# Entegra Coach Cornerstone 45B

> Bath and a half, rear bath

Cornerstone 45B is a class a floor plan by Entegra Coach.

## Specs (2026 model year)

| Spec | Value |
| --- | --- |
| Length | 44 ft 11 in |
| Sleeps | 4 |
| Slide-outs | 4 |
| GVWR | 54,000 lbs |

## Model years

2026, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015. Year-specific specs: `https://rvenvy.com/class-a-motorhomes/entegra-coach/cornerstone/45b?year={year}`

## Overview

The Entegra Coach Cornerstone 45B is built around a bath-and-a-half floor plan with a rear full bath, but the powertrain and systems list is what really sets it apart. The Aqua-Hot 600D hydronic system delivers in-floor heat throughout the coach while also preheating the engine, and the 12,500W Onan diesel generator rides on a powered slide-out tray with automatic start for stress-free boondocking. A Victron 3,000W pure sine wave inverter, four L16 AGM batteries, and dual 200W solar panels round out a serious off-grid package. Owners consistently praise the Cornerstone 45B's ride quality and quiet cabin, crediting the Reyco Granning independent front suspension and custom-tuned Koni shocks, and the general sentiment from those who've bought one is straightforward: they'd do it again.

## Floor plan tags

bath and a half, rear bath

## Inventory

14 units currently for sale priced $269,995 to $499,995: https://rvenvy.com/class-a-motorhomes/entegra-coach/cornerstone/45b/inventory

Floor plan diagram: https://images.rvenvy.com/d0dedbc3fc3bf3712e5d799e8b05e1ca3565d8409cc212d90634b03c42320e09/1024.webp

Canonical page: https://rvenvy.com/class-a-motorhomes/entegra-coach/cornerstone/45b