Ultra Rail Configuration Tool

Project Info:
PV Module Data:
*If you cannot find your module on this list, please select "Custom" from the Module brand drop down menu, and manually enter the module specifications on the right side of your screen
Environmental Requirements:
Verify Module Dimensions and Frame Color
Length - inches
Width - inches
Depth - inches
Weight - pounds
Rated Power - W
Frame Color -
Roof Mount Calculator-Tilt Up:
*Use (-) for N facing roofs, 0 for E or W facing roofs
Construction Image
Configure each sub-array layout using the Sub-Array tabs. Modules may only be in one orientation per sub-array. For example, if a sub-array of portrait modules has the top row in a landscape configuration, move the landscape modules to a new sub-array.
Define the Edge / Corner zones of the array. Edge Zones and Corner Zones are high wind load zones near the edges of the roof and have a width defined by the building dimensions. Rails with attachments that lie within edge zones require additional attachments in order to obtain a shorter rail span. The edge zones and/or corner zones of the roof area shall be determined based on the building's least horizontal dimension (LDH). The Edge Zone distance, a, is equal to 10% of the LDH (a = .1 * LDH). Rail spans in the Edge and Corner Zones are specific values from the SnapNrack Structural Engineering Report and these rail spans will only apply to the roof attachments located within the Edge and Corner Zones (does not apply to modules or rails that overhang into the zone).
Module rails run left to right on screen (represented by red lines in array).

Click module to change color
 - Regular
 - Edge Zone
 - No Module

Recommended maximum attachment spacing: -

Extra Materials

Preliminary BOM:
Part Number Description Qty Extra
- -
Additional Material:
Company Name -
Project Name -
Create Date: -
BOM #: -

PV Module Data:

Series -
Module brand -
Model -
Length -
Width -
Depth -
Weight -
Frame color -
Module clamp color -
Rated power @ STC -

Environmental Requirements:

Standard -
Snow Load -
Wind Speed -
Exposure Category -
Rafter Spacing -
Roof Attachment -

System Style:

Rail Finish -
End Clamp Type -
Grounding Method -
Microinverter/Optimizer Attachment Kits -
Array Edge Screen? -
Array Edge Screen Size -


Sub-Array Sub-Array Modules 168" Rail Rail Splices Mid Clamps End Clamps Edge Screen Roof Attachments Maximum Rail Span
- - - - - - - - -
- - - - - - - -

Proposed Bill of Materials

Part Number Description Qty Extra Total
- - -
System Total Weight: