Bay Window Support Brace

A stronger, simpler way to support bay windows — from the bottom up.

Seeking Manufacturing Partners

The Problem


Bay windows are typically supported from above, anchored to the structure overhead. Over time, that support can loosen and the window begins to sag. Other approaches support the window from below using shims — workable at install, but difficult to readjust as the window settles.

Either way, a window that drifts out of alignment can lead to structural issues, water infiltration, and windows that become hard to open or close — a problem that only gets worse with age.

The Solution


The Adjustable Support Device takes a different approach: a load-bearing brace beneath the window that can be fine-tuned at install and readjusted at any point afterward — using three key components:

Direct, load-bearing support that keeps the window aligned and operating smoothly — and stays adjustable for the lifetime of the window.

How It Works


Patent diagram showing the adjustable support brace mounted beneath a bay window, with diagonal braces extending from the wall to the underside of the window

From U.S. Patent 11,125,383 — 3D view of the support device installed beneath a bay window

Installation Detail


Side cross-section showing the brace components: horizontal segment under the window, vertical segment against the wall, and adjustable diagonal brace connecting them

Side view showing the horizontal, vertical, and adjustable diagonal segments

Key Benefits


Stronger Support

Direct load-bearing support from below — keeps the window aligned and operating smoothly.

Adjustable Fit

Pin-based locking system allows the brace to be set at different positions for various window sizes and angles.

Built to Last

Designed for the lifetime of the window — no shims to settle, nothing to retighten over time.

Easy to Readjust

Fine-tune the brace any time the window shifts — without reshimming or removing the unit.

Patent Information


This invention is protected by two U.S. patents:

U.S. Patent 10,760,323 — Granted September 1, 2020

U.S. Patent 11,125,383 — Granted September 21, 2021

Interested in This Solution?


The Adjustable Support Device is patented and currently seeking manufacturing and distribution partners.

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