2026 East to West Alta1900MMK

The Alta 1900MMK leaves East to West's factory at 5,463 lbs dry with 2,147 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 48-gallon fresh tank spends 398 lbs of the 2,147 lbs before anything else goes in.

Tongue weight is 610 lbs, 11% of the dry weight as published; it rises as the trailer is loaded and counts against the tow vehicle’s tongue-weight and payload limits (tongue weight by size).

Off hookups: 60 gallons of grey and black capacity against 48 gallons of fresh water, so fresh water runs out first (tank sizes by length).

Against the rest of the Alta roster this is the 3rd of 17 floorplans by dry weight, in a line that runs from 3,998 lbs to 10,334 lbs. It sits in the lighter third of the line.

Plan the tow on loaded weight, not the 5,463 lbs dry figure: half the published cargo capacity brings this plan to about 6,537 lbs. East to West publishes no loaded rating for this line, so the ceiling is the one on the trailer’s own weight label (how to read trailer weights).

East to West’s line listing and this floorplan’s own factory page agree on all 4 shared figures. No GVWR is published for this line, so dry plus cargo has no rating to check against. A missing row means East to West does not publish that figure (how figures are verified).

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. 1900MMK is a Alta designation and this site does not decode it into a layout claim.

How the 1900MMK differs from the other sixteen Alta floorplans. Most distinctive first. Sibling pages may cover other model years than this one (2026). How these ranks are worked out.

• Dry weight, 5,463 lb: third-lightest of seventeen, between the 1800MBH-LE (4,284 lb) and the 2600KRB (6,161 lb).
• Tongue weight, 610 lb: third-lightest of seventeen, between the 1800MBH-LE (495 lb) and the 2600KRB (660 lb).
• Length, 25 ft: third-shortest of seventeen, between the 1800MBH-LE (24 ft) and the 2400KTH (28 ft 1 in).
• Fresh tank, 48 gal: third-smallest of seventeen, between the 1600MRB-LE and 1800MBH-LE (46 gal) and the 2375KRK, 2410KML and seven others (53 gal).
• Tongue weight as a share of dry weight, 11.2%: fifth-smallest of seventeen, between the 2650KRD (11.1%) and the 2850KRL (11.4%).
• Grey tank, 30 gal: smallest of seventeen, level with the 1600MRB-LE, 1800MBH-LE and 2410KML; next are the 2375KRK, 2400KTH and eight others (60 gal).
• Cargo capacity, 2,147 lb: eighth-largest of seventeen, between the 3010KBH (1,977 lb) and the 3175RK (2,247 lb).
• Exterior height, 11 ft 2 in: shared with the 2375KRK, 2475KBH and five others; of seventeen, two lower and seven taller, nearest the 1800MBH-LE (10 ft 7 in) and the 2410KML (11 ft 3 in).

Next to the 1800MBH-LE, the nearest lighter floorplan by dry weight, the 1900MMK is 1,179 lb heavier by dry weight, has 836 lb more cargo capacity, has a tongue weight 115 lb heavier, is 1 ft longer, stands 7 in taller and has a fresh tank 2 gal larger; the two publish the same grey tank and black tank.

Next to the 2600KRB, the nearest heavier floorplan by dry weight, the 1900MMK is 698 lb lighter by dry weight, has 1,152 lb less cargo capacity, has a tongue weight 50 lb lighter, is 5 ft 5 in shorter, has a fresh tank 5 gal smaller and has a grey tank 30 gal smaller; the two publish the same exterior height and black tank.

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 single-axle LE models, 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 48-gallon fresh tank is about 398 lb of water, 19% of the 1900MMK’s 2,147 lb cargo capacity, leaving 1,749 lb. Across 17 Alta floorplans the water share runs 13% to 37%, and 12 give up more than this one. Nearest on that share: Alta 2850KRL at 16% and Alta 2870KTH at 19%.