The entrance of a mosque located in Tehran was inspired by designs identical to the arches of ancient mosques. The material used, considering its location, must be able to withstand the load of rain and snow. Sturdy iron sheets were used. Islamic designs were used to decorate the entrance base to represent Iranian and Islamic art. After brainstorming and consulting with executives in the design phase, the selected design was made in 3D and presented. After making the corrections, construction plans were prepared for cutting and installation in the implementation phase.