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Forest River Salem Hemisphere 356QB

Fifth wheelbuilt 2020– (in production)Mixed build tierCommon on the used market
WHAT ONE COSTS
$89,800MSRP today

Still in production. A used 2023 would run roughly $53,000.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~12,524 lbestimated as towed, for 2 people

dry weight 11,249 lb + fresh water (57 gal, full) 475 lb + propane + battery 200 lb + gear for 2 600 lb. Brochure dry weight omits water, propane, batteries and your gear; this estimate doesn't.

You want a tow rating around13,920 lb (10% margin)
GVWR (the sticker maximum)13,790 lb
Tongue weight, loaded~1,993 lb (16%)
Cargo capacity2,541 lb
WHICH TOW VEHICLES IT FITS: 20 OF 95

Judged the way the app judges: estimated loaded weight against each vehicle's rating less a 10% margin, per model year, because the 356QB's published weights held steady. Fifth wheels also need a pickup bed and are held to the fifth-wheel rating where published.

VEHICLETOW RATINGVERDICT
Chevrolet Silverado / GMC Sierra 2500HD (Duramax, max tow) '24-2622,500 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-2318,510 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-1918,100 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-2636,000 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '11-1923,300 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '21-2314,000 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, gooseneck) '20-2222,800 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-1918,000 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel) '11-1616,600 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 HO diesel, gooseneck) '23-2623,000 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '17-1932,500 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '20-2237,000 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '11-1621,600 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 HO diesel DRW, gooseneck) '23-2638,000 lbfits, loaded, with 10% margin
Ford F-450 Super Duty (6.7 HO diesel DRW, gooseneck) '23-2640,000 lbfits, loaded, with 10% margin
Ram 2500 (6.7 Cummins HO) '19-2620,000 lbfits, loaded, with 10% margin
Ram 2500 (6.7 Cummins) '11-1817,980 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins DRW, gooseneck) '13-1831,210 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-2636,610 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-2437,090 lbfits, loaded, with 10% margin
The 75it doesn't fit

These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →

THE SPECS
Length43.0 ft
Height (incl. A/C)13.2 ft
Width8.0 ft
GVWR13,790 lb
Dry weight11,249 lb
Dry tongue weight1,790 lb
Cargo capacity2,541 lb
Sleeps10
Axles2
Fresh water57 gal
Grey water90 gal
Black water60 gal
Air conditioning18,000 BTU
Awning21 ft

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP
  • 1× Front bedroom queen(Permanent)60×80
  • 4× Rear quad bunks(Permanent)—
  • 2× Sofa and dinette(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Forest River (Mixed tier): Salem

YEAR BY YEAR: WHAT CHANGED
  • 2020Introduced under the Hemisphere nameplate
FINDING ONE

Common: usually several for sale within a day’s drive. Why: Forest River is a volume manufacturer; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Rear quad-bunk family fifth wheel; the volume seller of the line.

OTHER SALEM HEMISPHERE FLOORPLANS
261FKRB · 9,820 lb · sleeps 2265BSRB · 9,740 lb · sleeps 2270FKS · 9,840 lb · sleeps 4271RL · 9,985 lb · sleeps 6273RL · 10,010 lb · sleeps 6286RL · 12,071 lb · sleeps 4291RL · 12,130 lb · sleeps 4295BH · 12,185 lb · sleeps 10308RL · 11,385 lb · sleeps 6310BHI · 11,445 lb · sleeps 8314BUD · 11,510 lb · sleeps 10320VIEW · 14,040 lb · sleeps 6321DRL · 14,025 lb · sleeps 4322VIEW · 11,700 lb · sleeps 4the whole line →
Find one for sale

Live listings for the 356QB on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

Inventory varies by site and day. Slim pickings? search the whole Salem Hemisphere line ↗

Is the 356QB your #1, or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about. Set your priorities as sliders, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.