The current edition is a revision and replaces the ansi standard a123 1 1898 document.
Nomenclature of sliding door.
Swinging doors swing open on a hinge while sliding doors open side to side on a track.
Nomenclature for standard steel doors and steel frames the material contained in this document has been developed under the auspices of the technical committee of the steel door institute.
Door unit a door with a jamb hinges and is bored for door hardware.
There are two main types of doors.
The x s and o s are read left to right just looking your looking at the window from the outside of your house.
Let s start with the basics.
X marks the side of the window that operates not the direction that it slides.
L imits the door s opening swing it is part of the frame and the door rests on it when closed.
A slider left xo means the operator is on the left side and slides to the right.
The door slab is the actual door while the door unit includes the slab and the frame.
Inches millimeters 1 16 2 1 8 3 3 16 5 1 4 6.
Only the door no jamb hinges threshold or door hardware.
Exterior door units also include casing brick molding astragal and weather strips and is pre hung.
Sliding folding door hardware 3 nomenclature explained metric conversions 1 in.
25 4 mm 1 mm 039 in.
Swinging doors and gliding sliding doors.