We Dragged a Router Through 12 Real Homes. What We Found Will Make You Rethink Everything

You've probably read some version of the same router placement advice a hundred times. Center of the house. Elevated position. Away from the microwave and the fish tank. Keep it out of closets. Got it. Great. But here's what none of those articles tell you: most of that advice was written for a house that doesn't exist.

Real American homes are weird. They've got load-bearing walls in bizarre places, HVAC ducts cutting through floors, garages converted into offices, and additions slapped on in 1987 that never quite lined up with the original blueprint. The "center of the home" in a split-level ranch means something completely different than it does in a rectangular apartment.

So we decided to stop guessing and start measuring. Over eight weeks, our team visited 12 homes across the US — different sizes, different construction types, different layouts — armed with heat mapping software, a calibrated set of test devices, and a willingness to move routers into places that made homeowners raise their eyebrows. Here's what we actually found.

How We Tested

Our 12 homes spanned a deliberate mix of dwelling types: three urban apartments (New York, Chicago, Denver), two 1960s-era brick ranch houses, two wood-frame split-levels, two modern open-plan builds, one 100-year-old craftsman, one 1970s two-story with a finished basement, and one manufactured home in rural Tennessee.

In each home, we ran the same router (a mid-range WiFi 6 model most households would actually own) through a minimum of four placement positions, generating heat maps using NetSpot and cross-referencing with iPerf3 throughput tests at fixed points in every room. We also noted construction materials, approximate wall thickness, and the location of major appliances.

No cherry-picking. No skipping the awkward rooms. Every square foot counted.

Finding #1: "Center of the Home" Is a Myth for Most Houses

In the three apartments and the two open-plan builds, centering the router worked exactly as advertised. Signal radiated outward evenly, dead zones were minimal, and moving the router off-center by more than about 10 feet caused measurable drops at the perimeter.

But in every other home type? Geometric center was often the wrong answer.

In the split-levels, the center of the home sat at a staircase landing — a location surrounded by thick partition walls on three sides. Placing the router there produced a heat map that looked like a sad, lopsided blob. Moving it to an open upper hallway, technically off-center, improved whole-home coverage by an average of 31% in our tests.

In the craftsman home, the center of the house happened to sit directly adjacent to a plaster-and-lathe interior wall — a construction style that absolutely murders WiFi signals (more on that in a minute). Shifting the router one room over, toward the open living area, fixed coverage in four rooms simultaneously.

The real rule: place your router where it has the most unobstructed line-of-sight to the most rooms, not necessarily where the floor plan is geometrically balanced.

Finding #2: These Materials Will Absolutely Wreck Your Signal

We measured signal attenuation through every major material we encountered, and the hierarchy was consistent across all 12 homes:

• Plaster-and-lathe walls (common in pre-1950s homes): Brutal. We saw 30–40% signal loss through a single interior wall. Two of those walls and you're basically starting over.
• Brick exterior walls: Nearly as bad. The 1960s ranch houses had exterior brick that dropped signal by 25–35%, which is why the backyard was a dead zone in both cases.
• Concrete floors (finished basements): Floor-to-floor penetration was consistently the worst performer. A router on the main floor rarely provided usable signal in a finished basement without a dedicated access point.
• Metal HVAC ducts: Surprisingly disruptive. In two homes, routing the router away from a major duct run improved signal in adjacent rooms by 15–20%.
• Standard drywall: Much better than its reputation. Single-layer drywall barely registers as an obstacle in modern construction. Don't stress about it.
• Glass (windows): Largely irrelevant indoors, but exterior-facing windows actually let signal escape the house rather than reflect it inward — a minor but real inefficiency.

Finding #3: Height Matters, But Not for the Reason You Think

Conventional wisdom says put your router up high because WiFi signals propagate downward and outward. That's... partially true, but the homes we tested revealed a more nuanced picture.

In single-story homes, router height between 4 and 6 feet off the ground made essentially zero measurable difference. The signal pattern at those heights was functionally identical. Going up to 8 feet (a shelf near the ceiling) produced marginally better results in open areas but made almost no difference in adjacent rooms.

Where height actually mattered was in multi-story homes. A router placed on the second floor versus the first floor of our New Jersey colonial produced dramatically different basement coverage — and not in the way you'd expect. The second-floor placement was actually worse for basement coverage because the signal had to penetrate two floor assemblies instead of one. For whole-home coverage in multi-story builds, the main floor (not the top floor) consistently outperformed.

The real rule: height within a single story is mostly irrelevant. What matters is which floor you're on in a multi-story home.

Finding #4: The Free Fixes That Actually Work

Across all 12 homes, we identified placement adjustments that cost exactly nothing and produced real, measurable improvements. These aren't tips we read somewhere — these are things we tested and confirmed with heat maps:

Rotate the router's antennas. Most people leave all antennas vertical. Pointing one or two antennas horizontally (at 90 degrees) dramatically improved floor-to-floor coverage in our multi-story tests. Signal propagation changes significantly with antenna orientation.

Move it away from the TV stand. In seven of our 12 homes, the router was sitting behind or beside a large TV. Entertainment centers are basically a metal-and-glass obstacle course. Moving the router to an adjacent bookshelf or mounting it on the wall behind the TV (pointed outward) improved signal in the living room itself by 10–18%.

Unplug the cordless phone base. Two of our test homes had DECT 6.0 cordless phone bases sitting within two feet of the router. Both caused intermittent interference on the 2.4 GHz band. Moving them three feet apart solved the problem immediately.

Don't hide it in a cabinet. We found routers tucked in media cabinets in four homes. In every single case, opening the cabinet door improved signal. In two cases, simply relocating the router outside the cabinet increased throughput in the adjacent bedroom by over 40%. Forty percent. For free.

When Placement Alone Isn't Enough

We want to be honest with you: in four of our 12 homes, no amount of clever placement fully solved the dead zone problem. The brick ranches, the craftsman, and the two-story with a finished basement all had structural challenges that a single router couldn't overcome regardless of where we put it.

In those cases, the right answer is a mesh system or a wired access point — not a different spot on the shelf. If you've exhausted placement options and you're still seeing dead zones in rooms you use regularly, that's the signal (pun intended) that you've hit the limits of single-router coverage.

But before you spend $300 on new hardware, spend 20 minutes repositioning what you've got. Based on what we saw across 12 real homes, there's a better-than-even chance you can meaningfully improve your WiFi without spending a single dollar.

And if you do need to upgrade? Well, that's what we're here for.

Want us to test your home type? Tell us in the comments. We're always looking for the next WiFi challenge.