The article presents a deterministic algorithm for parametric optimization of a trapezoidal wooden truss with alternating diagonals on metal toothed plates, determining the optimal parameters of the structure with minimal wood consumption. A deterministic algorithm for parametric optimization of wooden trusses based on the minimum mass criterion was implemented in the object-oriented programming language Delphi. Implementation of the algorithm in the Borland Delphi environment provided such capabilities as automatic enumeration of variants of a given range with a given step, automatic recording of the obtained optimization results in multidimensional arrays with the possibility of their further analysis. As well as the creation of a convenient software shell. Optimal parameters were identified for a trapezoidal wooden truss with alternating diagonals with a span of 24 m at a given value of the external load, and diagrams of the dependence of the objective function on the variable parameters were compiled.