Mueller 18x21 (D.I.Y.) with Optional Center Girts and Floor Kit - Manual (Page 23)

Mueller, Inc. 18x21 DIY Back Yard Kit Instructions; For additional information, see the D.I.Y. Installation Video
23
sHeeTING (NOTe sOMe sHeeTs are lONGer)
NOTe: sheets are stepped.
longer sheets are
in the middle of
the D.I.Y.