2026 Brinkley Model Z3100

The 3100 was the first floorplan Brinkley released, and it remains the line’s archetypal rear-living plan. Dual opposing slides open a bright, combined living and kitchen space: a 62-inch theater seat and a 72-inch tri-fold sofa run along the rear wall facing a televator and an electric fireplace, while a center kitchen island anchors the galley. The front holds a private bedroom with a king bed slide (queen optional). It is the layout most people picture when they think of the Model Z.

It stays in light-to-mid territory. RVUSA lists a published 15,495-pound GVWR against a 12,276-pound dry weight, leaving a 3,219-pound payload and a 2,298-pound dry pin — comfortable for a properly rated three-quarter-ton truck. The full Brinkley build carries through on the monotube triple-powder-coated chassis with 7,000-pound tandem axles, a Helux king pin and brass plumbing, with a 16-cubic-foot 12-volt refrigerator, 370-watt solar and the two-air-conditioner package standard.

At an MSRP of $121,244 it sits in the heart of the line, and it is one of the most cross-shopped Model Z floorplans. For a couple who wants the signature rear-living layout, a center island and a king bedroom in a 35-foot coach that still tows in the low-12,000-pound range, the 3100 is the Model Z that defined the brand.

The Brinkley Model Z is a mid-size luxury fifth wheel and one of the most talked-about new entrants in the segment. The line runs to twelve floorplans for 2026; the eight highest-demand layouts are profiled here in full, and the remaining four are catalogued on the line hub. The 3100 on this page is highlighted; each other profiled plan links to its own page.

This floorplan carries its water comfortably. A full 75-gallon fresh tank is roughly 19% of the 3,219-pound cargo capacity, leaving the 3100 with a usable gear budget even when you tow full.

The published dry pin weight of 2,298 pounds is 19% of this floorplan’s 12,276-pound dry weight. Fifth-wheel pin weight rides in the bed of the truck, so it comes off payload rather than off tow rating — and it rises with the trailer as you load it, not in proportion to what you put over the axles.

Nothing above changes the ceiling. Loaded to its 15,495-pound GVWR the 3100 is towing 3,219 pounds more than its 12,276-pound dry figure, and that is the number your vehicle has to be rated for — not the brochure weight.

Tank balance is generous here: 75 gallons of fresh against 90 grey and 45 black, so waste capacity keeps pace with supply and the fresh tank is the constraint that ends a dry stay.

Ranked by GVWR, the 3100 sits 5 of 11 in the Model Z line: 15,495 pounds against a line that runs from 13,995 to 17,695 pounds. That position is the useful thing to know, because the plans immediately either side of it are the real alternatives.

Either side of it in the same line: Model Z 2900 is 500 pounds lighter at 14,995 lb GVWR; and Model Z 3110 matches it exactly at 15,495 lb GVWR.

1 other Model Z plan shares this floorplan’s 15,495 lb GVWR, so the ranking above separates plans that tow to the same ceiling. On a shared chassis the figure that actually differs between them is cargo capacity and where the weight sits, not the rating.

Against the 3100: the Wildcat 37BEST is 3 lb heavier and 9 ft longer and sleeps 3 more; the Sandpiper 3710HBFB is 5 lb heavier and 8 ft longer; the Sierra 3710HBFB is 5 lb heavier and 8 ft longer. Those are differences in the published numbers only — what they cost, how they are built and how they live are separate questions each of those pages answers on its own terms.

Those are the nearest fifth wheels from other lines by weight — one per line, picked by proximity on that figure and nothing else. They are listed so the same tow vehicle can be checked against real alternatives, not because they are equivalent inside; layout, build and price diverge sharply across that group.

For scale, the Model Z floorplans profiled here run 10,691 to 14,859 pounds dry and 30 to 42 feet of exterior length across 11 plans. Where a floorplan falls in that spread usually says more about which vehicle can tow it, and which site it fits, than the layout name does.

Every profiled floorplan in this line, with the full weight table, is on the Model Z line hub.

This catalog tracks 18 specification fields per floorplan. Named sources publish 17 of them for the 3100. The rest are not shown, because the alternative is reading a figure across from a sibling floorplan or from what the segment usually does — and a number nobody published is worth less than an admitted gap.

Not published for this floorplan: interior height, tire size (a tire description is published, a size is not). If you find one of these in a manufacturer document for this plan, it belongs on this page.

The completeness figure at the foot of this page (98%) measures the same thing on the full field set: it is a measurement of how much this floorplan’s manufacturer publishes, not of how much research went into the page.

How every figure here was sourced and checked is set out on the methodology page.