20x40 Custom Modular Design 20x40 Custom Modular Design from Jeff Vavrek 20x40 Custom Modular Design 20' x 40' custom modular exhibit design. gLike 20x40 Custom Modular Design 20' x 40' custom modular exhibit design. Exhibit Design Share R 7 n Available Freelance, Full-time Jeff Vavrek Exhibit Designer San Diego, CA Follow Contact