Opening heights 3 0 through 4 11 15 16 centered in door height not frame.
Standard door hinge height uk.
If it is a bigger two leaf door you may need 4 hinges.
All of the standard uk and metric door sizes are usually available as a fire door equivalent with the only difference being an increased door thickness of 45mm.
When a door starts to sag and hang crooked it always does so from the top so the upper part of the doorknob side is where it will start to catch.
The third hinge is centered between the top and bottom hinges.
The main difference being an increased door height of 2040mm and door thickness of 40mm.
The upper hinge is 7 from top of door to top of hinge the bottom hinge is 9 from the floor to the bottom of hinge and the middle hinge in between.
2040 x 526 626 726 826 926 x 40mm.
As a general rule you will want to use 1 hinge per every 30 inches of door or fraction thereof.
Fire door standard sizes.
Referring to door height.
Doors up to 60 inches need 2 hinges.
For a standard internal door its door lock is normally 42 from the floor to the centre of the latch.
How to determine hinge spacing on a door.
Many hinges per door.
However if the door is between 32 inches and 36 inches the leaf height of the hinges must be increased to 4 inches to handle the increased weight.
All standard bored locks ansi 115 2 161 61l type for mortise lock ansi 115 1 86 type all locations must be altered 3 8 lower and standard strike asa type.
Standard interior door height is 80 inches.
This is the most common height for passage doors that lead from one room to another.