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Free Siding Calculator - Cost to Side a House ($8K-$30K)

Free siding calculator. Estimate squares and cost to side a house, from $8,000 to $30,000 for most homes with vinyl, fiber cement, wood, or aluminum. Materials and labor, 2026.

Built by a 20-year contractor By Brad
House Dimensions

e.g. 50

e.g. 30

e.g. 9

~15 sq ft each subtracted

~20 sq ft each subtracted

or

Siding Estimate

Perimeter160.00 linear ft
Gross Wall Area1,440.00 sq ft
Window/Door Deductions-160.00 sq ft
Net Siding Area1,280.00 sq ft
Squares12.8 squares (100 sf each)

Accessories

Starter Strip160.00 linear ft
J-Channel138.00 linear ft
Corner Posts4 posts

Cost Breakdown

Material Cost$1,280 - $6,400
Labor ($2-$4/sf)$2,560 - $5,120

Estimated Total (Materials + Labor)

$3,840 – $11,520

1,280.00 sq ft of vinyl siding

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Siding Cost & Material Guide

Per-square-foot pricing, material lifespans, and installation requirements for siding.

How Much Does New Siding Cost in 2026?

New siding costs about $3–$15 per square foot installed for vinyl, fiber cement, and wood. This Old House puts a full replacement at $8,000–$30,000 for most homes, materials and installation.

  • Vinyl siding: $3–$9/sq ft installed (most affordable, low maintenance)
  • Fiber cement (HardiePlank): $6–$15/sq ft installed (durable, paintable)
  • Wood (cedar clapboard): $5–$15/sq ft installed
  • Engineered wood (LP SmartSide): $7–$16/sq ft installed
  • Aluminum: $3–$9/sq ft installed
  • Stone veneer: $23–$45/sq ft installed

Key Takeaways

  • Vinyl: $3–$9/sq ft (most affordable)
  • Fiber cement: $6–$15/sq ft (durable, paintable)
  • Full replacement: $8,000–$30,000 for most homes (This Old House)

Siding Material Comparison: Lifespan & Maintenance

Fiber cement siding can last 50 years with proper installation and resists moisture, rot, pests, and fire. These are typical manufacturer warranty and industry estimates; actual lifespan depends on climate, installation quality, and maintenance.

  • Vinyl: 20–40 years, no painting, can crack in extreme cold
  • Fiber cement: up to 50 years, fire-resistant, needs periodic repainting
  • Wood: 20–40 years, cedar clapboards may need repainting every 7–10 years (highest maintenance)
  • Metal: does not rust (aluminum), but can corrode and dent

Key Takeaways

  • Fiber cement: up to 50 years, fire-resistant
  • Vinyl: 20–40 years, no painting
  • Wood: highest maintenance (repaint every 7–10 years)

Siding Installation & What to Watch For

Proper installation includes housewrap, flashing, and the manufacturer's specified gaps at trim joints to prevent moisture infiltration behind the siding.

  • Housewrap/WRB: a water-resistive barrier behind siding is required by most residential codes. Check your local code and the siding manufacturer's instructions.
  • Window/door flashing: critical water management detail - a common failure point
  • Nail pattern and trim gaps: follow the siding manufacturer's installation instructions for fastener spacing and clearances; they differ between vinyl and fiber cement
  • Old siding removal: $0.75–$3/sq ft for tear-off and disposal

Inspect sheathing and housewrap during tear-off. Replacing rotted sheathing adds cost you cannot see until tear-off - carry an allowance or a per-sheet unit price in the contract.

Key Takeaways

  • Housewrap (WRB) required by most residential codes; check local amendments
  • Window flashing = a common moisture failure point
  • Old siding removal: $0.75–$3/sq ft

Last updated: 2026-09-24

Quick Answer: How Much Siding Do You Need?

Multiply your home's perimeter by wall height per story, subtract door and window openings, then divide by 100. That gives you squares - the unit siding is sold in. A two-story home with a 150-foot perimeter and 8-foot walls per story has about 2,400 sq ft of gross wall. After 8-12 windows and 2 doors, that is roughly 22 squares of siding. Order 10% extra on simple homes and 15% if you have gable ends, dormers, or a lot of angles. Fiber cement runs $6-$15 per sq ft installed. Vinyl is $3-$9.

