Gutter Calculator

Gutter Calculator

This calculator uses the equations that are laid out in the SMACNA handbook.

This calculator serves as an information source only. Metal-Era recommends that you verify all data obtained. For further assistance, please email us at info@metalera.com or call 800-558-2162.

Inputs

Select the State/City nearest you

Plan Width (ft)

Plan Length (ft)

Slope (in/ft) (decimal)

Total Gutter Length (ft)

Max Gutter Per Downspout (ft)

Storm Requirement

Ratio of Depth to Width of Gutter

GT-1 Inputs

[GT-1 Calc] ZIP Code

[GT-1 Calc] Roof Height

[GT-1 Calc] Building Category

[GT-1 Calc] Building Exposure

Project Information

Project Name

Architect

Drainage Results

Rainfall Intensity (10yr)

Rainfall Intensity (100yr)

Drainable Area (10yr)

Drainable Area (100yr)

Plan Area

Design Area

Min Number of Downspouts

Max Area Served by Each DS

Minimum Gutter Width

Minimum Gutter Depth

Minimum Downspout Size

GT-1 Results

Horizontal Perimeter Pressure

Vertical Perimeter Pressure

Horizontal Corner Pressure

Vertical Corner Pressure

Seal-Tite WR Gutter

Seal-Tite WR Gutter

Box, Offset, Chamfer

Seal-Tite XL Gutter

Seal-Tite XL Gutter

Box Version

Seal-Tite Industrial Gold Gutter IGG-B

Seal-Tite Gold Industrial Gutter

IGG-1, IGG-2, IGG-3, IGG-B

Seal-Tite Industrial Gutter IG-B

Seal-Tite Industrial Gutter

IG-1, IG-2, IG-3, IG-B

Seal-Tite LT Half Round Gutter

Seal-Tite LT

Half Round Gutter

Seal-Tite LT K-Style Gutter

Seal-Tite LT

K-Style Gutter

Industrial Downspout Closed Face

Industrial Downspout

Closed Face Version

Industrial Downspout Open Face

Industrial Downspout

Open Face Version

Scuppers and Collector Boxes

Scuppers and Collector Boxes

Seal-Tite LT Round Downspout

Seal-Tite LT

Round Downspout

Seal-Tite LT Corrugated Downspout

Seal-Tite LT

Corrugated Downspout

Flow-Thru Drain Bar

Flow-Thru Drain Bar