Rectangular wall sections
4 walls

Add each exterior wall face. Deduct doors and windows per wall below.

Gabled / triangular areas
0 gabled sections

Each gable calculated as ½ × base × height.

Trim, corners & accessories
Outside corners (lin ft)

Height × number of outside corners across all walls.

Inside corners (lin ft)
J-channel / window wrap (lin ft)

Perimeter of all doors and windows combined.

Soffit & fascia (lin ft)
Corner trim cost ($ / LF)
J-channel cost ($ / LF)
Soffit/fascia cost ($ / LF)
Waste factor
House wrap / building paper
Moisture barrier — required by code under all exterior cladding
Product
Cost ($ / sq ft)
Fasteners
Nails or screws appropriate to siding type
Fastener type
Cost ($ / lb)

~1.25 lbs per square of siding.

Labor — professional installation
Per square (100 sq ft) installed
Siding labor ($ / square)

Vinyl: ~$125–$225/sq · Fiber cement: ~$200–$350/sq

Trim labor ($ / LF)

Corners, J-channel, and starter strip installation.

Include tear-off of old siding
Removal and disposal of existing cladding
—
Net sq ft
—
Squares
—
Materials
—
Est. total
Cost breakdown
Siding material—
Trim, corners & starter—
House wrap—
Fasteners—
Total estimate—
—
Squares (100 SF)
—
Wrap rolls (9 sq)
—
Fastener lbs
—
Corner posts (10 ft)
—
Starter strip LF
—
Caulk tubes

Doors deducted at 20 SF · Windows at 15 SF · Squares include selected waste · Prices exclude tax and delivery