Siding Cost and Material Comparison

Installed cost covers materials and labor for a standard single-story home. Prices vary by region and job complexity.

Siding Type Installed Cost / sq ft Lifespan Maintenance Best For
Vinyl$3-$920-40 yrsLowBudget-friendly, low maintenance
Fiber Cement (Hardie)$6-$15Up to 50 yrsLow-MediumDurability, paintable finish
Wood (Cedar/Pine)$5-$1520-40 yrsHighCurb appeal, historic homes
Aluminum$3-$9VariesLowFire resistance, low maintenance
Stone Veneer$23-$4550+ yrsVery LowAccents, premium curb appeal

Inputs You Will Need

  • House perimeter or dimensions - Total linear feet around the exterior, or length and width (the calculator multiplies them for you)
  • Wall height - Enter the height of one story (standard walls run 8-9 feet); the calculator multiplies this by your number of stories
  • Door and window count - Typical homes have 2-3 exterior doors and 8-12 windows; each door deducts about 20 sq ft and each window about 15 sq ft from your gross area
  • Siding material type - Vinyl, fiber cement, wood, metal, or stone veneer; affects the cost per square foot estimate
  • Stories - Multi-story homes add staging costs and extend the effective wall area

Quick Reference: House Size to Siding Squares

Approximate squares for a single-story rectangular home with 8-foot walls, 2 exterior doors, and 8 windows. Add 10-15% for waste on your material order.

Home Size (sq ft) Approx. Perimeter Net Squares Order Qty (with 10% waste)
1,000 sq ft~126 ft7-9 squares8-10 squares
1,500 sq ft~156 ft10-12 squares11-13 squares
2,000 sq ft~180 ft12-15 squares13-17 squares
2,500 sq ft~200 ft14-17 squares15-19 squares
3,000 sq ft~220 ft16-20 squares18-22 squares

Cost to Side a House by Size (2026)

Total installed cost - materials and labor - for a single-story home, based on net wall area (perimeter x 8-ft walls, minus 2 doors and 8 windows). Wood costs more than vinyl or aluminum; see the comparison table above for the full range by material. Excludes tear-off ($0.75-$3/sq ft) and housewrap ($0.40-$1.50/sq ft). A larger or multi-story home, or a full job that also includes tear-off, housewrap, and trim, runs higher - up to the $8,000-$30,000 whole-home range cited above. Prices vary by region and job complexity, so get local quotes before you commit.

Home Size (sq ft) Vinyl (Installed) Fiber Cement / Hardie (Installed)
1,000 sq ft$2,500-$7,600$5,100-$12,700
1,500 sq ft$3,300-$9,800$6,500-$16,300
2,000 sq ft$3,800-$11,500$7,700-$19,200
2,500 sq ft$4,300-$13,000$8,600-$21,600

Worked Example: 1,500 Sq Ft Single-Story Home

A 40x38-foot house with 8-foot walls, 10 windows, and 2 exterior doors:

  • Perimeter: (40 + 38) x 2 = 156 linear feet
  • Gross wall area: 156 x 8 = 1,248 sq ft
  • Window deductions: 10 x 15 = 150 sq ft
  • Door deductions: 2 x 20 = 40 sq ft
  • Net area: 1,248 - 190 = 1,058 sq ft (10.6 squares)
  • With 10% waste: order 11.6 squares - round to 12

At fiber cement rates of $6-$15 per sq ft installed, this job runs $6,348 to $15,870. Vinyl at $3-$9 is $3,174 to $9,522. Accessories for this house: 156 linear ft of starter strip, 164 linear ft of J-channel (10 x 13 + 2 x 17), and 4 outside corner posts. Price them from your supplier and add them as separate line items.

