The specifications for the College of DuPage’s new Amphitheater called for a tensile fabric roof structure system outside of the McAninch Arts Center (MAC) in Glen Ellyn, Illinois.  Eide Industries, Inc. provided the value-engineering design, build and installation services which eliminated unnecessary ground obstacles from the originals plans.

The end result was the simplest form of tensegrity with a trussed perimeter and conical “flying mast” tension structure, covered with Sheerfill I-HT PTFE fabric membranes.  The 2,520 square foot canopy rests on 10 foot tall concrete piers and is engineered for 90 MPH wind-loads, 25 PSF Ground snow-loads, and 12 PSF Roof Live snow-loads.  The shade structure was also constructed with an intelligent LED lighting system that allows the glowing canopy to be seen from across the campus.

With the expanded spaces and public areas, the College of DuPage MAC Amphitheater (now referred to as the Lakeside Pavilion) has become ‘the’ destination to experience award winning music, performing arts and seasonal events.


  • Approximate Coverage Area is 2,520 SF
  • Trapezoid Dimensions: Front 58′-5″ x Rear 40′-10″ x Left 60′-3″ x Right 53′-2″
  • Maximum Height: Center Peak 36′-8″H with Clearance of 19’-6”H
  • Sheerfill I-HT PTFE Membrane Fabric Cover
  • Flame Resistant Fabric: NFPA 701, ASTM E108 Class A
  • Engineered Snow Loads: 25 PSF Ground / 12 PSF Roof Live Load
  • Engineered Wind Loads: 90 MPH, Exposure Category “C”
  • Design & Engineer Electrical, Lighting and Speaker Systems