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.
How many concealed hinges per door.
200 000 opening cycles for use on doors.
The doors are fairly heavy and a size 2 doors in total approx.
2 hinges are optimal for door weights of 4 6 kg.
Every door should be provided with at least one hinge for every 30 inches in height or portion thereof.
Doors up to 60 need two hinges.
If a door is 40 to 60 in 101 6 to 152 4 cm high you should use 3 hinges to keep it stable.
Doors 90 120 need four hinges.
Use of two hinges one load bearing in the case of concealed hinges both hinges are load bearing.
In our experience the following number of hinges has been proven and tested.
As a rule the door weight is key in determining the number of door hinges required.
However more hinges may be required per chart below.
Directions after determining the weight and width of the door draw a straight line through the door width and weight to.
This is probably one of the more common sizes.
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.
Doors 60 90 need three hinges.
A standard door 2000 mm h x 1000 mm w and a distance of 1540 mm between hinges.
As a general rule you will want to use one hinge per every 30 of door or fraction thereof.
For example a 90 door needs three hinges and a 91 door needs four.