Hi MB Furniture,
You can can easily do something like this. IronCAD has the ability to make a model that can be adjust and follow defined rules to input the sizes and constraints automatically in a model. This video of a packaging solution, is doing just what you need. It was made for NEFAB in the Australia. https://www.youtube.com/watch?v=AQxs5Ri2XSU Not sure who sold you IronCAD but they should be able to explain this to you. If you don't a good response back, then please give me a call and I can talk this through with you. I can also offer consultancy service to make the first model for you, so that you can then make other models once you have learnt this. You can contact me - Bob @ Athena Horizons Ltd. https://athena-horizons.co.uk Also Marc from WoodLab has complete solution that might suit your needs better and I can help you with this by introducing you both together.