You're standing in a framed wall with a tape measure. The door isn't here yet. What you need is a number you can trust, and a door frame height chart that actually matches how aluminum entry doors get built. Most charts online are for interior slabs or kid growth charts. Neither helps when you're setting a header for a front door that ships from a factory.
This isn't a code document. It's a working walkthrough for builders, architects, dealers, and homeowners who need to size an opening before the unit arrives. If you want the short version: measure the rough opening, not the door, and send those numbers to the factory.
Three Heights You Must Keep Separate: Slab, Frame and Rough Opening
People mix these up constantly. They're three different numbers, and only one of them belongs on your framing plan.
Slab height is the door leaf itself. Just the panel. No frame, no threshold, no clearance. On an aluminum entry door, the slab is the part that swings.
Finished frame height is the outside edge of the frame once it's assembled. This is the unit that shows up on a truck. It includes the head jamb, the sill or threshold, and the side jambs. If you ordered a door and the factory says "frame height is a certain number of inches," that's the outside dimension of the assembly.
Rough opening height is the framed hole in the wall. It's taller than the finished frame. Always. The gap is there for shims, leveling, and whatever the threshold sits on.
Here's the trap. A "standard door frame height" figure you find online is almost never the number you frame a wall to. It's usually a nominal slab height, sometimes with trim, sometimes without. If you frame to that number, the unit won't fit. You'll be cutting a header out and redoing it, which is a bad afternoon.
A quick comparison
| What you're measuring | What it includes | Who uses it |
|---|---|---|
| Slab height | Door leaf only | Factory production, hardware layout |
| Finished frame height | Leaf plus frame, head jamb, threshold | Factory quote, shipping, installation planning |
| Rough opening height | Framed hole in the wall | Framer, GC, architect |
The rough opening is the only one you build to. The other two are what the factory builds. Keep them separate and the rest gets easier.
How to Measure Rough Opening Height for a Front Door
Measure height at three points: left side, center, right side. Take the smallest number. That's your rough opening height. If you take the largest, the door won't fit on the tight side.
Do the same for width. Left, center, right, smallest number wins. Then measure the wall depth. That's the thickness of the framed wall, from outside face to inside face. Depth matters because the frame has to sit in it, and a thick wall with a thin frame leaves you with a weird reveal.
Before you write anything down, check the floor. Is it poured? Finished? A tile floor adds height. A hardwood floor adds height. A concrete slab that's still going to get a mud bed adds height you can't see yet. The threshold sits on top of whatever the finished floor is, so the rough opening has to account for that build-up. If you measure before the floor is in, note it on the drawing.
Same goes for the exterior side. A paver patio, a poured stoop, a deck, each one changes where the threshold lands. Write it down. A buyer who measures a bare opening and forgets the floor finish will hand the factory a number that's short by an inch or more.
What to record
- Rough opening height (smallest of three)
- Rough opening width (smallest of three)
- Wall depth
- Floor finish and expected thickness
- Exterior landing height
- Wall construction type (2x4, 2x6, masonry, steel stud)
That's your checklist. It's short, but every line matters.
Reading a Door Rough Opening Chart Without Copying a Universal Table
You'll find charts that say a door of a certain width needs a rough opening a couple of inches wider, or a door of a certain height needs a rough opening a couple of inches taller. Those numbers come from a set of assumptions: a specific frame thickness, a specific threshold, a specific wall. Change any one of those and the chart is wrong for your job.
So don't copy a universal table. Read the logic.
A chart entry is really saying: finished frame plus clearance equals rough opening. The clearance covers shims at the head and jambs, leveling, and the threshold build-up. When you understand that, you can convert any chart entry into a made-to-opening request.
Say a chart lists a door with a rough opening a couple of inches wider and taller than the slab. That tells you the chart's author assumes about 2 inches of width and height clearance. If your wall is thicker, or your floor build-up is bigger, your rough opening needs to be taller. The chart is a starting point, not a spec.
Published charts are generic. Verify against the actual wall. Every time.
Why the Rough Opening Is Taller Than the Finished Frame
Three reasons, and they all add up.
Shims and leveling at the head and jambs. The frame doesn't just drop into the hole. You shim it plumb and level. Those shims take space. If the framing is out of square or out of plumb, you need more space, not less.
