Docs

Documentation

The manuals of the four programs in English and Dutch, the release notes, and where to ask when the manual does not answer.

1Start

Start here

1.1

Download and register

The programs are a free download. Register in the program and you get €100 of pay-per-use credit as a welcome gift.

Downloads 1.2

Quickstart videos

Eight short videos: a steel structure, a foundation and a floor in XFEM4U, a portal frame in XFrame2D, a concrete beam in XBeam2D and the XConstruct toolbox. Recorded around 2022.

Watch on YouTube (opens in a new tab)1.3

Word add-in

How a calculation becomes a linked block in your own Word report, and updates when the model changes.

Watch the demo

2Manuals

Old links to the manuals keep working.

Manuals

Each program has its own manual, in English and Dutch, with its own search.

XFEM4U

2027-04-02

3D frames, plates and walls

Geometry and loads
Calculation settings
Results
Earthquake, NPR 9998
ANSI/AISC 360-16
Python
Word add-in

XFEM4U manual: English XFEM4U manual: Nederlands

XFrame2D

2027-07-01

2D frames in steel and timber

Quick start
Geometry and profiles
Loads
Results and optimisation
Possibilities and limitations
Word add-in

XFrame2D manual: English XFrame2D manual: Nederlands

XBeam2D

2027-05-02

Beams in steel, concrete and timber

Getting started
Sign convention
Concrete: creep, cover, reinforcement
Results
Deflection background
Word add-in

XBeam2D manual: English XBeam2D manual: Nederlands

XConstruct

2027-03-01

Sections, columns, punching, connections

Getting started
Steel modules
Concrete modules
Timber
Merge PDF
Word add-in
Eurocode 2 clauses

XConstruct manual: English XConstruct manual: Nederlands

XSpreadsheets

An Excel workbook of parametric modules that build XFrame2D and XFEM4U models. It has no separate manual: the product page explains the modules, and the models are calculated in XFrame2D or XFEM4U.

Product page Download (.xlsm)

3Release notes

Release notes

Every release since November 2022, per program, as PDF. The changelog summarises them and flags calculation changes.

Program	Latest version	Release notes
XFEM4U	2027-04-02 · 4 Aug 2026	EN (PDF)XFEM4U NL (PDF)XFEM4U
XFrame2D	2027-07-01 · 20 Aug 2026	EN (PDF)XFrame2D NL (PDF)XFrame2D
XBeam2D	2027-05-02 · 19 Aug 2026	EN (PDF)XBeam2D NL (PDF)XBeam2D
XConstruct	2027-03-01 · 15 May 2026	EN (PDF)XConstruct NL (PDF)XConstruct