Free MEP Clash-Point Hole-Cutting Tool

Cut Opening Free is a Revit® extension for creating and cutting penetration holes in buildings where ducts, pipes, cable trays, or conduit intersect walls, floors, ceilings, or roofs.

  • Adds opening offset if needed.
  • User can change the type and shape of opening.
  • The cut offset and shape of opening can be locked.
  • Ability to change/delete existing openings if needed.

The table below compares the functionality of Cut Opening Free with Cut Opening (the commercial version).

Total possibilities
100% 20% You get 80% more with the commercial license!
Works with linked files
- Create openings for linked MEP in architectural / structural file or vice versa.

Teamwork/collaboration between MEP, architectural & structural engineers - Share opening geometry and data with architects/structural engineers using .xml file.

Openings for IFC MEP elements
- Create openings for current or linked MEP elements from IFC files.

Supported categories
Cable Trays

Make openings for structural elements, such as Walls, Floors, Roofs, Ceilings, Slabs, Beams, Columns, and MEP elements, like Pipes, Ducts, Cable Trays, and Conduits.

Predefined configurations for:
Cut Offset
Joining Distance
Opening Shape
Interference Check

Set configurations for opening size and cut offset from MEP object, define distance between two openings to be merged into one, define opening shape, and allow partial interference.

Configuration classification by:
Round Duct
Rectangular Duct
Oval Duct
Pipe: Fire protection
Pipe: Plumbing
Pipe: Sanitary
Pipe: Hydraulic
Pipe: Other
Cable Tray
MEP Object Size

Configure opening size, cut offset, joining distance, etc. by MEP element’s category and system classification.

Configuration sharing - Share predefined configurations with colleagues.

Calculate opening elevation from:
Project zero point
Global zero point

Calculate opening elevation in accordance with host level, project zero point, or global zero point.

Opening elevation positions

Calculate opening distance to the bottom, top, or center point of opening family.

Openings update if:
MEP changed position
MEP deleted
New opening inserted
Shape changed
MEP size changed

Update openings if MEP elements are deleted, moved, resized, or any other action has been carried out on them.

Manual changes
Change offset
Delete opening
Move opening

Possible to modify openings manually.

Minimum opening size - Set minimum MEP service size limit to insert openings.

Join selected openings - Join selected openings into one bigger opening.
Partial interference openings - Possibility to add openings when MEP is partially clashing with structures.
Wall partial interference Floor partial interference
Structural openings for doors & windows - Auto-insert openings for windows and doors in linked Structural model.

Fire dampers - Add fire dampers where needed.

Fire collars
- Add fire collars where needed.

Round void
Rectangular void
Round solid
Rectangular solid


Distribute void families that cut structures in Revit models. Change voids to solid elements to export openings to Navisworks or IFC.

Extra parameters for documentation
Opening shape
Opening elevation
Opening mark (passing through system mark)
System classification
System type
System name
Additional top cut offset
Additional bottom cut offset




Use host and MEP service parameters for tagging, scheduling, etc.

Tracking openings
Inserted by
Insertion date
Insertion configuration
Declined by
Approved by
Approval comment
Decline reason

See when, how, and who inserted openings. Approve or decline openings with comments.

Here's a taste of what you can do with Cut Opening (commercial version).


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Thank you for your demo request.

Our customer service will get in touch with you within 24 hours.

Don’t waste time on reading technical documentation and see that this is the solution for you! Our Expert will frame a part of your project, demonstrate software functionality and share the best practice and efficient way of framing, taking into account your current needs.

Duration: 1 hour
Cost: 250$/250€

Register to start framing with our Expert

Questions or special requests:

You will leave the demonstration with:
- Part of your project already framed;
- Your questions answered;
- 14-days software trial;
- Support during the trial period.

Thank you for your trial request.

Our customer service will get in touch with you within 24 hours.

With a paid trial, which is called an Initial Implementation Plan, our professionals will help you quickly discover how this software will benefit your design process.
Our BIM consultant will demonstrate software functionality, share best practices, and show the most efficient way of framing your project according your current needs. Plus, you’ll get an extended trial period, sample Revit families and configurations.

Cost: 750$/750€
This cost will be deducted from the product price should you decide to purchase the software.

Register to start a paid trial

Questions or special requests:

Initial Implementation Plan includes:
- Revit project with sample families & configurations
- Research on your framing standards (1 h)
- Personal training via online meeting (2 h)
- 30-day software license and support

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