Area Calculation Method

Choose how the area of your LX1 floor plan is calculated and displayed.

Open Settings, tap Display Options, then tap Area Calculation.

Choose from:

• Gross External Area — area measured to the outside face of all external walls. Also called Building Footprint.

• Gross Internal Area — area measured to the internal faces of the external walls, excluding wall thickness. Includes internal walls and features.

• Net Internal Area — usable floor space inside the building. Excludes external walls, internal walls and structural elements.

Select the calculation method you want to use, then tap Save.

The area displayed on your floor plan will update using the selected calculation method.

Gross External Area

Gross External Area (GEA), also referred to as the Building Footprint, calculates the area to the outside face of the external walls.

To calculate GEA, LX1 uses the Exterior Wall Thickness assigned to the floor plan.

Set the Default Exterior Wall Thickness

You can set a default Exterior Wall Thickness to be used for future measurements.

To set or change the default:

1. Open Settings.

2. Tap Measuring Options.

3. Tap Exterior Wall Thickness.

4. Enter the appropriate exterior wall thickness for the property.

5. Tap Save.

This value will be used as the default Exterior Wall Thickness for new measurements.

Change the Exterior Wall Thickness for an Existing Measurement

If you need to change the Exterior Wall Thickness for an existing floor plan, open the measurement and tap Edit and select Exterior Wall Thickness from the ribbon.

Enter the appropriate wall thickness for the property. The Area will update using the new value.

Note: Changing the Exterior Wall Thickness in Settings only changes the default for future measurements. To change the Exterior Wall Thickness for an existing measurement, use the option in the ribbon.

Note: Gross External Area currently uses the assigned Exterior Wall Thickness rather than individually measured exterior wall thicknesses.