Common Siding Estimating Mistakes

  • Quoting gross area instead of net. Every door and window is a deduction. A typical home has 8-12 windows and 2-3 exterior doors. That's 160-240 sq ft of gross area you should not be buying siding for. Contractors who quote gross end up over-ordering material and losing that margin to leftover panels sitting in the garage.
  • Forgetting accessories in the material list. Starter strip, J-channel, corner posts, and inside corner trim add up on a full reside. For a home with 12 windows and 2 doors, this calculator's formula gives about 190 linear feet of J-channel, before soffit and roofline runs. These are real line items that need to be in the estimate before you quote the job.
  • Skipping the housewrap inspection on re-sides. You are removing old siding and exposing whatever is behind it. If the housewrap is torn, missing, or wrong, you have to replace it before new siding goes on. Housewrap runs about $0.40-$1.50 per sq ft installed, roughly $600-$2,200 on the 1,440 sq ft of wall on a 2,000 sq ft single-story home. If it is not in your estimate and it needs replacing, you eat that cost.
  • Not accounting for gable ends and dormers. These areas require more cuts, more waste, and more labor time per square than a straight wall. Add 15% for waste to areas with a lot of angles, not just 10%. On a home with dormers, underestimating gable waste is how contractors short-order material and make a second delivery run at full freight cost.
  • Leaving old siding removal out of scope. Tear-off and disposal is real work and real cost. Tear-off and disposal runs about $0.75-$3 per sq ft, roughly $800-$3,300 on the 1,088 sq ft of net wall on a 1,500 sq ft home. Clarify scope with the client before demo starts - not after. Put it in writing in a scope of work document if using subs for tear-off so there is no dispute about who pays for what.

Related Calculators

Sources

Per-sq-ft price ranges on this page also draw on EstimationPro's internal pricing reference, which cross-checks Angi, HomeGuide, Modernize, and Homewyse 2026 cost guides.

If you are bidding siding work, try EstimationPro free (3 estimates, no card). Describe the job with photos, voice, or notes and it builds a line-item estimate with labor and materials adjusted for your region. When you send the estimate from EstimationPro, it reminds the client automatically: at 24 hours if they have not opened it, 48 hours after they open it with no response, and a final reminder at 7 days.

How to Use This Calculator

Enter house dimensions or perimeter

Input the length and width of your house, or enter the total perimeter directly. Set the wall height and number of stories for accurate area calculations.

Add doors and windows

Enter the number of exterior doors and windows. The calculator subtracts 20 sq ft per door and 15 sq ft per window to give you the net siding area.

Select your siding type

Choose from vinyl, fiber cement, wood, metal, or stone veneer. Each material has different cost ranges for both materials and installation labor.

Review area, accessories, and cost

See the net siding area in squares, required starter strip, J-channel, and corner posts, plus a full materials and labor cost breakdown.

Siding Calculation Formulas

Gross Wall Area = Perimeter x Wall Height (per story) x Stories
Net Area = Gross Area - (Doors x 20 sq ft) - (Windows x 15 sq ft)
Squares = Net Area / 100
Starter Strip = Perimeter (linear ft)
J-Channel = (Windows x 13) + (Doors x 17) linear ft

Where:

Perimeter
= Total length around the house exterior in feet
Square
= 100 square feet of siding material
J-Channel
= Trim that frames siding edges around openings

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Frequently Asked Questions

How many squares of siding do I need?
Calculate the net wall area by multiplying perimeter x wall height, then subtract door and window openings. Divide by 100 to get squares (1 square = 100 sq ft). A typical 1,500 sq ft single-story home with 8-foot walls needs roughly 10 to 12 squares of siding after deductions.
How much does it cost to side a house?
This Old House puts a full siding replacement at $8,000 to $30,000 for most homes, materials and installation. Vinyl is the most affordable at $3-$9/sq ft installed, fiber cement runs $6-$15, wood costs $5-$15, and aluminum is $3-$9. The exact cost depends on your home size and siding choice.
What is the cheapest siding option?
Vinyl siding is the most affordable option at roughly $3-$9 per square foot installed, with labor typically $2-$4 of that. It requires minimal maintenance and comes in many colors and styles.
How long does siding last?
Siding lifespan varies by material: vinyl lasts 20-40 years, fiber cement (Hardie) can last up to 50 years with proper installation, and wood lasts 20-40 years with proper maintenance. These are typical manufacturer warranty and industry estimates - actual lifespan depends on climate, installation quality, and maintenance.
What is J-channel and how much do I need?
J-channel is trim that frames the edges of siding around windows, doors, and where siding meets other materials. You need approximately 13 linear feet per window (sides and head of a typical 3x5 window) and 17 linear feet per door (sides and head of a 3-0 x 6-8 door), plus additional lengths where siding meets soffits or different wall surfaces.
Should I add waste factor for siding?
Yes, add 10% for waste on standard rectangular walls and 15% for homes with lots of angles, dormers, or architectural details. Gable ends and areas requiring many cuts generate more waste. This calculator provides the net area; add the waste factor when placing your order.
How do contractors price siding for a client?

