More Information can be found on these foam panels at the following link: 

http://www.ecanechoicchambers.com/TB/EB-100%20-%20VHP-NRL.pdf

These panels are VHP-8 and VHP-12 and below you will find the specifications of panels:

Panel 1: 1.80 x 0.88 (m) = 1.58 meters squared. Panel is VHP-12. Panel is aluminium backed and wooden supports beams on the back.

Panel 2: 1.84 x 1.25 (m) = 2.3 meters squared. Panel is VHP-12. Panel is aluminium backed and on wooden support beams.

Panel 3: 1.78 x 0.88 (m) = 1.56 meters squared. Panel is VHP-12. Panel is aluminium backed.

Panel 4: 0.6 x 0.6 (m) there are 11 of these panels = 3.96 meters squared. Panels are VHP-12. Panels have no backing.

Panel 5: 0.84 x 0.6 (m) = 0.5 metres squared. Panel is VHP-12. panel is aluminium backed.

Panel 6: 0.2 x 0.6 (m) there are 3 of these panels = 0.36 meters squared. Panels are VHP-12. Panels have no backing.

Panel 7: 0.3 x 0.6 (m) there are 3 of these panels = 0.54 meters squared. panels are VHP-12. Panels have no backing 

Panel 8: 1.8 x 1.6 (m) = 2.88 meters squared. Panel is VHP-12 with one corner being VHP-8. Panel has an aluminium backing.

Panel 9: 1.0 x 0.6 (m) = 0.6 meters squared. panel is VHP-12. Panel is formed of loose spare parts of various sizes.

Panel 10: 0.6 x .045 (m) = 0.27 meters squared. Panel is VHP-8. panel has a wooden backing and support beam.

Total square meters = 14.55 squared meters which is equivalent to 40 tiles