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Travel Trailer

Keystone RV Passport SL 3310WFA

You need a space at least 40′ 11″ long.

At RV Storage Depot that’s a 10×42 space.

Length: 37′ 11″overall
Width: —not published
Height: 11′ 6″as listed

To scale: your rig in a 10×42 outdoor self parking space.

Outdoor self-park fits most trailers

Most travel trailers and smaller motorhomes do fine in a secured outdoor space. If roof seals and tires matter to you, ask about indoor valet.

Where to store it

RV Storage Depot – Great Park
Irvine, CA
Outdoor Self Parking11×42Only 2 left
Fits, tight on length. Back in slowly and confirm your exact length with the office before booking.
Reserve this 11×42 on the next page
Availability as of 2026-10-26, approximate.
RV Storage Depot – Norwalk
Norwalk, CA
Outdoor Self Parking10×42Only 1 left
Fits, tight on length. Back in slowly and confirm your exact length with the office before booking.
Reserve this 10×42 on the next page
Other ways to store it here
- Outdoor Valet: 10×45
Availability as of 2026-10-26, approximate.
RV Storage Depot – McClellan Park
McClellan Park, CA
Indoor valet only here.
Indoor Valet10×45Full right now
Fits comfortably. 7′ 1″ of length to spare.
Height isn't a limit for indoor storage here.
Join the waitlist · (916) 569-8520
Availability as of 2026-10-26, approximate.
RV Storage Depot – Altamonte Springs
Altamonte Springs, FL
Outdoor Self Parking11×45Available
Fits comfortably. 7′ 1″ of length to spare.
Reserve this 11×45 on the next page
Other ways to store it here
- Indoor Valet: 10×45
Availability as of 2026-10-26, approximate.

Reserve opens RV Storage Depot’s checkout: no call needed.

Keep reading

Space guideWhat fits in a 10×42?Every boat and RV in our guide that parks comfortably in this size.GuideIndoor, outdoor, or valet for an RVRoof AC height, UV on seals and tires, and what valet saves you.How-toMeasure your RV the way we doThree numbers, one tape, five minutes. Bring them when you book.

How we sized it

Length needed: 37′ 11″ (manufacturer’s overall length) + 3′ to back in and close up = 40′ 11″.
Width: not published by the manufacturer. Width never rules out a space; up to 8′ 6″ fits.
Indoor: height + 1′ must clear the indoor door listed for the space.
Specs: Keystone RV published specifications, checked 2026-10-19.
Vehicle Storage Size Guide methodology
Last updated 2026-10-21.

Want to know if we open near you?

Leave your ZIP code and email. If RV Storage Depot opens a storage location near you, we'll send you one email to say so. We can't promise that will happen, and we won't email you about anything else.