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What Size Blinds Do I Need? Standard vs Custom Explained

What Size Blinds Do I Need? Standard vs Custom Explained

TLDR; Stock blinds come in a handful of widths; windows come in thousands. The mismatch shows up as light gaps, rattly fit and early mechanism wear. Custom sizing builds the blind to your measured opening to the sixteenth of an inch - which is most of why custom blinds last and look built-in.

Stand in a big-box blind aisle and the sizing chart looks reassuring: plenty of widths, something close to your window. Close is the problem. Windows are built by hand, one at a time, and close fits are what fill North Georgia homes with blinds that leak daylight down both edges and rattle when the HVAC kicks on. Here is the plain-language version of how blind sizing actually works.

Why Stock Can Only Get Close

Stock blinds exist in a short ladder of widths because warehouses demand it. Your window's true opening - measured at the top, middle and bottom, which disagree with each other more often than not - almost never lands on a rung. The store trim-down service helps the width and does nothing for an opening that is a quarter inch wider at the sill than the head, which is ordinary in homes all over Dalton, and practically guaranteed in anything built before the nineties.

What the Gap Actually Costs

  • Light. Uneven daylight slots down each side, which blackout fabric cannot fix because the leak is around the blind, not through it.
  • Looks. A visibly crooked or undersized blind reads from across the room - and from the street.
  • Lifespan. A blind that touches the frame binds a little on every operation, and that daily friction is what strips tilt gears and frays cords years early, the failure pattern from our lifespan guide.

What Custom Actually Means

Custom is not a fancier slat - it is a blind manufactured to your opening's measured numbers, to the sixteenth of an inch, with the workroom taking the correct operating clearance off the true narrowest width. Three width measurements, three heights, frame depth, squareness check: the process in our measuring guide. The result hangs straight in an imperfect opening because it was built for that opening's imperfections.

When Stock Is Honestly Fine

A garage window, a rental you are leaving next year, a utility room nobody sees - if a stock size genuinely matches and the room does not matter, stock serves. The mistake is furnishing the rooms you live in with close-enough, then paying again when the gaps and the wear deliver their verdict.

The Fit Is Our Problem, Not Yours

With custom blinds from Love Is Blinds, sizing stops being your homework: Ben and Ashley laser-measure every opening at the free consultation, the order is built to those numbers, and the same two people install - so if anything fit wrong, it would be ours to make right. Book at the contact page or call (706) 406-6653.

Frequently Asked Questions

What sizes do stock blinds come in?
A short ladder of common widths, trimmed down in-store at best. Your window was framed by hand on a job site, so the odds it matches a stock width exactly are poor - the difference becomes gaps.
How much gap is normal for a blind?
A properly built inside-mount blind clears the frame by a small, even margin on each side. Stock blinds forced into the wrong opening commonly show uneven daylight slots - that is fit failure, not normal.
Are custom blinds worth it for standard-looking windows?
Usually, because standard-looking is not standard-measuring. Even new builds vary opening to opening. Custom also buys better components, which is the other half of the lifespan difference.
Do I measure for custom blinds myself?
You can - our measuring guide walks it - but with Love Is Blinds the laser measure is part of the free consultation, and the fit becomes our responsibility instead of yours.

Have windows like the ones in this article?

Book your free in-home consultation. We'll bring the samples, measure everything, and give you honest guidance - no pressure, ever.