🪂 Hammock Hang Calculator
Find your ideal hang angle, strap length, ridge height, and anchor spacing for a perfect hammock setup
| Hammock Length | At 30° (ft) | At 30° (m) | At 25° (ft) | At 35° (ft) |
|---|---|---|---|---|
| 9 ft (2.74m) | 7.8 | 2.38 | 8.2 | 7.4 |
| 10 ft (3.05m) | 8.7 | 2.65 | 9.1 | 8.2 |
| 11 ft (3.35m) | 9.5 | 2.90 | 10.0 | 9.0 |
| 12 ft (3.66m) | 10.4 | 3.17 | 10.9 | 9.8 |
| 13 ft (3.96m) | 11.3 | 3.44 | 11.8 | 10.6 |
Anchor distance = hammock length × cos(angle). Excludes strap length.
| Hammock Length | Ridgeline (83%) | Ridgeline (ft) | Ridgeline (m) |
|---|---|---|---|
| 9 ft | 83% of 9 ft | 7.47 ft | 2.28 m |
| 10 ft | 83% of 10 ft | 8.30 ft | 2.53 m |
| 11 ft | 83% of 11 ft | 9.13 ft | 2.78 m |
| 12 ft | 83% of 12 ft | 9.96 ft | 3.04 m |
| 13 ft | 83% of 13 ft | 10.79 ft | 3.29 m |
Structural ridgeline is typically 83% of hammock body length for optimal sag at 30°.
| Type | Common Length | Stretch | Leave No Trace |
|---|---|---|---|
| Whoopie Slings | 36–48 in adjustable | ~1% | Yes (1.5in+ width) |
| Polyester Webbing | 6–10 ft | ~2% | Yes (1in+ width) |
| Nylon Webbing | 6–10 ft | ~10% | Conditional |
| Tree Hugger Straps | 10–15 ft | ~3% | Yes (wide) |
| Rope / Paracord | Variable | <1% | No (too thin) |
| Structural Ridgeline | Hammock × 83% | ~0% | N/A |
| Sit Height (in) | At 30° (in off ground) | At 25° (in off ground) | Notes |
|---|---|---|---|
| 12 in | ≈42–48 in | ≈44–50 in | Low / tarp friendly |
| 18 in | ≈48–54 in | ≈50–56 in | Standard |
| 24 in | ≈54–60 in | ≈56–62 in | Easy entry/exit |
| 30 in | ≈60–66 in | ≈62–68 in | Very high |
Install hammock in camper or RV seems simple but some real troubles happen. Walls of most RVs were not built to last such weight. Older models of RVs use quite a lot weak wooden or aluminum frames.
New campers commonly have aluminum walls on flat base. Either way simply poking hole in wall and setting hook here is mistake. It only ruins the structure.
How to Hang a Hammock in a Camper or RV Safely
Smart way is lay the hammock along the length of the vehicle. Many campers own extra low walls, so set it at the corners ensure stronger support, because here the walls usually are thick. To truly mount it, you need hooks, bolts, drill and heavy duty plug like Loctite.
First measure the distance right, so that the hammock hangs well.
Heavy duty bolts and D-shaped rings help to expand the load space. Toggle bolts form other handy option for fixing objects to the wall. Another method is made up of drilling with backing plates through the wooden beam, that most RVs have up at the walls, although the pressure, that hammock does on the frame, can surprisingly grow.
No one wants, that ceiling fall or that walls pull inwardly. Basically, walls of RVs is made up of polystyrene, so the usual home method with wall anchors simply will knot work here.
Some families came up with creative ideas though. One group outgrew the size of his RV and had more members than beds, so they laid internal swing and one child sleeps in the hammock. For daily life, one can take one end and hang it away every morning.
When internal hanging is too risky, other options exist. Car hammock fixtures attach to the car. Simply extend the branches of the hammock above the trailer bar and hang it between them.
Hammock stands form other option. The freestanding hammock stand reaches twelve feet of length, what works for big campers that want to lie down. It fits with whole range of hammocks.
Folding tensegrity stand works well in spots without natural anchor points. Tensa and Yobo are known for great hammock stands, while most other market offers do not impress.
Laying hammock in short truck bed can become fun task also. One way, that seems good, is a ten foot pole above roof cabinet with the hammock tied to the end. Clips can attach telescope tubes to the main pole to stop sliding during journey, andthey also serve as hammock fixtures.
