However dimensions and materials of the door also have an impact on this.
How many concealed hinges per door.
3 hinges are optimal for door weights of 6 12 kg.
For example a 90 door needs three hinges and a 91 door needs four.
This is probably one of the more common sizes.
A standard door 2000 mm h x 1000 mm w and a distance of 1540 mm between hinges.
Doors up to 60 need two hinges.
As a rule the door weight is key in determining the number of door hinges required.
Use of two hinges one load bearing in the case of concealed hinges both hinges are load bearing.
200 000 opening cycles for use on doors.
If a door is 40 to 60 in 101 6 to 152 4 cm high you should use 3 hinges to keep it stable.
For doors that are 60 to 80 in 152 4 to 203 2 cm tall you will need to use 4 hinges for enough support.
As a general rule you will want to use one hinge per every 30 of door or fraction thereof.
Doors 60 90 need three hinges.
However more hinges may be required per chart below.
In our experience the following number of hinges has been proven and tested.
Doors 90 120 need four hinges.
1100x675mm and weigh 8 8kg each have brought hafel concealed hinges was planning on three per door but am now wondering if we should fit four per door due to size and weight what do the pros reckon many thanks diydave apr 30 2016.
Every door should be provided with at least one hinge for every 30 inches in height or portion thereof.
The doors are fairly heavy and a size 2 doors in total approx.