The Corner XL — Wide Modular Corner Base (90″ + 50″)

The Corner XL is the wide modular corner unit from Perfect BookShelf that extends your shelving seamlessly around a corner and connects two runs into a larger L-shaped or wrap-around layout. Built from furniture-grade plywood with solid hardwood detailing, it turns an overlooked angle into functional, intentional storage — and because it's fully compatible with every modular component in the line, your shelving can grow and reconfigure as your space evolves. It shares the low 26¼″ horizontal profile and 10″ depth of the Foundation units, assembles with no tools, and comes in a 90″ + 50″ corner configuration for spanning wider walls and open-plan corners.

Highlights

• Wraps larger corners — connects longer horizontal runs into L-shaped and wrap-around layouts, ideal for bigger walls and open-plan spaces
• Wider than The Corner — a 90″ leg (vs. 70″) for more storage and reach along the longer wall
• Fully modular and compatible — works with every component in the Perfect BookShelf line, so you can expand and reconfigure over time
• Furniture-grade plywood with solid hardwood detailing — clean lines and precise, architectural proportions
• Tool-free assembly — sets up with no tools or hardware, so it's easy to build, move, and adapt
• Natural finish in three options: Maple, White Oak, and Walnut
• Low horizontal profile — 26¼″ tall and 10″ deep, matching the Foundation line for a continuous look around the room

Specifications

• Configuration: 90″ W + 50″ W legs
• Height: 26¼″
• Depth: 10″
• Orientation: Horizontal corner (low-profile)
• Materials: Furniture-grade plywood with solid hardwood detailing
• Finish: Natural — available in Maple, White Oak, or Walnut
• Compatibility: Connects with all Perfect BookShelf modular components
• Assembly: Tool-free, no hardware required
• Weight capacity:  30lbs for 50", and 60lbs for 90" side per shelf and 180lbs total
• Freestanding
• Price: starting at $1,535.00

Frequently asked

• What does the Corner XL do? It connects two shelving runs around a corner, turning a larger L-shaped or wrap-around wall into continuous, functional storage.
• How is it different from The Corner? Same corner design and 26¼″ × 10″ profile, but with a longer 90″ leg instead of 70″ — choose the XL for wider walls and open-plan corners, The Corner for more compact spaces.
• Is it compatible with the Foundation and Tower units? Yes — it's fully compatible with every modular component in the line and shares the 26¼″ height and 10″ depth of the Foundation units.
• What are the leg dimensions? One 90″ leg and one 50″ leg, meeting at the corner.
• Does it need tools to assemble? No — it assembles without any tools or hardware.