2026 East to West Alta1600MRB-LE

The Alta 1600MRB-LE leaves East to West's factory at 3,998 lbs dry with 1,672 lbs of cargo capacity. East to West publishes no GVWR for this line, so the loaded rating is not quoted on this page and is not computed from the other two figures. What the cargo number covers is defined by the factory: fresh water, gear, food, batteries and every dealer-installed accessory come out of it. Fresh water is 8.3 lb per gallon, so filling the 46-gallon fresh tank spends 382 lbs of the 1,672 lbs before anything else goes in.

Dry tongue weight is 470 lbs, or 12% of the dry weight. Ten to fifteen percent is the conventional band for a bumper-pull trailer, and this plan sits inside it as published. Tongue weight is not fixed: it moves with how the trailer is loaded, and weight added ahead of the axles raises it. A weight-distribution hitch is the normal fitment at this tongue load, and the tow vehicle's tongue-weight limit is a separate number from its trailer-weight limit.

Tank capacities are 46 gallons fresh, 30 grey and 30 black, 60 gallons of waste capacity against 46 gallons of supply. The ratio is what governs how long the trailer can sit off hookups: waste capacity exceeds fresh, so the fresh tank is the binding constraint and refilling extends the stay. East to West publishes these three figures per floorplan, and they are the factory's numbers rather than a segment average.

Against the rest of the Alta roster this is the 1st of 16 floorplans by dry weight, in a line that runs from 3,998 lbs to 10,334 lbs. It is the lightest plan in the line, which makes it the one to look at first if the tow vehicle is the constraint. Comparing floorplans inside one line is more reliable than comparing across brands, because every figure here comes from the same factory channel on the same day.

A useful way to read these figures is to stop planning against the dry weight. Nobody tows a trailer at 3,998 lbs: that is the weight before water, batteries, propane, bedding, food, tools and anything the dealer bolted on. Load half the published cargo capacity and this plan is already near 4,834 lbs on the road. Because East to West publishes no loaded rating for this line, the ceiling has to come from the trailer's own weight label rather than from this page, and the comparison you make against the tow vehicle should use the loaded figure.

Every number above was captured twice from East to West and checked against itself before it was published. The line listing and the individual floorplan page are two separate factory renderings of the same trailer, and this plan's 4 shared figures agree exactly on both. There is no published GVWR on this line, so the usual arithmetic check - dry plus cargo equals the rating - has nothing to test against here. Where a figure is missing from this page it is because East to West does not publish it in this channel, not because it was hard to find - and the row says so rather than being quietly dropped.

East to West publishes no floorplan description for this plan in the channel this page is built from - only the numeric specification block. Rather than describe a layout from the floorplan code, which would be a guess dressed as a fact, this page carries what the factory publishes and says where it stops. 1600MRB-LE is a Alta designation and this site does not decode it into a layout claim.

Alta is the broadest roster East to West publishes, and the spread is the reason to read the table rather than the floorplan numbers. Sixteen floorplans run from 3,998 lb dry on the single-axle LE plans to 10,334 lb at the top, which is not one trailer class but three: a pair of LE models light enough to sit behind a mid-size SUV, ten mainstream tandem-axle trailers, and two toy haulers plus one Xtreme plan at the heavy end. Crucially all of them are bumper pull. Tongue weight runs 470 to 1,350 lb across the whole roster, and even the toy haulers -- which East to West groups separately -- load 1,165 to 1,350 lb onto a ball, not a pin. That matters because a toy hauler badge usually implies a fifth wheel and here it does not. Cargo capacity runs 1,202 to 4,717 lb.

A full 46-gallon fresh tank is about 384 lb of water, 23% of the 1600MRB-LE’s 1,672 lb cargo capacity, leaving 1,288 lb. Across 15 Alta floorplans the water share runs 13% to 37%, and 5 give up more than this one. Nearest on that share: Alta 3010KBH at 22% and Alta 2775KFK at 25%.

Closest sibling: the Alta 1800MBH-LE, nearest on the published figures. It differs on 4 of the 7 fields both publish (this plan first): length 22 ft 10 in vs 24 ft 0 in; dry weight 3,998 lb vs 4,284 lb; cargo capacity 1,672 lb vs 1,311 lb; dry hitch weight 470 lb vs 495 lb. They match on fresh tank, grey tank and black tank.

Either side of it by dry weight: Alta 1800MBH-LE is 286 lb heavier (4,284 lb dry).

All 15 Alta floorplans: Alta line hub.

Against the 1600MRB-LE: the Hideout 181BH is 7 lb lighter; the Forest River No Boundaries NB18.7 is 10 lb lighter and 1 ft shorter; the IBEX 16MKS is 15 lb heavier and 2 ft shorter.

10 of the 18 fields this catalogue tracks are published for the 1600MRB-LE. Not published: GVWR, interior height, sleeps, slide count, axle count, tire specification, refrigerator, air conditioning.

Sourcing rules: methodology.