Another good piece of information from the old boards. Thanks to original author!
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Curtain Backstop parts list - (15' x 17') portable range
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# Pipes
(four bundles of five 10' pipes, i.e. 200 feet - 1.25" x 10' Sch 40 PVC white) [Lowes]
cut to: twelve 6.4', eight 5', four 6', and fourty-eight 10" sections of pipe
# Tees
eight Tees (1.25" white) [Lowes or USplastic.com #: 28282]
# 3-Way Elbows
four 3-Way Elbows (1.25" white) [USplastic.com #: 28281]
# 5-Way Crosses
twelve 5-Way Crosses (1.25" white) [USplastic.com #: 28287]
# Caps
forty-eight Caps (1.25" white) [Lowes or USplastic.com #: 28276]
# Drop Cloths
eight 6' x 9' canvas dropcloths [Lowes #: 126317]
# Snap Clamps
twenty-four 4" x 1.25" Snap Clamps [greenhousemegastore.com #: SN-SC]
Some photos of the completed project



Thanks again to the original designer!
Chris