ᐅ Attach height-adjustable desk frame to solid wood tabletop

Hello everyone,

I would like to attach a height-adjustable frame to a solid wood desktop (oak).

The desktop is actually a finished model of a dining table, so it already has reinforcements with corresponding holes. Unfortunately, neither the holes nor the spacing of the reinforcements fit my project.

As a desk, I would like to have the frame positioned as far left and right as possible to allow comfortable seating. The frame can also be extended to the desired table width (according to the manufacturer, the tabletop can be max. 200cm (79 inches) wide. My desktop is 180cm (71 inches)). At the moment, the frame is fully retracted.

Now to my question for the wood experts among you: Can I simply screw additional reinforcements left, right, and in the middle onto the desktop and then mount the frame? There are joints in the desktop, but they only slightly extend beyond the existing reinforcements. Should there also be joints under my planned reinforcements on the left and right to prevent the wood from cracking?

Thanks in advance for your advice.

So you want to extend further out than shown in the picture?

As it is in the picture, that’s not a problem. In my opinion, you can also use slightly longer screws for that.

I would like to install the frame as far to the left and right as possible. That means on an additional reinforcement placed next to the edge of the panel. I’m attaching the picture again with a marking to help clarify what I mean.

However, as mentioned, there are no joints beneath this marking since they end shortly after the current reinforcements.