Task problem addressed: what about wood connections?

Klusexpert Dennis Mulder gives weekly tips on jobs in and around the house.

I dare say I‘m pretty handy. I have therefore gained the necessary experience. I started early with my father in his construction company, worked with television in set construction, as a handler outside and in the picture, I once built my own house.

I met my girl when she came to do an internship at the job program I presented. Except for some side jobs, she was alone in school at the time of the university internship. Although she was not averse to sticking her hands out of her sleeves, she was not very handy. Very stubborn, though.


When we became a set years later, I had already forgotten that last one. Until I fell through her designer chair. At first I felt guilty, I was wobbling and maybe a little too heavy for the slender chair, but then the monkey came out of the sleeve. He was already broken, and she had fixed it herself, she told me proudly. How? With all slime. That very first time I wisely kept my mouth shut and promised that I would fix it again, because I had broken it too.

With glue, of course, you can do a lot. But the most robust and as far as I’m concerned most beautiful way to connect wood is a wood compound. There are open and blind connections. An example of the first is the dovetail connection that you encounter a lot in furniture, especially in drawers. If this compound is well sawn and stabbed, it is pleasing to the eye. The blind connections are much more often encountered and, as the designation suggests, you do not see them. Blind connections can be found in window frames, windows and doors.

The pen-and-hole connection is one of the oldest. On one piece of the wood a pen and in the other side a hole. When this connection is assembled, a wooden wedge is struck at right angles through the pen that holds the whole together.


Once in a while this wedge is put on so that the connection stays tight together. With the advent of glue, the wedge has fallen in most cases and became a real blind joint.

With the advent of nails and screws, wood joints became less needed, but they are still applied, often in combination with glue. You could also glue something cold against each other, after all glue is very strong, provided you choose the right one, and will not break down on but behind the glue. In addition, a wood compound ensures a surface enlargement of the part to be glued.

My girl understood that well; pen-and-hole connection, so glue. But not all slime. For this kind of job I prefer to use a polyurethane based glue. This is an adhesive that does not expand as a PUR (building foam) during drying. This means that the glue squeezes well into all the small cracks and deviations from the joint. For all adhesive joints apply: clamping with an adhesive clamp during drying.

On my YouTube channel Mulder Makes I show some alternative wood connections.