Mobile Home Tie-Down & Anchor Calculator

This works out roughly how many anchors and frame ties your home should have, so you can tell whether what is under it now is obviously short.

It reports a range, never a single number, because the binding figure is the spacing table in your own home’s installation manual. Anyone claiming to know the exact count without that manual is guessing.

Why anchoring matters this far inland

Marion County is a long way from either coast and it is still HUD Wind Zone II, rated to 100 mph. Tropical systems do not stop at the county line, and the winds that matter reach well inland. Ocala has taken damaging winds from storms whose landfall was hours away.

The homes we worry about most are the ones set before the 1994 HUD standards, anchored to a lighter rulebook. Marion County has a very large population of older manufactured homes, many in parks established decades ago, and a great many have original anchoring that has never been inspected.

The soil question, which is a Marion County question

Anchor capacity depends on what the soil will actually hold, and this county has unusually variable ground: deep sand in places, limestone close to the surface in others, and everything in between. That is the same geology that produces Silver Springs and Rainbow Springs.

The practical consequence: an anchor type that holds well on one lot can be marginal on another a short distance away. Soil class is part of the installation standard for exactly this reason, and it is why anchoring here deserves assessing rather than assuming.

What goes wrong with existing anchoring

Corrosion at the soil line. Straps and anchor heads rust where wet sand and oxygen meet. A strap sound at the frame can be substantially gone where it enters the ground.

Loss of tension. As a home settles, the geometry changes and straps slacken. A loose strap is doing very little.

Anchors that moved in saturated ground. After a wet season or a tropical system, anchors that were adequate can have loosened.

Missing ties at the ends. The standard wants a strap within about two feet of each end, and this is a common omission on older installs.

Too few for the home, especially on homes that were widened, added to, or moved.

What to do with the number

Go and look underneath, or have someone look. Count what is there and compare. Short count, slack straps, or rust at the soil line all warrant dealing with regardless of whether anything inside the home is sticking.

Anchor and strap work runs $1,500–$3,500 for a full retrofit or new install on our pricing page, with individual anchors quoted per anchor and strap re-tensioning often bundled into a relevel at little or no extra cost.

That last point matters: if the home is being releveled anyway, that is the cheapest moment to sort anchoring, because the crew is already underneath and the skirting is already off.

Licensing, which is not optional in Florida

Florida licenses mobile home installers, and anchoring on a sited home is installation work under that licence. Ask for the number in writing, verify it is current with the state, and ask separately for the insurance certificate. The installer licensing page covers how.

This is where the licence matters most in practice, because anchoring disappears the moment the skirting goes back on. You cannot tell good work from bad by looking at it.

The other two free tools

The settling self-check scores twelve visible signs and will tell you honestly if nothing is wrong. The cost calculator prices a relevel from the published table.

We cover Ocala, Belleview, Summerfield, Silver Springs, Marion Oaks, Dunnellon, Ocklawaha, Weirsdale, and Citra.