Flat Oval Pipe                       

Graco Metals manufactures both Single & Double wall flat oval pipe.          

Flat oval pipe is designed to be used where you          

have limited height above a ceiling or in a crawl space.          

Our single wall pipe and fittings are manufactured in accordance with          

2005 SMACNA duct construction standards. Our spiral pipe utilizes          

 a 4-ply seam. Elbows can be 2 pc. die stamped up to 12” diameter          

 or three & five gore fabricated.         

See our pdf catalog link for more information on our          

 Flat Oval Single Wall Pipe          

Our Double Wall pipe and fittings are manufactured in accordance          

 with 1995 SMACNA (ACOUSTI-DUCT) 2”-10” w.g. positive static duct          

 construction standards. Our Double Wall construction utilizes the          

 outer shell with 1”-2” insulation and a perforated or solid liner.         

See our pdf catalog link for more information on our          

 Flat Oval Double Wall Pipe