2026 Forest River LaCrosse 3450FB vs 3510DB
Search 4,495 floorplans from 35 manufacturers, then put your favorites side by side.
EXAMPLE COMPARISON Sample RVs and schematic floorplans illustrate the tool. Add your own RVs with manufacturer specs and floorplan images.
Key differences
Both are 2026 Travel trailer models from the Forest River LaCrosse line. Here's how they differ, from manufacturer specifications.
- The 3510DB is 2″ longer: 39′ vs 38′ 10″.
- The 3450FB is 635 lb lighter unloaded: 9,118 vs 9,753 lb.
- The 3450FB lists 580 lb more cargo capacity: 2,162 vs 1,582 lb.
- The 3450FB has a 55 lb lighter hitch weight: 1,080 vs 1,135 lb.
- The 3510DB has 4 slide-outs; the 3450FB has 3.
Swipe sideways to compare all your RVs →
YOUR SHORTLIST
Floorplan
PRICING
Manufacturer price (USD)
Not verified
Not verified
Lowest tracked dealer price (USD)
No recently verified dealer price
No recently verified dealer price
Est. monthly payment (USD)
No verified price to estimate from
No verified price to estimate from
DIMENSIONS & WEIGHTS
Exterior length
38′ 10″
39′ 0″
Exterior width
8′ 0″
8′ 0″
Exterior height
11′ 1″
11′ 1″
Shipping / unloaded weight
9,118 lb
9,753 lb
GVWR
—
—
Listed cargo capacity
2,162 lb
1,582 lb
Listed hitch weight
1,080 lb
1,135 lb
LIVING & SLEEPING
Sleeping capacity
—
—
Slide-outs
3
4
Main bed
Not verified
Not verified
Bunk beds
Not verified
Not verified
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
Not verified
TANKS & EVERYDAY FEATURES
Fresh water
42 gal
42 gal
Gray water
68 gal
102 gal
Black water
34 gal
68 gal
Awning length
19′ 0″ & 9′ 6″
10′ 0″ & 10′ 0″
Shore power / electrical service
Not verified
Not verified
Solar equipment
Not verified
Not verified
Outdoor kitchen
Not verified
Not verified
Washer/dryer prep
Not verified
Not verified
Microwave
Not verified
Not verified
Cooktop
Not verified
Not verified
Air conditioning
Not verified
Not verified
Electric fireplace
Not verified
Not verified
Backup camera
Not verified
Not verified
Propane tanks
—
—
Tire size
Not verified
Not verified
SOURCES & VERIFICATION
Weight basis
Manufacturer unloaded vehicle weight
Manufacturer unloaded vehicle weight
Source checked
2026-10-28 Manufacturer ↗
2026-10-28 Manufacturer ↗
Which RVs are on your shortlist?
Choose from 4,495 RVs by Forest River, Coachmen, Jayco, Keystone and 31 other manufacturers. Add up to six to see their floorplans and specifications together.
Manufacturer floorplan images © their respective manufacturers. Specs checked October 19, 2026; exact-unit labels and production options may differ. “Not verified” or a dash means we have no confirmed value. “Not listed” means the applicable manufacturer equipment was checked but does not mention the feature; it does not mean “No.” “Conflicting data” means manufacturer entries disagree. “Optional” equipment is available but is not confirmed as standard. Camera prep does not confirm an installed camera. Weights are kept separate: unloaded weight, GVWR, cargo capacity, and hitch weight. Confirm every specification for the exact model year and configuration with the manufacturer. This tool does not establish towing compatibility.
The right layout changes everything.
Compare the 2027 Coleman 13B vs 13R →
Compare the space you’ll live in, then dig into the details.
Click any floorplan for a closer look.
Make room for the details
Use the same model year and weight definitions when comparing. An unknown specification stays unknown.
Reader discussion
Share real experiences, ask questions and compare the details. Google sign-in confirms an account, not RV ownership. Every comment is reviewed before publication.
Your submissions