In this graduation thesis, I developed a computer program with the help of Excel's built-in developer. I
used the programming language Visual Basics (VBA). The program allows dimensioning of typical
laminated timber beams covered by Eurocode 5: Single tapered beam, double tapered beam, curved
beam and pitched cambered beam. The program uses simplified expressions of Eurocode 5. The first
part of the thesis describes expressions used for dimensioning, the second part describes the operation
of the program and the third part shows the example of step by step calculation through the program.