Here is my approach to laying a home infrastructure in 2021, which varies based on three key items. I also have several other things that I consider (construction type, location, weather, phones, multiple structures, etc.), but I am going to focus on the key items.
1. Budget - What is your overall budget? You can always upgrade hardware later, but infrastructure is key at the time of construction, as cost/time/effort goes up if you install later.
2. Size of the home
3. ISP and Functionality required
The first item is your ISP and/or Cable provider.
1. Check to see what speeds are available in your area, and what your budget will allow.
2. Decide on how you plan to deliver television content to each of displays - Set top box or online service. Most of the large cable companies are getting away from set top boxes, and moving to an APP.
Laying out the primary network in your home.
The first spot is your MDF (Main Distribution Frame), which typically consists of a wiring rack that connects your internal cabling with the private lines or services coming into the home. I also recommend installing a patch panel opposed to using crimp-on ends.
Install Cat6 cabling to the following locations, and label all connections. You will have some locations with a single drop, and others that will need more than one.
1. Location of wireless access point(s) or wireless router(s) (WAP(S) or AI-Mesh) to provide proper coverage inside and outside the home (garage, patio, pool area, porch, etc.)
2. Location of all stationary displays (TVs)
3. Location of all game consoles
4. Location of all camera's (PoE (Power over Ethernet) is highly recommended)
5. Location of all IoT devices that can be wired - Philips Hue, Samsung SmartThings Hub, Door Access, Surround Sound Systems, Apple, TV, etc.
6. Location of stationary computer systems -- Office, Bedrooms, Breakfast nook, etc.
7. Location of printers (Recommend hard wiring printers)
8. Location of any other network devices -- NAS, Work out equipment, Appliances, etc.
Install Coax cabling to setup top box locations if required by your cable or satellite provider. I just moved away from set top boxes in 2020, and no longer have a need for Coax in my home.
Primary Equipment
1. Router - Make sure your primary router can support your Internet speed.
2. Install a Gigabit network switch to support the connections above -- Switches are typically 5, 8, 24 or 48 port. If you are planning to install WAPS, camera's, VoIP phone(s), or devices that support PoE, make sure you purchase a PoE switch.
3. Build out your home network from here....
Wireless is nice to have, but I prefer to hard wire all my primary equipment.