How do i determine the size of the hinge i need.
Door hinge dimensions.
Three dimensions are needed to ensure the replacement hinge fits into an existing mortise.
Door hinges are measured by the dimensions when the hinge is open and lying flat.
Use two hinges for doors up to 60 inches tall.
An easy test to determining the radius you need is to take a dime and a nickel.
They can come with both square and rounded corners.
3 inches 3 1 2 inches 4 inches.
Step 1 open the door.
Residential ball bearing hinges are typically for doors 1 1 4 1 1 2.
A thick door of 1 3 4 inches with a width of 36 inches to 48inches requires a hinge size of 5 inches.
Some larger residential doors usually entry doors use a 4 x.
The common sizes for door residential door hinges are 3 and 3 1 2.
When replacing an existing door hinge finding the size is as simple as taking a quick measurement.
When installing a 1 3 4 inches door that is 36inches wide buy a hinge size of 4 1 2inches.
With very few exceptions all standard door hinges are squares and sized in 1 2 increments ex.
The height of the door is used to determine how many butt hinges you need.
For doors between 90 inches and 120 inches use four hinges.
A new door of 1 3 8 inches thick but 32 to 36 inches wide a hinge size of 4 inches will do the trick.
Use three hinges if the door is between 60 and 90 inches tall.
What is the difference between commercial and residential door hinges.
A dime match a 1 4 radius hinge and a nickel match a 5 8 radius hinge.
A 3 1 2 x 3 1 2 hinge will be 3 1 2 high have a center pin and two plates that are approximately 1 1 2 wide.
In general you ll want to use one hinge for every 30 inches of door height.