Concrete Masonry (CMU) Wall

Last updated September 28, 2020 by Tekla Structures Extensions USA

Software version: 
Not version-specific
United States (Imperial)
United States (Metric)

Concrete Masonry (CMU) Wall

Purpose and description

Tool for creating straight walls with part or item types of concrete masonry units.

System requirements

Environments: US Imperial, US Metric for other environments you may need to create or export/import cmu profiles and/or shapes.
Languages: English 

Installing CMU Wall

To install the extension:

  1. Download the CMU Tools TSEP package from Tekla Warehouse
  2. Import the TSEP into the Applications and components catalogcatalog that contains all system components and custom components, and the macros and applications

    (see TUA article for instructions)
  3. Start Tekla Structures
  4. Open/create a model
  5. The tool will be found in the CMU Tools sub-category of the US Extensions category of the Applications and components cataloguser interface for displaying or modifying information in categorized lists

    For example, profile catalog and shape catalog are catalogs.


Using CMU Wall

After appling appropriate settings, pick two points to define the start point and the limit of the wallplate that represents a structure such as a wall or roof panel

In Tekla Structures, a panel is created by picking two or more points.

In cast-in-place concrete the term wall refers to a concept similar to panel.


CMU Wall settings

Wall Attributes

  1. Wall height limit
  2. Row stagger/offset value
  3. Row stagger option:
    • Even (second row is shifted)
    • Odd (first row is shifted)
  4. Mortar/groutbuilding object that represents the filling of seams between parts, or holes or voids in a part with grout

    Grouting can be used when connecting parts with anchor bolts or rods, or in seams between panels, for example.

    Grout is flowing concrete that hardens after application.

  5. Block properties

End Conditions

  1. End closure options:
    • None
    • Start
    • End
    • Both
  2. Half block properties
  3. Full block properties


Bond Main

  1. Bond beam row list
  2. Full block properties

Bond End

  1. Half block properties
  2. Full block properties

Beam Rebar

  1. Number of bar
    • None
    • One
    • Two
  2. Bar spacing (cc)
  3. Bar offset from block base
  4. Block properties

Vertical Rebar

  1. Reinforcement start offset along wall
  2. Reinforcement spacing along wall
  3. Reinforcement set creation:
    • None
    • One centered
    • Two aligned to wall length
    • Two aligned to wall depth
  4. Reinforcement set spacing
  5. Starter bar creation
    • None
    • Straight
    • Hook oriented toward back
    • Hook oriented toward front
  6. Hook length
  7. Starter length above block base
  8. Starter length below block base
  9. Block properties


  1. Custom tagging properties:
    • CMU Cut Lengthbolt property that indicates the depth at which Tekla Structures searches for the sections of the bolted parts

      Cut length determines whether the bolt will go through one flange or two, for example.

    • CMU Height Tag
    • CMU Width Tag
    • CMU Length Tag
    • CMU Has Rebar Tag
    • CMU Decorative Color Tag

Additional information

  • CMU shapes need to exist in Shape Catalogcatalog that displays information of item shapes

    The shapes are downloaded from Tekla Warehouse, are created using existing geometry and parts in the model, or are modeled using software other than Tekla Structures, for example SketchUp.

    to be utilized.
  • CMU shapes are imported with the installation and may cause conflicts with existing duplicate shapes.

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