i am wanting to add a semi permanent archery back stop in my back yard for everyday practicing. i remember a friend of mine having one built and i think it was fiber board or something close to that. he had a number of 4x8 sheets cut into many pieces and stacked inside a nicely built box with a roof and all and this setup stopped anything we shot at it. does anybody have any other ideas like this. i dont really want to beat up some Mckenzies everyday. looking for ideas on the net proved to be a challenge so if any of you have a tip i would greatly appreciate it. for info purposes i shoot a hoyt viper with carbon shafts. thanks ahead of time

Eric