MJC - Open Web Joist Connector

The MJC from Simpson Strong-Tie allows two open-web joists to be connected together to act as a single unit.

The benefit of the MJC is that is trasfers the incoming load from the loaded ply to the unloaded ply.

This simpe and effective design is universal in size and can therefore be used with any joist - regardless of it's height or width.

Benefits:

Very quick and simple to install
Safely joins multiple open-web joists together
Easy to check MJC's are installed
One size product fits all joist heights and widths
Only requires 3.75 x 30mm square twist nails
Assymetrical nail holes prevent wood splitting
Alternative detail to SDS screw installation

Request a copy of the MJC Open-Web Info Sheet

Position the MJC's onto the first I-Joist - ensuring that they are centred about the incoming load at 400 c/c (may be adjusted 10mm either way).

MJC Installation Step 1

Position the MJC's onto the first open-web joist - ensuring that they are centred about the incoming load at 400 c/c (may be adjusted 10mm either way). Ensure face nails are inserted into the loaded ply (see below).

Ensure face nails are inserted into the loaded ply.

Position the second joist, ensuring that the ends are flush and the joists are parallel. Secure the joist using 2 no. 3.75 x 30mm square twist nails per MJC into the top and bottom joist flanges.

N.B. Higher load applications may require additional MJC's to be installed, please refer to the joist layout.

MJC Installation Step 2

Position the second joist, ensuring that the ends are flush and the joists are parallel. Secure the joist using 2 no. 3.75 x 30mm square twist nails per MJC into the top and bottom joist flanges.

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