The backside of moldings

[tobiias]

I will be installing baseboards and door frames in a classic style. They are profile milled on the front, but the back also has a type of milling. What is this milling for?



So they are thicker at the top and bottom and also have two 2 mm grooves in the middle on the back. Is the idea to attach the moldings in the thicker part?

 

[Ola78]

The grooves on the back are meant to even out tensions in the wood so it does not warp as easily. The same principle is usually applied to siding boards. Personally, I tend to nail the moldings with a brad nail on each edge about 30 cm apart. Buy yourself a brad nailer so you can nail quickly and smoothly.

 

[KnockOnWood]

The tracks on the back are meant to even out tensions in the wood...

Well Ola,
I would like to suggest that the milling is rather done so that the baseboard can be mounted neatly,
flush against the wall,
even if it warps and curves with the middle towards the back.

 

[Ola78]

Well Ola,
I would like to argue that the routing is rather done so that the baseboard can be mounted nicely,
flush against the wall,
even if it warps and cups with the middle towards the back.

That the routing has that function I understand, but the trim also had two grooves as Ts wrote, and these are probably intended for the purpose I described, or am I totally off base? I have at least been taught that such grooves are made to reduce tension in the wood.

 

[JOW]

The list in the picture is therefore not TS's own list, the list in the picture lacks the tracks... I think you are both right... about different things

 

[KnockOnWood]

...or am I completely off base?...

Ola, you know that you sail fastest against the wind

Of course, you're right! I was just looking at the picture that JOW writes.

 

[Ola78]

So glad we cleared that up, we were both right Credit to you for admitting you were wrong, I appreciate people who can realize when they are wrong and admit it without shame. Have a nice evening