Field splice (head/sill) installation instruction.
When your get a frame with a UL fire label, you must install it correctly to achieve the listed rating. Here are installation instructions for each type of frame and wall construction that will assure your installation meets its life safety requirements.
Field splice (mullion) installation instruction.
KD drywall frame instruction.
KD Frame installation instruction (non-drywall)
Masonry wall frame installation instruction.
Steel stud wall frame installation instruction.
Wood stud wall frame installation instruction.