Hello I'm an absolute amateur in the third stage for my first DIY project of a display cabinet housed inside an unused chimney breast I have some 6mm recessed led profiles that I want to place into the front of the 18mm MDF Im concerned if I route out 6mm from the 18mm MDF to place the channels it will significantly reduce the weight the shelves can take or cause an other issues, the shelves are supported by 3x2 cls timber every 30cm Does anyone know if this will be a problem or am I worrying about nothing I'd really appreciate any guidance Thank you
Unless you are intending to display a collection of gold bricks, or concrete kerbstones, you have really overbuilt these shelves. The good thing is, it really won't matter if you rout a 14x6mm channel in the underside of the mdf- all the strength is in your cls framework.
Is that 6mm deep channels for drawer slides? Definitely too thin. I wouldn't take out more than half the material thickness, myself.