mec Engineering Spreadsheets 

The mec Engineering Spreadsheets provide easy, low cost and professional design spreadsheets for calculation of many mechanical engineering problems using Excel.

The engineering spreadsheets have been developed with the aim to allow a fast calculation about mechanical design according to the international codes (Eurocode) and technical literature.

Even if it is needed a minimum of engineering knowledge, the spreadsheets have been produced to be used both by novice and expert users.

The powerful of spreadsheets allows to quickly get the answer about the interested problem, simply inserting the inputs for the computation, without to study specific tutorials or programs.

The spreadsheets for engineers and designers are available in different categories that include common mechanical dimensioning problems such as: structural bolted and welded connections, threaded holes and shafts, pin connections, shaft and hub connections, general design tools for plates and sections, lifting lugs, cylinders in pressure, Hertz contact problems, steel connections.

The spreadsheets are in English. In some sheets the Italian language option is also available.

More are being added regularly.


La mec Engineering Spreadsheets mette a disposizione strumenti professionali, facili da usare ed a basso costo per il calcolo di molti problemi ingegneristici, usando il formato Excel.

I fogli di calcolo sono stati sviluppati con lo scopo di permettere calcoli di progettazione meccanica in accordo alle norme internazionali (Eurocodici in particolare) e alla comune letteratura tecnica.

Anche se un minimo di conoscenza specifica di tipo ingegneristico è comunque necessaria, i fogli sono stati prodotti in maniera tale da essere usati sia da utenti esperti che non.

La potenza di uno strumento quale l’uso di fogli di calcolo permette all’utente di avere una risposta semplice ed immediata inserendo gli inputs necessari, senza dover studiare tutorials o programmi specifici.

I fogli sono disponibili in varie categorie che includono diversi problemi di dimensionamento di tipo meccanico quali: connessioni bullonate e saldate, filettature di fori ed alberi, connessioni tramite perno, connessioni albero-mozzo, strumenti generali di progettazione per piastre e sezioni, occhioni di sollevamento, cilindri in pressione, problemi di contatto di Hertz, connessioni in acciaio.

I fogli sono in inglese. In alcuni è disponibile l'opzione della doppia lingua in italiano.

Altri fogli vengono aggiunti regolarmente.


26/07/2021 - Added Welding shapes verification (v 1.0) spreadsheet in the Welded and bolted connections category. The spreadsheet verifies the welding of different fillet welding shapes tacking into account the Eurocode and NTC 2008 norms.

More details here.


12/07/2021 - Added Welded rectangular tube section (v 1.0) spreadsheet in the Steel connections category. The spreadsheet verifies the welding of a rectangular tube section by Eurocode norms.

More details here.


09/07/2021 - Added Welding verification of H sections (v 1.0) spreadsheet in the Steel connections category. The spreadsheet verifies the welding of a H section connected  to a supporting plate by Eurocode norms.

More details here.


01/04/2021 - Updated Pins connection (v 1.3) spreadsheet in the Pin connections and lifting lugs category.


02/03/2020 - Added trial version of the Rail wheel load verification spreadsheet. See here.


02/08/2019 - Updated Added clip angle connection (v 2.0) spreadsheet in the Steel connections category.

More details here.


18/07/2019 - Added Fin plate connection (v 1.0) spreadsheet in the Steel connections category. The spreadsheet verifies a connection between two H beams using a fin plate, considering the Eurocode norm.

More details here.


28/06/2018 - Added new section in Documentation Area relevant to framework joint types used in steel building.


20/10/2017 - Added new documents in Documentation Area.




See old news.


Some users of our spreadsheets 

Logos used with clients' permission.



For any specific request, support and help please use the contact form here.

Write a comment

Comments: 7
  • #1

    Flavio Montigni (Wednesday, 25 March 2015 13:43)

    Ho provato il foglio di calcolo dei bulloni e devo dire che è veramente ben fatto. Complimenti.

  • #2

    M. Graham (Saturday, 26 September 2015 15:39)

    Good resources for quick and detailed verification of mechanical design. Very useful and professional. Recommended.

  • #3

    A. F. (Tuesday, 25 October 2016 23:22)

    I use some of these mechanical spreadsheets regularly. They are practical and detailed, ideal for the daily work. Good job.

  • #4

    LM (Sunday, 04 December 2016 15:53)

    I have used some of the spreadsheet in this website, they are well done and simply to be used.
    With few money and few time I have solved complex problems.
    Thanks a lot.

  • #5

    Xabier (Thursday, 02 March 2017 20:56)

    I bought two Spreadsheet and one of them had some problems with the activation, Alessandro was all time trying to fix it and finally he did it. I´m very satisfy with the Alessandro attention and of course, with the Spreadsheets, they are very complete and give to the engineers or proffesionals a very good tool for daily calculus.
    Thank you very much.

  • #6

    nabil (Friday, 19 July 2019 10:42)


  • #7

    Bob James (Friday, 12 February 2021 18:36)

    We need a custom heat transfer spreadsheet!
    Can you do it?

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