u2033 to 3 u2033 in height if speakers or acoustic fill or board is to be placed behind the fabric the protruding member 14 will preferably be high enough above the base to allow covering the speakers or acoustic fill or board without having to stretch over top of the speakers or acoustic board the molding strip is preferably made from extruded plastic such as for example polyvinylchloride polypropylene or polyethylene as stated in u s pat no 5 953 873 to livingston the base 10 has a base wall 30 and has opposing side edges 32 and 34 a side wall 36 extends generally perpendicularly from base wall 30 from side edge 32 for example depending on the application the side wall 36 may form an 80 u00b0 to 100 u00b0 angle with base wall 30 as depicted it forms an approximately 90 u00b0 angle with base wall 30 a web member 38 preferably connects the base wall 30 to the side wall 36 the web member 38 preferably connects to the base wall 30 at a connection point 40 between opposing side edges 32 and 34 with the collection cavities 16 and 18 positioned between the side wall 36 and the connection point 40 and with an extending member.