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Box Gutter

SSMBOXG
Low slope · box gutter
Sanders standard spec
Box (Style A)5" × 6" × 7"
Hooks1" open 90° hook
Material24 ga Kynar
Sold as10-ft section
Custom order form
OverviewMaterialsSizes & profileInstallationColors
Box gutter with internal hangers
Box gutter installed — splice plate at the joint, straps on the fascia, screws set between the hooks
Styles A, B, D, F, and G
Made to your profile and girth
Hemmed top edge for stiffness
Outlets cut to your downspout
End caps and hangers ordered separately
24 & 26 gauge steel
29 standard colors
Up to 10′ lengths
Box Gutter is our custom-formed commercial box gutter — the square-profile trough that carries water along the eave or behind a parapet. We fabricate it to your drawing in styles A, B, D, F, and G, brake-formed in your gauge and color with formed screw hooks along the top edge, and outlets cut for your downspout — backed by our 5-day fabrication guarantee. We build box gutters only; we do not fabricate half-round or curved gutters. Sold as gutter sections only — hangers, straps, and end caps are not included — order them as their own products.

Box Gutter is fabricated from steel and finished in your choice of standard or custom color with a durable factory paint finish. The substrate carries the mill’s coating; the paint finish carries the coating manufacturer’s warranty. Tell us your color and gauge and we’ll match the job.

Gauge24 / 26 ga
Box Gutter — standard profile dimensions

Standard profile shown — online orders are exactly this piece. Need different dimensions? We custom-bend to order — request a quote.

A 1″B 1″C 1″D 5″E 6″F 7″
Style A · standard — sold online
ABCDEFG
Style B · custom order
ABCDEFG
Style D · custom order
ABCDEF
Style F · custom order
ABCDEFGH
Style G · custom order
StylesA, B, D, F, G
LengthUp to 10′ sections
OutletsCut to your downspout size
End capsSold separately — left or right hand

Step-by-step install for Box Gutter — slope and layout, hangers and brackets, expansion joints, and the outlets into the downspouts. Open the full guide:

Available in every color on the SSM color chart — 29 standard colors plus custom finishes, color-matched to most manufacturers. Bare galvalume and galvanized are available too.

Want Box Gutter on your next job?

Tell us the style, girth, gauge, and color — we’ll quote it fast.

Get a free quote