How to Measure Windows for Blinds, Shades and Shutters
Resource guide | 6 min read

How to Measure Windows for Blinds, Shades and Shutters

A plain guide to measuring windows for custom treatments: inside and outside mounts, depth, squareness and the obstructions that change the plan.

Why measuring matters

Custom treatments are made to your exact sizes and cannot be trimmed on site. A small error can mean a gap or a blind that will not fit.

Homeowners in Nashville often measure first for ideas, and we measure again before ordering.

We recommend a professional measurement for every custom order.

Inside mount basics

An inside mount sits within the window frame. It needs enough depth, a reasonably square opening and no obstructions such as cranks.

Measure width at the top, middle and bottom, and height at left, center and right.

We use the smallest width for the order, with small allowances.

Outside mount basics

An outside mount sits on the wall or trim and covers the whole opening, often with overlap.

It suits shallow frames and windows with obstructions, and can make a window look larger.

We plan the overlap on each side and above the frame.

Depth and clearances

Check how deep the frame is, how far the glass sits back and whether handles, cranks or locks stick out.

These details decide which products fit.

We note them on every window.

Squareness and levelness

Window frames are rarely perfectly square or level. Differences show as gaps at an edge.

We measure in several places and plan a mount that hides small differences.

We tell you if a window is unusual.

Specialty windows

Arches, angles, bays, skylights and doors need extra care and often a template.

Do not guess on these, since mistakes are costly.

We measure specialty windows on site and confirm every detail.

Our advice in one sentence

Measure each window in several places and let a professional confirm before you order anything custom.

Questions

Quick answers.

Can I measure myself?

You can for ideas, and we measure professionally before ordering.

Which mount should I choose?

Inside mounts look clean, and outside mounts cover more and suit shallow frames. We help you decide by window.

What if my window is not square?

We note it and choose a mount and size that handle it.

Free Estimate

Ready for windows that look beautiful and work all day?

Call us and describe your windows. We will visit, measure and give you a clear written estimate.

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