Attic Stairs Dimensions Calculator
Find the Attic Ladder Size That Fits Your Opening
Enter your rough opening and ceiling height below, and South Charlotte Services (704) 442-7019 will tell you which standard attic ladder sizes actually fit, no guesswork, no wrong-size orders.
Enter Your Measurements
Measure the rough opening in your ceiling (the framed hole, not just the ladder cover) and your floor-to-ceiling height. We’ll tell you which standard ladder sizes fit as-is.
Standard Attic Ladder Sizes at a Glance
If you’d rather skip the calculator, here are the common rough opening sizes most folding attic ladders are built around.
| Model Type | Rough Opening | Best For |
|---|---|---|
| Compact | 22.5″ x 47″ | Tight hallways or closets |
| Standard | 22.5″ x 54″ | Most homes, 24″ on-center joists |
| Wide-Body | 25″ x 54″ | Extra room for totes and boxes |
| Heavy-Duty | 30″ x 54″ | Frequent use, bulkier storage |
| Heavy-Duty Extra Long | 30″ x 60″ | Largest common size, easiest access |
Sizes shown are common industry rough openings, cross-referenced against Werner’s official attic ladder sizing guide. Most ladders are built for a floor-to-ceiling height of roughly 92″ to 123″ (7’8″ to 10’3″); taller or shorter spaces need a specific model.
Why Rough Opening Size Actually Matters
Attic ladders are built to a specific rough opening because the folding mechanism needs an exact amount of room to unfold and lock safely. An opening that’s too small means the ladder won’t fit at all. An opening that’s the wrong shape, or doesn’t line up with your ceiling joists, usually means cutting and reinforcing the framing with a structural header before any ladder goes in, not just a bigger box.
Ceiling height matters just as much as the opening. Every ladder has a rated height range, and a unit that’s too short for your ceiling will land at too steep an angle to be safe, while one that’s too long has to be trimmed to fit properly.
Attic Stairs Installation Pricing
Every job is scoped on site, but here’s the real range depending on what your opening needs.
| Job Type | Price Range |
|---|---|
| Labor only (you supply the stairs) | $350-$900+ |
| Full service (we supply the ladder) | $700-$1,000 |
| New rough opening + structural header | $1,000-$1,500 |
| Ladder relocation | $1,000-$1,500 |
| Weather stripping upgrade (add-on) | $75-$150 |
Every installation carries the Lifetime No-Fall Warranty on Workmanship, regardless of tier.
Real Installations, Not Stock Photos
Watch: Real Attic Ladder Installations in Charlotte NC
Six real project clips recorded on Charlotte NC job sites by Yuri Kalyuzhnaya and John Clay.
Attic Ladder Relocation
A unit installed too close to the wall, relocated with a full structural reframe.
Pull-Down Attic Stairs Installation
Structural double header, rough opening framed to spec, unit set level and secured.
Attic Stairs Project
Builder-grade framing, structural header, and a clean trim finish.
Attic Ladder Structural Framing
Precision rough opening framing and structural header installation, shown in full detail.
Full Attic Stairs Installation
Complete installation from structural assessment to final trim and weather stripping.
Fixing Attic Stairs Joist
Stairs were hitting the wall on every use. Reframed 30 inches further with a new structural header.
What Attic Stairs Customers Say
“I could not be happier with my experience. From the first call with John to the walk through with Yuiry. I had a new attic access panel and ladder installed. We had to extend the attic platform, move an air vent, and change the light fixture.”
“Thank you to South Charlotte Services for helping install my new attic ladder. I will definitely be using them for future projects. Professional, honest and friendly.”
“Reliable, friendly and honest. I’ve used them twice, happily.”
Areas We Serve
South Charlotte Services installs and repairs attic stairs throughout Charlotte, Matthews, Ballantyne, Waxhaw, Indian Trail, Pineville, Mint Hill, and Myers Park.
Frequently Asked Questions
Can I install attic stairs myself?
Yes, if your rough opening already matches a standard ladder size and your joists don’t need modification. Professional installation adds a structural check, a level, properly sealed fit, and the Lifetime No-Fall Warranty on Workmanship.
What’s the minimum attic opening size you can work with?
Compact and telescoping ladders can fit openings as small as 18″ x 24″. Anything smaller, or an oddly shaped opening, usually means a custom solution rather than an off-the-shelf ladder.
What if my opening doesn’t match a standard size?
It’s common in older homes. We can either frame a new rough opening to fit a standard ladder, which is usually the more cost-effective route, or source a custom unit for an unusual space. Run the calculator above for a starting recommendation, then we confirm on site.
How soon can I get an installation?
Most attic stair installations in Charlotte and nearby areas are scheduled within 1-3 days, with same-day service available on request.
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325+ five-star Google reviews · 4.9 rating · southcharlotteservices.org · Matthews, NC 28105
Our Commitment to Your Safety & Satisfaction
325+ five-star Google reviews and the Lifetime No-Fall Warranty on Workmanship on every attic stairs install, every time.