Siding labor typically runs $2-$8 per sq ft ($200-$800 per square) depending on material, with vinyl at the low end and fiber cement higher. On an 11-square fiber cement job (about 1,100 sq ft net), installed pricing of $6-$15 per sq ft works out to roughly $6,600-$16,500 before tear-off and housewrap, then set your materials markup with the contractor markup calculator. Use a contractor estimate template to line-item materials, labor, and markup before you send the proposal.

How long does it take to install siding on a typical house?

Crew time depends on material, stories, and trim detail. Fiber cement takes longer than vinyl because the panels are heavier and need more cutting. Build your schedule from your own crew's squares-per-day on past jobs, and add time for tear-off, housewrap, and flashing. Complex rooflines, multiple stories, and detailed trim work all extend the timeline. Always confirm what is in scope before demo starts - rotted sheathing behind old siding can add days and material cost you cannot predict until the old siding comes off.

What should a siding estimate include?

A complete siding estimate covers siding panels by square, starter strip, J-channel, corner posts, housewrap, flashing at windows and doors, nails and fasteners, old siding removal and disposal, and labor. Missing any of these - especially housewrap or disposal - is how contractors underbid and eat margin on delivery day. The contractor estimate template has line items for all of these. Do not quote siding from a single square footage number without running the accessories first.

How much siding do I need for a 1,500 sq ft house?

A 1,500 sq ft single-story home typically has a perimeter of 160-170 feet and 8-foot walls. Gross wall area runs about 1,280-1,360 sq ft. After subtracting 8 windows (120 sq ft) and 2 doors (40 sq ft), net area is roughly 1,120-1,200 sq ft - that is 11-12 squares. Order 12-14 squares to cover 10-15% waste. Complex rooflines and gable ends push the waste factor toward 15%.

How much does it cost to side a 2,000 sq ft house?

A 2,000 sq ft single-story home has about 1,280 sq ft of net wall. Installed: vinyl $3,800-$11,500, fiber cement $7,700-$19,200, wood $6,400-$19,200, aluminum $3,800-$11,500. Add $0.75-$3 per sq ft (about $1,000-$3,800) for tear-off and disposal. Rotted sheathing found during tear-off, multi-story staging, and complex trim details all add cost that does not show up in a per-square-foot number.

Hardie board vs vinyl siding: what is the cost difference?

Vinyl siding installs for $3-$9 per sq ft versus $6-$15 per sq ft for Hardie board (fiber cement). On a 12-square house, that is a $3,600-$7,200 price gap in materials and labor alone. Hardie can last 50 years with proper installation versus 20-40 for vinyl, and it resists moisture, warping, rot, pests, and fire. Vinyl can crack in extreme cold and fades over time. Use the Hardie board calculator to run a fiber cement-specific estimate before you quote the job.

How much does aluminum siding cost?

Aluminum siding installs for $3-$9 per sq ft, materials and labor. On a 1,500 sq ft single-story home (about 1,088 sq ft of net wall) that is roughly $3,300 to $9,800. Aluminum is fire-resistant and will not rot, but it dents easily and can corrode. Run your wall area through the calculator above, then price it against vinyl and fiber cement before you quote the job.

How much does cedar siding cost?

Cedar and other wood siding runs $5-$15 per sq ft installed, about $5,400 to $16,300 on a 1,500 sq ft single-story home (about 1,088 sq ft of net wall). Cedar looks great and suits historic and craftsman homes, but cedar clapboards may need repainting every 7-10 years, sooner in wet climates. Budget for that maintenance when you talk cost with the client. Drop your square footage into the contractor estimate template to line-item the wood, trim, and finish coats.

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