@NeilR_M Actually, I meant 2x ES220GMP (16-port) because the ES228GMP is also 13-inches deep! But never mind because I think you've solved my problem with the SG2428P suggestion as the spec looks...

I have a fairly large home network based around an SG1016PE switch with two ES208GP switches for outbuildings and a total of 8 EAPs plus an OC200 hardware controller. The ES208 switches are...