BOMA (ANSI/BOMA Z) is also still used in some marketplaces; primarily in ultra-competitive, downtown core markets where landlords are. BOMA International is providing the following guidance on the Standard Method for. Measuring Floor Area in Office Buildings, BOMA Z, for persons. Today, BOMA International is the secretariat of a suite of measurement standards : Office Buildings: Standard Methods of Measurement (ANSI/BOMA Z

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It is not available online, but can be ordered by phone: A bima between the total of all the floor rentable areas and the total area of the building including building common areas such as the lobby and mechanical spaces is calculated. Building Owners Management Association, organization which defines standards for measuring space.

Method B allocates the common areas in the building is a way that results in all the floors having the same gross-up factor. We use a colour coding system that helps you relate the areas on the drawings to the anai in the spreadsheet.

For some buildings, this will mean a decrease in the rentable area.

BOMA Standards Landing Page

Common areas are allocated on a floor by floor basis. The next innovation is to boa gross up all the useable space in the building equally. This is the latest version of the Office measurement standard. We are all here to help. There are some significant changes which in most cases cause the building rentable areas to increase.


The government in Canada leases a great deal of office space. It is clearly written and has several good illustrations. Schedule B – Measurement Instructions. Send us an email! An example would be a mechanical room that services a specific group of occupants, or to allocate common areas in a more targeted way for floors with multiple cores.

There is a standard, a standard and there are different methods for calculating office, store and industrial areas. First, it uses the concept of “base building circulation”.

BOMA Standards

To find out more voma how we can help you, call or email us: Area is calculated in several steps: Usable space, common areas and vertical penetrations are delineated according to specific rules.

We colour-code and label the areas on the drawing: You can call 1 and dial 0 or email support spacedatabase. Method B creates a single load factor or gross up for the entire building by means of two innovations.

Create or Update the PDF file displaying an entire floor showing the layout, suite numbers and rentable area for vacant suites. Resources Home Services Resources. This is the successor to BOMA The benefit of Method B is that it allows landlords to apply a single load factor ratio to all of the space in the building. The following is a presentation that we use to give an overview of BOMA standards for measuring office buildings:.

You can think of this as treating all the suites as though they were all on a single floor. There is a Method A and a Method B.

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Method A is 6z5 as the “legacy” method. The concept of dominant portion determines whether the area is measured to the glass line or inside wall face at windows along the exterior enclosure. Architectural plans for the property, typically prepared by architects, designers or land surveyors. For more details, see below. The standard uses a spreadsheet that performs these calculations from left to right so that it is easy to follow.

It can be ordered by phone: To make area calculation consistent and fair, standards need to be used. A ratio between the total area of the floor and the total usable area within suites on the floor is calculated. What makes it a bit odd as a standard is that it includes two completely different ways to allocate common areas in the building.

In the z655, only the first 8 feet up from the finished floor is taken into consideration when determining the dominant portion. Proposed layout of office space within a suite, used to determine suitability for potential tenants.

Drawing file containing the layout of a floor or a suite.