rigsize

Forest River FR3 34DS mattress size

Years 2019–2026Sold as FR3 Ford, FR3Length 35' 11"
72 in 80 in
To scale. Dashed: a regular queen.
Main bed72 × 80 inRV king

That's an RV king, 4 in narrower than a regular king (76 × 80 in). A regular king won't fit, so get an RV king in exactly 72 × 80 in.

About the RV king size →

2023 Forest River Fr3 brochure, 2023.

Bunks48 × 84 in Bunk. Forest River spec sheet, 2024. Common RV bunk sizes →

Mattresses in 72 × 80 in

We may earn a commission when you buy through some of these links. It doesn't change which mattresses we list.

Top pick
RVMattress.com Signature Hybrid

RVMattress.comSignature Hybrid

  • Hybrid
  • 13.25 in thick
  • Soft / Medium / Firm

Sleep Foundation: Best Mattress Overall Read review

$1,865RV King - 72x80 · list priceSee price
Best value
Mattress Insider The Sedona

Mattress InsiderThe Sedona

  • All-foam
  • 5.5 in thick
  • Firm
$40372" x 80" · list priceSee price
Reviewers' favorite
RVMattress.com Aurora Luxe Cooling

RVMattress.comAurora Luxe Cooling

  • Hybrid
  • 13.25 in thick
  • Soft / Medium / Firm

Sleep Foundation: Best Mattress for Temperature Regulation Read review

$2,465RV King - 72x80 · list priceSee price
Best memory foam
Mattress Insider Elation Gel Foam

Mattress InsiderElation Gel Foam

  • Memory foam
  • 6 in thick
  • cushion firm
$65972" x 80" · list priceSee price
Best hybrid
RVMattress.com CopperFlex RV Hybrid

RVMattress.comCopperFlex RV Hybrid

  • Hybrid
  • 10 in thick
  • Medium-Firm
$1,065RV King 72x80 · list priceSee price
Best all-foam
RVMattress.com Plank Firm

RVMattress.comPlank Firm

  • All-foam
  • 10 in thick
  • Firm / Extra Firm

Mattress Clarity: Best RV Mattress for Heavy People Read review

$1,532RV King - 72x80 · list priceSee price
Reviewer pick

HelixHelix Midnight

  • Hybrid
  • 11.5 in thick
  • Medium Feel

Sleep Foundation: Best Mattress for Side Sleepers Read review

$1,489RV King · list priceSee price
Reviewer pick
Mattress Insider Park Meadow Encased Coil II

Mattress InsiderPark Meadow Encased Coil II

  • Hybrid
  • 8 in thick
  • cushion-firm

Sleep Foundation: Best Mattress for Pressure Relief Read review

$84972" x 80" · list priceSee price

Bunk mattresses in 48 × 84 in

Some bunks have a rounded corner, so trace yours before a custom cut. A thicker bunk mattress takes headroom from the bunk above.

Custom size
Mattress Insider Park Meadow Encased Coil II

Mattress InsiderPark Meadow Encased Coil II

  • Hybrid
  • 8 in thick
  • cushion-firm

Sleep Foundation: Best Mattress for Pressure Relief Read review

Made to 48 × 84 inGet a quote

Bed sizes by year

YearMain bedBunksOther bedsSource
202072 × 80 in King––2020 Forest River FR3 brochure
202172 × 80 in King–Cab over 48 × 84 in2021 Forest River FR3 brochure
202172 × 80 in King––Forest River spec sheet
202372 × 80 in King––2023 Forest River Fr3 brochure
2024–48 × 84 in–Forest River spec sheet

Years not listed weren't published.

The 34DS floorplan

Forest River FR3 34DS floorplan, 2024

Forest River's 2024 34DS floorplan.

Is this your 34DS?

Check the year and length against your RV before you order.

YearModelLengthSleeps
2019FR3 Ford 34DS35' 11"–
2021FR3 Ford 34DS35' 11"–
2022FR3 Ford 34DS35' 11"–
2023FR3 Ford 34DS35' 11"–
2024FR3 34DS35' 11"–
2025FR3 34DS35' 11"–
2026FR3 34DS35' 11"–

Other FR3 mattress sizes

Sources

  1. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20240909214829/https://forestriverinc.com/rvs/fr3/34DS/8547
  2. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20240909214829/https://forestriverinc.com/rvs/ImageHandler/257826/2024_FR3
  3. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20250809053405/https://forestriverinc.com/rvs/fr3/34DS/10198
  4. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20260521112352/https://www.forestriverinc.com/rvs/fr3/34DS/11935
  5. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20190621074424/http://www.forestriverinc.com:80/rvs/class-a-motorhomes/fr3/34DS/4719
  6. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20210519021245/https://www.forestriverinc.com/rvs/class-a-motorhomes/fr3/34DS/4719
  7. recreationalvehicles.info: https://recreationalvehicles.info/2021-forest-river-fr3/2021-forest-river-fr3-brochure-page-002.jpg
  8. recreationalvehicles.info: https://recreationalvehicles.info/2021-forest-river-fr3/2021-forest-river-fr3-brochure-page-004.jpg
  9. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20220129011039/https://forestriverinc.com/rvs/class-a-motorhomes/fr3/34DS/4719
  10. Forest River (forestriverinc.com), archived copy: https://web.archive.org/web/20230324145417/https://forestriverinc.com/rvs/class-a-motorhomes/fr3/34DS/6590

Questions

What size mattress is in the Forest River FR3 34DS?

The main bed is 72 × 80 in (2023 Forest River Fr3 brochure, 2023).

What size are the Forest River FR3 34DS bunk mattresses?

48 × 84 in (Forest River spec sheet, 2024).