What about corners and trim pieces?

Calculate corners and trim separately and add to your total. These pieces are essential for proper installation and finishing.

How to handle complex house shapes?

Break down complex shapes into simple rectangles and triangles, calculate each section separately, then add them together for the total.

Siding Calculator

Q: How much extra siding should I order?

Add 10% for waste and mistakes. This accounts for cutting errors, damaged pieces, and pattern matching requirements during installation.

Q: What about soffits and fascia?

Measure soffits and fascia separately and add to your total. These areas require different materials and installation methods.

Q: How to handle different siding types?

Calculate each siding type separately if using mixed materials. Different types have different coverage rates and installation requirements.

House Dimensions

House Length

Length of the house

House Width

Width of the house

Wall Height

Height of the walls

Gable Height

Height of the gable

Number of Windows

Total number of windows

Window Width

Width of each window

Window Height

Height of each window

Number of Doors

Total number of doors

Door Width

Width of each door

Door Height

Height of each door

Siding Type

Type of siding material

Calculation Results

Siding Calculator: Your Guide to Exterior Cladding

Need to calculate how much siding you need for your house? Our Siding Calculator helps you determine the exact amount of siding required for your project.

Understanding Siding Calculations

Siding calculations are important for several reasons:

Cost Control: Accurate material estimates
Waste Reduction: Minimize excess material
Installation Planning: Efficient workflow
Budget Management: Cost-effective planning
Project Timeline: Better scheduling

How to Use the Siding Calculator

Enter House Dimensions: Input length, width, and height
Enter Gable Height: Input gable height if applicable
Enter Window Details: Input number and dimensions
Enter Door Details: Input number and dimensions
Select Siding Type: Choose your material
Click Calculate: Get siding requirements

Siding Calculation Formulas

Wall Area:
A = 2 × (L + W) × H

Gable Area:
G = L × GH

Window Area:
W = Nw × (Ww × Wh)

Door Area:
D = Nd × (Wd × Hd)

Total Siding Area:
T = (A + G - W - D) × 1.1

Where:
A = Wall area
L = House length
W = House width
H = Wall height
G = Gable area
GH = Gable height
W = Window area
Nw = Number of windows
Ww = Window width
Wh = Window height
D = Door area
Nd = Number of doors
Wd = Door width
Hd = Door height
T = Total siding area

Common Siding Types

Vinyl Siding:
- Most popular choice
- Low maintenance
- Cost-effective
- Wide color selection
Fiber Cement:
- Durable and long-lasting
- Fire resistant
- Low maintenance
- Natural look
Wood Siding:
- Classic appearance
- Natural beauty
- Requires maintenance
- Higher cost
Metal Siding:
- Modern look
- Durable
- Low maintenance
- Energy efficient

Real-World Examples

Example 1: Standard Ranch House

House Length: 40 feet
House Width: 30 feet
Wall Height: 8 feet
Gable Height: 4 feet
Windows: 8 (3' × 4')
Doors: 2 (3' × 7')
Siding Type: Vinyl
Results:
- Wall Area: 1,120 sq ft
- Gable Area: 160 sq ft
- Window Area: 96 sq ft
- Door Area: 42 sq ft
- Total Siding Needed: 1,257 sq ft

Example 2: Two-Story House

House Length: 50 feet
House Width: 35 feet
Wall Height: 20 feet
Gable Height: 6 feet
Windows: 12 (3' × 4')
Doors: 3 (3' × 7')
Siding Type: Fiber Cement
Results:
- Wall Area: 3,400 sq ft
- Gable Area: 300 sq ft
- Window Area: 144 sq ft
- Door Area: 63 sq ft
- Total Siding Needed: 3,850 sq ft

Frequently Asked Questions

How much extra siding should I order?

Add 10% for waste and mistakes.

What about corners and trim?

Calculate separately and add to total.

How to handle complex shapes?

Break down into simple shapes and add together.

What about soffits and fascia?

Measure separately and add to total.

How to handle different siding types?

Calculate each type separately.