1 3/8 in x 10 1/2 ft 17 gauge galvanized steel top rail
Hoop bender or
1 1/2 in x 10 ft Sch 40 pvc
45 degree bends/fittings
Reference
High Tunnel Hoop House Construction Guide Spiral-bound – 2015 by Steve Upson
High Tunnel Hoop House Construction Guide Steve Upson
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