Measuring and preparing extensions

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The technological task of extensions is to serve as a platform for fastening the door frames. In order for the door frames to lie correctly, the end of the extensions must lie on the same line with the plane of the wall. Measurements should be taken on the already installed door frame. The measurements are taken in the following ways.

Place the ruler on the stop platform in the box, hold austria mobile database ruler perpendicular to the wall. Take measurements at the top and bottom of the vertical extensions and at the corners of the horizontal. You are unlikely to find perfectly high-quality walls, there will always be a spread in width. Be sure to mark the dimensions of the left and right extensions.
We take measurements

A more accurate method of measurements can be obtained using a square. The square is placed on the landing place, and a straight strip is applied to the wall. Their intersection point indicates the width of the extension. Measurements should also be taken at several points.
Measuring extensions with a square

For adjustable extensions, the algorithm for taking measurements changes slightly. First of all, you need to measure the depth of the groove in the door frame, do this with a thin ruler. After that, use one of the specified methods to measure the distance from the wall to the frame and add the groove depth to the obtained values. The presence of a groove allows you to push out/pull in the already cut extension from the door leaf by several millimeters, which increases the accuracy of its installation.
Now you need to find out the height of the left and right elements and the length of the horizontal one. At the top of the box, the extensions are connected with the letter U, take this into account when taking measurements.

You can cut the extension boards with a hand saw, electric jigsaw, portable electric saw or on a stationary machine. The latter option is preferable - it speeds up the work considerably, increases its accuracy and minimizes the risk of chipping.

First, cut the blanks to length, then mark the width at the ends of each. Draw a straight, even line and carefully cut off the excess. It is better to draw an even line with the same extensions; you will not have to look for even and long wooden slats. At the cut point, you need to remove a small chamfer, so the board will fit more tightly to the door frame.