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Thor Motor Coach Siesta 24ST

Class Cbuilt 2015–20Mixed build tierCommon on the used market
WHAT ONE COSTS
—price not published

The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.

THE SPECS
Length25.8 ft
Height (incl. A/C)10.8 ft
Width7.5 ft
Interior height6.7 ft
GVWR11,030 lb
Dry weightnot published
Sleeps5
Fresh water42 gal
Grey water24 gal
Black water22 gal
Awning15 ft
Fuel26.4 gal
Engine / chassisMercedes 3.0L V6 BlueTEC 188 HP on Sprinter 3500

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

WHERE PEOPLE SLEEP
  • 1× Rear bed(Permanent)—
  • 1× Cab-over bunk(Permanent)—
  • 1× Dinette converts(Convertible)—
HOW IT'S BUILT — 3/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyOpen

Thor Motor Coach (Mixed tier): Thor Industries

YEAR BY YEAR — WHAT CHANGED
YEARSGVWRDRYMSRP
2015–1611,030 lb——
2017–2011,030 lb——
  • 2015Introduced at 25 ft 9 in
  • 2017Length restated to 26 ft
  • 2020Length restated to 25 ft 10 in; awning grew from 11 ft to 15 ft; storage up to 66.5 cu ft
FINDING ONE

Common — usually several for sale within a day’s drive. Why: Thor Motor Coach is a volume manufacturer. Estimated from build volume and production span — not a count of live listings.

THE READ

The storage king of the line - 62 to 66 cu ft of exterior compartment, roughly double most Siestas. Ran the longest of any Siesta floorplan.

OTHER SIESTA FLOORPLANS
24MB · 11,030 lb · sleeps 524SA · 11,030 lb · sleeps 524SB · 11,030 lb · sleeps 524SJ · 11,030 lb · sleeps 524SK · 11,030 lb · sleeps 524SR · 11,030 lb · sleeps 524SS · 11,030 lb · sleeps 524SV · 11,030 lb · sleeps 5the whole line →
Is the 24ST 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 and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

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