Installing Metal Frame Doors

Without knowing more about your existing building, on a door that heavy I would install a 6" channel iron frame with 1/2" concrete anchors at the bottom, 3/8" plate ties, and use two 30º 2x2x1/4" angle iron or 2 x 1/8" tube kickers at the top corners to steel joists.

If the joists are not side supported at the attachment point, then add additional "X" joist bracing between joist to joist connecting points.

A 30º angle is just about the strongest design angle for the least amount of material required.

This channel iron sub framing should just about take anything a door that size could put on it, like when the wind catchs the door. I sure would use a hydraulic closer on the door to keep fingers from getting smashed.

T_Bone

If this is a manufactured metal building, and this is a door designed for use in metal buildings, your first wall girt is at the seven foot level. A standard metal building door is exactly the right height to attach directly to a Z or C girt with some self drilling screws.

Charles

Charles

Install Girts, studs, headers, where needed and be sure to fasten them to steel structure.