# Exterior Walls Quantity Takeoff Calculator

Exterior Walls Quantity Takeoff Calculator

# Exterior Walls Quantity Takeoff Calculator

Prepared By: Parag Kamlakar Pal - Owner of www.civilnotess.com

Accurately estimating the quantity of materials required for exterior walls is a crucial step in construction planning. Below, you’ll find a comprehensive guide to calculating the exterior wall area with a numerical example, followed by an interactive calculator to help you with your project.

## Step-by-Step Calculation Process

To determine the total exterior wall area, follow these steps:

### 1. Measure Wall Dimensions

Measure the length and height of each exterior wall.

### 2. Calculate Wall Area

For each wall, multiply the length by the height to get the wall area.

### 3. Subtract Openings (if any)

If the wall has windows or doors, subtract their areas from the total wall area.

### 4. Sum Up All Walls

Add up the net areas of all exterior walls to get the total exterior wall area.

## Numerical Example

Consider a building with the following dimensions:

• Wall 1: Length = 10 meters, Height = 3 meters
• Wall 2: Length = 15 meters, Height = 3 meters
• Wall 3: Length = 10 meters, Height = 3 meters
• Wall 4: Length = 15 meters, Height = 3 meters

The building has:

• 2 windows on Wall 1, each 1.5 meters wide and 1.2 meters high.
• 1 door on Wall 2, 2 meters wide and 2.1 meters high.

### Calculation:

Wall 1:
Wall Area = 10m × 3m = 30 square meters
Area of Windows = 2 × (1.5m × 1.2m) = 3.6 square meters
Net Wall Area = 30 - 3.6 = 26.4 square meters

Wall 2:
Wall Area = 15m × 3m = 45 square meters
Area of Door = 2m × 2.1m = 4.2 square meters
Net Wall Area = 45 - 4.2 = 40.8 square meters

Wall 3:
Wall Area = 10m × 3m = 30 square meters
Net Wall Area = 30 square meters (No openings)

Wall 4:
Wall Area = 15m × 3m = 45 square meters
Net Wall Area = 45 square meters (No openings)

Total Exterior Wall Area:
26.4 + 40.8 + 30 + 45 = 142.2 square meters