Suppose a 50 ft backstop wall with 5 target traps is needed. The diagram below shows how standard "T" and "L" panels could be assembled to form the wall and traps.

Materials required for this project:

    2   "L" Panels @ $921.55
    16 "T" Panels @ $1117.00
    10  Expendable target panels (4' L Panels) @ $460.77

The total cost for this wall would be $24,322.80 plus shipping or on-site manufacturing charges, whichever is less.  If it saves you money, Terran will manufacture panels at or near your site.