The submitted paper deals with the issue of unconventional technology of material laser cutting. The paper presents particular relations between the influence of gas pressure change and character of cutting surface after experimental measurements.[Gaspar 2013] Gas pressure change was applied in case of the selected sheetmetal thickness. The samples taken during experimental measurements were prepared in cooperation with the private sector which employs the laser cutting technology directly in production. The conclusion contains the results of the measurements and discussion on the respective issue.