Measuring a door frame

Tips when measuring your doorway

A gorgeous new door begins with precise measurement of your door opening. You definitely wouldn’t want to take the time to pick a beautiful new door only to have it not fit perfectly!

Why is an accurate measurement important?

Did you know that the height & width can vary for every doorway? So you must prepare enough room to make any adjustments. If your doorway is small or exactly the same size as your new door, chances are your door will be difficult to use and will look as if it was forced to fit.

In addition, openings are not always perfectly plumb and square. An accurately measured door frame should provide adequate space to properly fit the door and allow for an even margin between the frame and door.

Did you also know your door and door frame expands and contracts depending on the season, while this may not be obvious, it can have an effect on the fitting of your door. When the temperature drops, an ill-fitting door will not latch properly or when the weather warms up, you might notice that it sticks in the frame, allowing 3 to 4mm clearance on the hinge side, lock side and above the door will give you enough margin for all conditions.

How to get the right measurements for your doorway

When measuring, make sure to measure from the inside rebate of your door jamb and follow the below tips to get the right measurements:

  • Measure the door opening width at the top, middle and bottom of the door frame, be sure to measure from left to right in between the rebates where the door will sit.
  • Measure the door opening height at the left and right hand sides of the frame. Standard clearance of 10mm should be allowed under the door. If you want to install a thicker floor covering, allow for this extra height so the door has clearance.
  • Measure the diagonals to see if the door opening is square. Measure from top left corner to bottom right corner and vice versa. Your diagonal measurements should be the same. If not, it could be that the frame is out of square and you will need to allow for additional trimming when fitting the door.
  • Lastly, measure the frame rebate where the door sits, a 38mm rebate will suit a 35mm thick door and a 42mm to 44mm rebate will best suit a 40mm thick door. To order the right thickness of door.

When measuring the width, you might get the same measurements for all areas. If they are not the same, use the largest of the three measurements. This process should also apply for the height measurement. This is to ensure that you will get the best fitting door for your doorway 

Use these measurements to order your new Hume Door.

Once you’ve finalised your measurements you can choose from a wide range of doors and purchase your new Hume Door from any of our trusted suppliers.

If you’re looking to install your door yourself, we’ve got you covered with a step-by-step video on how to install a door!