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Door Calculators

Clear Effective Width Calculator

Door Size (mm)
Overall Tolerance to Width (mm)
Door Thickness (mm)
Rebate/Stop Size (mm)
Hinge Knuckle (mm)
Handle Projection (mm)
Effective Clear Width

Please enter the door width size that you wish to know the the clear effective opening for and follow the below steps.

1) Enter the overall tolerance for your doorset i.e. a fire rated single door would have a gap between the door & frame of 3mm each side, so 6mm overall all.

2) Enter the door thickness

3) Enter the stop/ rebate size on the frame i.e. if you’ve got a 32x12mm stop enter 12.

4) Enter the hinge knuckle size required. (Please note all our hinges used on doorsets have a 14mm knuckle)

5) Enter the handle projection size from the face of the door. Please note if the door opens past 90 degrees or the door is for a dwelling then handle size is not relevant.

 


Door Size Calculator

Effective Clear Width Required
Overall Tolerance to Width (mm)
Door Thickness (mm)
Rebate/Stop Size (mm)
Hinge Knuckle (mm)
Handle Projection (mm)
Door Size Needed

Please enter the required clear effective opening you need to achieve and follow the below steps.

1) Enter the overall tolerance for your doorset i.e. a fire rated single door would have a gap between the door & frame of 3mm each side, so 6mm overall all.

2) Enter the door thickness

3) Enter the stop/ rebate size on the frame i.e. if you’ve got a 32x12mm stop enter 12.

4) Enter the hinge knuckle size required. (Please note all our hinges used on doorsets have a 14mm knuckle)

5) Enter the handle projection size from the face of the door. Please note if the door opens past 90 degrees or the door is for a dwelling then handle size is not relevant.