Threshold and sill build-up at the base. An aluminum entry door has a threshold. It might be a low-profile sill, it might be a taller thermal break sill. Either way, it sits on the floor or on a sub-sill. That height comes out of your rough opening.
Tolerance for out-of-square framing. Framing is never perfect. A header that's a quarter inch out of level, a jamb that's half an inch out of plumb, these happen. The rough opening has to be big enough to absorb them. If you frame tight to the finished frame dimension, you'll be planing and shimming for hours.
This is the part most charts skip. They give you a number without telling you why. Once you know why, you can size the opening for your actual wall, not someone else's.
Standard Door Frame Height vs Made-to-Opening Aluminum Entry Doors
Here's where aluminum entry doors differ from a stock steel or wood unit. A factory can build to the opening. You don't have to fit the door to a standard size. You fit the door to your wall.
WANJIA Hiseng builds aluminum entry doors to the opening. We work in four customization modes: minor, drawing-based, sample-based, and full customization. Minor means small tweaks to an existing profile. Drawing-based means we build from your drawing. Sample-based means you send a sample or a detailed spec and we match it. Full customization means the door is designed around your opening and your requirements.
That matters for entry units with sidelights or a transom. A single door plus a sidelight plus a transom is a taller, wider assembly than a plain door. The rough opening has to account for the whole thing, not just the door leaf. If you're planning a transom door, measure the full assembly height, top of transom to bottom of threshold, plus clearance.
Double doors are the same story. A double front door has two leaves, a center meeting stile, and a frame around both. The rough opening is wider and taller than either leaf. Measure the whole unit.
For a custom run, the minimum order quantity is 2 square meters. That's low enough for a single entry door or a small project. You don't need a warehouse order to get a made-to-opening unit.
What to Send the Factory for a Made-to-Opening Quote
You don't need a stamped drawing to start. A sketch and a few numbers will get you a quote.
Send this:
- Rough opening width, height, and depth
- Wall construction type
- Swing direction (left-hand inswing, right-hand inswing, outswing, etc.)
- Door type: single, double, with sidelights, pivot
- Glass choice: laminated, Low-E, frosted, mirrored
- Finish preference: fluorocarbon coating, wood-grain transfer, anodizing, powder coating
- Any smart lock or hardware requirements
A simple sketch or drawing is enough to start. Mark the opening dimensions, note the swing, and indicate where the unit sits in the wall. The technical team can review the measurement and flag anything that looks off before production starts.
If you're working on a pivot front door, note that the pivot hardware changes the frame layout. The pivot point isn't centered on the jamb like a standard hinge. Send the opening dimensions and let the factory work out the pivot geometry. Don't try to frame for a pivot door using a standard hinge chart.
For a large front door, the rough opening may need extra height for a heavier header or a reinforced frame. Flag the size early so the factory can confirm the build.
Quote turnaround is within 3 hours on average after receiving project details. Lead time is 25-30 business days, depending on the design, materials, and order volume. Warranty depends on the specific product and contract terms.
FAQ: Door Frame Height and Rough Opening Questions
What is the standard framing height for doors?
There isn't one universal number. Framing height depends on the door type, the frame thickness, the threshold, and the wall construction. For an aluminum entry door, the rough opening height is the finished frame height plus clearance for shims, leveling, and threshold build-up. Measure your actual opening and send those numbers to the factory. A generic chart won't match every wall.
What height should a door frame be?
The finished frame height is the outside dimension of the assembled unit, including the head jamb and threshold. It's not the same as the rough opening. The rough opening is taller. If you're framing a wall, use the rough opening height, not the frame height. If you're ordering a door, give the factory the rough opening and let them calculate the frame.
What is the rough opening height for a narrow door?
A narrow door is often a bathroom or closet unit. For an exterior aluminum entry door, the rough opening height depends on the frame and threshold, not just the slab width. Measure the height at left, center, and right, take the smallest number, and add clearance for shims and threshold. Don't assume a chart applies. Send the actual measurement.
Is 72 a standard door height?
72 inches is a common height for some interior and exterior doors, but it's not universal. Standard heights vary by region and product type. For an aluminum entry door, the factory builds to your opening, so the finished frame height can be whatever the project needs. If you have a 72 inch rough opening, measure it and send the number. The factory will confirm what fits.
No universal table applies to every wall. If you want your measurement reviewed before you frame, get a quote and send your numbers. The technical team can check them against the door type you're planning.