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Simpson MSC5 Multiple-Seat Top-Flange Connector

Simpson MSC5 Multiple-Seat Top-Flange Connector

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  • This item is made to order and is non-returnable - Please call us at 888-794-1590 for exact lead times on this product

The MSC supports the ridge and two valleys for roof construction. Ideal for dormer roof applications.

HDG finish available, please let us know when placing your order.


  • Distribute the total load evenly about the centerline to avoid eccentric loading
  • Fasten all built-up members together as one unit
  • Net height will be calculated based on specified valley member depth and slope by the factory unless noted otherwise

Sloped and/or Skewed Valleys

  • The valley stirrups can be sloped down to 45° and skewed from 25° to 45°. (MSC5 skewed 20°–45°.)
  • The total design load of the hanger is split between the ridge (20%) and each valley (40%).
  • MSC connectors can be used for two valley connections with no ridge member. Divide the total load by two for each valley load.
  • Hip/valley connections and many combinations of joist sizes, slopes and skews can be manufactured (refer to MSC Multiple Seat Connector Special Order Worksheet, T-MSC-WS).
  • Reminder: Hip and valley slopes are typically much different than roof slopes. See the online Slope and Skew Calculator for assistance in computing slopes and skews.

NOTE: The correct fasteners installed in the correct position must be used to achieve published load values.

California Residents: WARNING


Fasteners required: See Spec Sheet
Manufacturer name: Simpson Strong-Tie
For Treated Lumber: No
Product Guide: View Spec Sheet
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× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit:

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