# Forest River Sandpiper 3900HBLR

3900HBLR is a fifth wheel floor plan by Sandpiper (Forest River).

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 42 ft 9 in |
| Sleeps | 3 |
| Slide-outs | 3 |
| Dry weight | 13,284 lbs |
| GVWR | 16,085 lbs |

## Model years

2026, 2025. Year-specific specs: `https://rvenvy.com/fifth-wheel-trailers/forest-river/sandpiper/3900hblr?year={year}`

## Inventory

49 units currently for sale priced $63,495 to $84,995: https://rvenvy.com/fifth-wheel-trailers/forest-river/sandpiper/3900hblr/inventory

Floor plan diagram: https://images.rvenvy.com/4385c067a79f509e8e3f5289a68dd946fc5e095af302e16211c2949ad44acad5/1024.webp

Canonical page: https://rvenvy.com/fifth-wheel-trailers/forest-river/sandpiper/3900hblr