For a back stop behind my target I have use heavy insulation board in 4 X 8 sheets. I have used the 2 1/2 thick boards taping 3 together to stop the arrow.

I have also used 30" X 30" full pieces of the same material in front of my larger back stop to shoot my broadheads. The broadhead should penetrate completly through the target and the fletching should not penaterate the target. This will allow you to unscrew the broadhead from the arrow for easy removal of the arrow from the target.

Sometimes you may be able to obtain a few sheets left over from a construction projects by just asking.

Whatever you use be certain to test it in a safe place prior to use and should it become worn or wet test it to determine if is safe to use. In addition be certain the area behind the back stop does not allow any possible damage to person, pets, livestock, property etc.

The purpose of the back stop should only be to stop the arrow should you miss your smaller primary target and is not to promote shooting in any unsafe area.

Enjoy shooting.
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