Sister Sites

Noise Control
Anechoic Chambers
Sound Level Meters
Audiology Rooms
Noise At Work
School Acoustics

1. Inspect. If carton or doors are damaged from shipping (bent shaft, etc.) contact the factory
2. Check jamb and header for plumb, level and square (measure diagonals).
3. Match size of door opening to size on packing slip.
4. Mark center plumb line on jamb.
5. Remove the top mounting angle from door by removing the hardware housing from the top corner of each side
6. Line up the center line on the bottom of the mounting angle with the jamb centerline. Use the angle as a template to mark the hole locations on the jamb and header and center-punch the holes.
7. Use the jamb guard as a template for the bottom mounting holes, lining up the centerline of the jamb guard with the centerline of the jamb. Mark the hole locations on jamb and floor and center-punch the holes.
8. Drill centers with #7 bit (for steel channel), tap 1/4-20 and fasten to jamb with 1/4-20 bolts.
9. If jambs are wood or hollow metal over wood, fasten using 1 1/2" wood lags. Hollow metal frames without wood rough blocks should have 1/4" steel reinforcements (b/o) at jamb and header locations.

Next Step 2