Metal PCB shields need to be soldered on?

[cupoftea]

We have three low voltage, SMD, Buck converters for overall 12W that we want to shield (block radiated emissions) with the following through hole metal PCB shield.
BMI-S-205-F and BMI-S-205-C. (on page 11 of the following.....)
https://www.laird.com/sites/default/files/board-level-shields-catalog-download.pdf
Does the Frame bit have to be soldered in to the PCB ?(ie presumably the PCB slots are plated through for soldering purposes?

Also, regarding the PCB shield.....
(BMI-S-205-F and BMI-S-205-C).....is there any reason that our mechanical engineer can't copy these, so that we can make our own?

 

[emresel]

question is not obvious though yes a shield must be soldered to gnd part of PCB, it is supposed to create a faraday cage with gnd plane underneath the circuit. Hence block radiated emi

 

[c_mitra]

The cage must be connected to ground; it should appear as a box. If you do not connect the cage to ground, there will only partial protection.

 

[FvM]

Does the Frame bit have to be soldered in to the PCB ?(ie presumably the PCB slots are plated through for soldering purposes?

Look sharp, the part is intended for surface mounting and uses ground connected SMD pads rather than slits.