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Ultimate Bay Window

Marvin Signature™ Ultimate Bay windows are a series of interconnected windows that extend outward from a room at various angles, allowing light and views from all directions. Some have a larger operating or stationary window surrounded by smaller windows. Ultimate Bay windows can make space indoors for a cozy nook or window seat, or they can maximize a scenic view to serve as the focal point of a room

Ultimate Bay Wood Features

Ultimate Bay Features

  • The Ultimate Bay Window offers a unique combination of Double Hung or Casement windows to suit any design.
  • Three or more windows are connected at chosen angles to add space and light to a room, including window seats and walkout designs.
  • Performance-grade washing mode allows easy access to both sides of the glass from the indoors.
Marvin design options examples


Marvin offers an extensive array of design options to customize your windows to fit perfectly with your home.

Tape measure on top of project blueprints.
Tape measure on top of project blueprints.


Are you in the planning stages of a project, or ready to start? We have local Marvin experts in your area who can help you explore your options. We’d love to hear about your project! Connect with us for a custom consultation today.

WGallery - Marvin Canada


Explore our photo gallery of Marvin windows and doors to get a sense of the possibilities.

WProjects - Marvin - Canada


Discover how purposeful design and exceptional building materials can help bring your unique vision to life.

WForest treehouse interior Marvin Canada Project


Welcome to the Inspired by Marvin blog. Here we feature stunning projects and trends we’re loving lately.