Calculate the Total Area of a Floor Plan

Pro and Team subscribers can calculate the Total Area of your floor plan or an entire project. This article describes the following topics:

About Total Area
Specify an Area Type for a Zone (Room)
Calculate the Total Area
Add Total Area to Floor Plans

Follow the steps below or watch this short video:

About Total Area

There are many ways to calculate the Total Area of your floor plan. The ways of defining Total Area depend on what factors of the building should or should not be included, such as external walls, internal walls, corridors, lift shafts, stairs, etc.

Many countries have standards defining what is included in the calculation. RoomSketcher includes 6 different methods, which cover the most common standards:

	Grand Total Area	Gross Floor Area	Gross Internal Area	Internal Zone Area	Primary Area	Secondary Area
Primary	✓	✓	✓ (only internal walls)	✓ (no walls)	✓
Secondary	✓	✓	✓ (only internal walls)	✓ (no walls)		✓
Outdoor	✓
Exclude

1. Grand Total Area

Area Types: Includes all zones with area types Primary + Secondary + Outdoor

Walls: All walls are included

Translation:

da: Samlet Areal
de: Gesamte bebaute Fläche
no: Bebygd areal (BYA)
sv: Byggnadsarea

2. Gross Floor Area

Area Types: Includes all zones with area types Primary + Secondary

Walls: All walls are included

Translation:

da: Bruttoareal
de: Brutto-Grundfläche
no: Bruttoareal (BTA)
sv: Bruttoarea

3. Gross Internal Area

Area Types: Includes all zones with area types Primary + Secondary

Walls: Includes all internal walls

Translation:

da: Intern Areal
de: Brutto-Raumfläche (inkl. Wände)
no: Bruksareal (BRA)
sv: Bruksarea

4. Internal Zone Area

Area Types: Includes all zones with area types Primary + Secondary

Walls: No walls are included

Translation:

da: Intern Rum Areal
de: Netto-Raumfläche (ohne Wände)
no: Nettoareal (NTA)
sv: Nettoarea

5. Secondary Area

Area Types: Includes all zones marked Secondary

Walls: Includes all internal walls in Secondary zones

Translation:

da: Sekundær Areal
de: Nebenbereich
no: Sekundærareal (S-ROM)
sv: Biarea

6. Primary Area

Area Types: Includes all zones marked Primary

Walls: Includes all internal walls in Primary zones

Translation:

da: Primær Areal
de: Hauptbereich
no: Primærareal (P-ROM)
sv: Boarea

Calculation Notes

For Area Type = Exclude, RoomSketcher excludes the zone – not any walls.

The RoomSketcher App is not a full-fledged CAD tool and all measurements are best effort approximations.

Specify an Area Type for a Zone (Room)

In the RoomSketcher App, you specify what should be included or excluded in the calculation by setting the Area Type for certain zones (rooms).

All zones are defined as Area Type = Primary by default, so you only need to set the Area Type when it is different than Primary.

Open a project in the RoomSketcher App.
Open Walls mode.
Press to select a zone (room) in your project.
Press Advanced Properties on the right.
Press Area Type.
Choose the Area Type for the zone. Available Area Types are:

Primary – All zones are set as Primary by default, so you only need to set a zone's Area Type if you want it to be different.
Secondary – used in some countries to indicate that the zone is not a typical living space, for example, closets and storage areas. These can be excluded from some calculations.
Outdoor – outdoor areas are excluded from some of the calculations.
Exclude – excludes this zone from ALL the calculations.
If desired, select another zone and set it's Area Type. Repeat until you have defined an Area Type for each area in the project.

Area Type Color Codes

Example Floor Plan With Area Types Defined