Inside Mount vs. Outside Mount

Inside vs. Outside mount refers to whether the application is mounted to the window jamb (inside) or out on the window trim or wall (outside). Technically, what the terms mean to fabricators is that they need to do a deduction on the width for an inside mount to accomodate for the bracket and allow for variance in the window jamb. What this means to most designers is how nice it looks. Most designers prefer an inside mount when available (for blinds, shutters, and shades). This provides a full reveal of the window trim and shows the desired architecture of the window.

There are several things to consider when deciding upon an inside or outside mount. For a hard application like shutters, you need to consider whether an inside mount will block the "tilt in" feature of the window (if it has one). For some, blocking the tilt feature is a compromise they are willing to make. Another thing to consider is how square the window jambs are. If they are not square (true), a rectangular application may accentuate the flaw. An outside mount may cover up the flaw.

A partial inside mount may be an option with as little as a 1/4" of depth to the window jamb. This varies by application and bracket options. For blinds, one should have partial returns on the valance that will cover the exposed brackets in a partial inside mount.

If you are unsure about the inside or outside mount decision, be sure to discuss with your designer or your blinds sales person.