5 $/sq ft
- Trim / J-channel allowance: 600 $
- Old siding removal (0 if new build): 0 $/sq ft
Results
- Total siding installation cost: $10,050
- Siding squares needed: 18
- Siding material cost: $4,950
- Installation labor cost: $4,500
What each field means
Inputs
- Total exterior wall area (sq ft)
- The total exterior wall area used in the calculation, measured in sq ft. Starts at 1800 sq ft so you have a working example on load. Accepted range: 200–10000 sq ft.
- Siding material rate ($/sq ft)
- The siding material rate used in the calculation, measured in $/sq ft. Starts at 2.75 $/sq ft so you have a working example on load. Accepted range: 1.5–8 $/sq ft.
- Installation labor rate ($/sq ft)
- The installation labor rate used in the calculation, measured in $/sq ft. Starts at 2.5 $/sq ft so you have a working example on load. Accepted range: 1–6 $/sq ft.
- Trim / J-channel allowance ($)
- The trim / j-channel allowance used in the calculation, measured in $. Starts at 600 $ so you have a working example on load. Accepted range: 0–3000 $.
- Old siding removal (0 if new build) ($/sq ft)
- The old siding removal (0 if new build) used in the calculation, measured in $/sq ft. Starts at 0 $/sq ft so you have a working example on load. Accepted range: 0–2 $/sq ft.
Results
- Total siding installation cost
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Siding squares needed
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Siding material cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Installation labor cost
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
What is a 'square' of siding?
A square is a standardized unit in siding and roofing equal to 100 square feet of wall or roof coverage — contractors and suppliers use it because it makes material ordering and labor pricing easier to standardize across jobs of different sizes.
Is insulated vinyl siding worth the extra cost?
Insulated vinyl siding has a foam backing that adds R-value (typically R-2 to R-5) and helps flatten out wall imperfections for a smoother look, commonly costing 30-60% more than standard vinyl — it's most worth it in colder climates where the added insulation offsets heating costs over time.
Does removing old siding always add cost?
Yes, if there's existing siding to remove — asbestos or wood siding removal can be more involved (and sometimes requires special disposal handling for asbestos) than removing old vinyl, so get a specific quote if your home has anything other than existing vinyl or wood lap siding.
How long does vinyl siding installation typically take?
A standard single-family home (1,500-2,500 sq ft of wall area) typically takes a crew 3-7 days to install, depending on complexity of the home's shape, number of windows/corners needing trim work, and whether old siding needs to be removed first.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
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Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Vinyl Siding Cost Per Square Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/vinyl-siding-cost-per-square
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/vinyl-siding-cost-per-square" target="_blank" rel="noopener">Vinyl Siding Cost Per Square Calculator — RevenueLab</a> (2026).</p>
Source: [Vinyl Siding Cost Per Square Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/vinyl-siding-cost-per-square) (2026).