Number Of Door Hinges Per Door

Doors over 60 inches but not over 90 inches need to use 3 hinges.

Number of door hinges per door.

As a general rule you will want to use one hinge per every 30 of door or fraction thereof. For example if you have a 1 3 4 thick door that is 8 0 by 3 2 and made out of oak you would calculate the square inches of the door 96 x 38 3648. Doors up to 60 inches need 2 hinges. Doors up to 60 need two hinges.

2 hinges are optimal for door weights of 4 6 kg. In our experience the following number of hinges has been proven and tested. Doors 90 120 need four hinges. 3 hinges are optimal for door weights of 6 12 kg.

The door height also affects the number of hinges required. Doors 60 90 need three hinges. The result is your door weight in pounds. Every door should be provided with at least one hinge for every 30 inches in height or portion thereof.

For example a 90 door needs three hinges and a 91 door needs four. For high and narrow doors for example it may be wise to use three hinges for extra stability even though with a weight of 6 kg this is not strictly. It is important to consider the weight of the door including additional weights such as handles. Referring to door height.

However more hinges may be required per chart below. Doors up to 60 2 hinges doors over 60 but not over 90 3 hinges doors over 90 but not over 120 4 hinges. To calculate your door weight multiply the size of your door in square feet times the number in the chart above pounds per square feet. Referring to door height.

Doors over 90 inches but not over 120 inches 4 hinges are recommended.