Thanksgiving Height Check: A Family Tradition at Grandma's House
To start a family height tradition at Thanksgiving, pick one spot at the host's house (a door frame or a canvas growth chart) and one moment, such as after everyone arrives and before the meal. Then measure every kid the same way each year: shoes off, back to the wall, a flat book on the head, and a name and year beside the line. It takes about five minutes, and a full year between marks makes each kid's growth easy to see.
If the kids in your family only see Grandma a few times a year, Thanksgiving is when everyone notices how much they've grown. "Look how tall you got!" gets said at the front door anyway. A family height tradition at Thanksgiving adds a line on the wall to go with it.
This guide is for families whose growth chart lives at Grandma's house (or whichever relative hosts), and for families who want to start one there this year. It covers where the marks should go, what to set up ahead of time, a ritual script you can use as written, and how to keep the marks accurate when you only measure once a year.
Why Thanksgiving works for a yearly height check
In short: it's the one day most families reliably gather in the same place, and a year between marks makes growth easy to see.
- The date is fixed. The fourth Thursday of November arrives whether anyone plans for it or not, so the tradition doesn't depend on someone remembering. This year it's November 26.
- The whole cousin crew is there. Kids who live in different towns get measured on the same wall on the same day.
- A year is a readable gap. Weekly checks at home barely move. With twelve months between them, the space between two lines is something a five-year-old can point to.
- Grandparents get a role. The host keeps the chart, the pen, and the record, which gives the tradition a home base between visits.
One honest limit: a once-a-year mark is a keepsake, not a health record. Your pediatrician tracks growth at well-child visits, and any questions about a child's growth belong there. The AAP's HealthyChildren.org is a good plain-language starting point. If you're curious how a wall record compares with tracking apps, we covered that in growth chart vs. growth app.
Door frame or growth chart at Grandma's house?
The classic version is pencil lines on a door frame. It's free and it works, as long as the house stays in the family and nobody paints over it. Here's how the options compare for a once-a-year gathering.
| Where the marks live | Best for | Watch out for |
|---|---|---|
| Door frame at the host's house | Hosts who plan to stay put for years | Marks stay behind if the house sells, and fresh paint covers them |
| Canvas growth chart on the host's wall | Hosts who might move, downsize, or repaint | Needs a steady hook and a checked hanging height |
| A chart that travels with the holiday | Families that rotate hosts | Must be packed, rehung, and re-checked every year |
| A written log only | Homes with no good wall spot | Nothing to see on the wall, and easy to misplace |
A simple rule: if the host has no plans to move and doesn't mind the marks, the door frame is fine. If there's any chance of a move, a downsize, a remodel, or a rotating host, start on something that can roll up and go.
Already have years of lines on Grandma's door frame? You can copy them. Photograph the frame, measure each line from the floor with a tape measure, and write down the name, year, and height. Then transfer the lines to a chart. It makes a good project for a quiet hour during the visit.
What to set up before everyone arrives
Most of the fuss on the day comes from a missing pen or a chart that went back up at a different height. Take care of these a day or two ahead.
- ☐ Check the hanging height. A chart's printed scale is only accurate if it hangs at the right height. If it was taken down, moved, or packed since last year, re-measure from the floor with a tape. Our guide to hanging a canvas growth chart covers the 6-inch baseboard offset.
- ☐ Find the pen. Keep it with the chart year-round, in a small zip bag on the same hook or in a nearby drawer. For a door frame, a sharp pencil works.
- ☐ Grab something flat and hard. A hardcover book or small cutting board gives you a level line across the top of each head.
- ☐ Keep a tape measure handy for babies and for checking the chart.
- ☐ Pull up last year's numbers. Keep them in a notebook stored with the chart, or in a shared note on someone's phone.
- ☐ Clear the wall. Move the side table, the umbrella stand, and the dog bed so kids can stand flat against it.
- ☐ List who's coming. Write down each kid and their age so nobody gets skipped, including anyone who arrives late.
The 5-minute "measure at the gathering" ritual script
A little structure keeps the height check from turning into twenty minutes of chaos in the hallway. Use this as written or adjust the lines to fit your family. Plan on about a minute per kid.
Assign four roles
- The Measurer holds the book and makes the mark. This is usually the host.
- The Checker watches heels, shoulders, and chin. An aunt, uncle, or teen cousin works well.
- The Recorder writes each height in the log and takes the photos.
- The Announcer calls everyone over and runs the line. Give this job to the kid who wants it most.
Pick the moment and keep it
We suggest measuring after the last car arrives and before the meal. Nobody has left yet, and kids are still in clean clothes rather than a post-pie slump. The pause between dinner and dessert works too, since "pie is after the height check" is strong motivation. Whichever you pick, use the same slot every year.
Run the script
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The call. The Announcer gathers everyone.
"Height check! Shoes off, cousins. Youngest to oldest, line up by the chart."
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The guess. Before each kid steps up, the Measurer points to last year's line and the family guesses.
"Here's where you were last Thanksgiving. How much do you think you grew? One finger? Two? A whole hand?"
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The measure. The Checker gives the cue. The Measurer lowers the book until it rests flat on the kid's head, then marks along the underside.
"Heels on the wall, shoulders back, eyes straight ahead. Stay still for three, two, one."
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The reveal. Let the kid see the space between the old line and the new one. That moment is the whole point.
"Okay, step out and turn around. Look at that gap."
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The record. The Recorder reads the height back and writes it in the log.
"[Name], Thanksgiving 2026, age [X]: [height] inches."
- The photo. Take one photo of each kid pointing to their new line, then one wide shot of the whole chart. The wide shot is your backup if anything ever happens to the chart.
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The close. The host wraps it up, and everyone heads to the table.
"That's this year's chart. I'll keep your spots safe until next Thanksgiving."
Optional add-on: each kid names one thing they want to remember about this age, like a favorite book, a lost tooth, or a new school. The Recorder writes it in the log, not on the chart, so the chart stays readable.
How to get a mark you can trust every year
In short: same wall, same method, same time of day. When marks are a year apart, being consistent matters more than being precise.
- Shoes off, hair down. Take out buns, headbands, and clips that add height.
- Heels, back, and head to the wall. Keep feet together and eyes looking straight ahead, not up.
- Use the flat book. Hold it level against the wall and lower it until it touches the crown. Mark under the book, not above it.
- Stand on a hard floor if you can. Thick carpet or a rug can shift the line.
- Measure twice if a kid wiggled. It's quicker than wondering about it later.
- Keep the same slot. Height shifts slightly over a day, so a before-dinner mark one year and a bedtime mark the next isn't a fair comparison.
What to write next to each line
Keep it short so the lines don't crowd each other. Initials, the year, and the age are plenty, like "AJ '26, 6." When several cousins land within the same few inches, write the labels on alternating sides of the line, or give each family branch its own side of the chart.
Keep a written log too, with name, date, and height in inches. The chart shows the story at a glance, and the log lets you compare numbers without squinting at pen lines.
Adjusting the tradition for babies, teens, and cousins who can't make it
Babies and new walkers
A baby who can't stand yet can still get a first line. Lay them on their back, gently straighten their legs, and measure from the top of the head to the heel with a tape measure. Add that number to the chart with a small note like "lying down," then switch to standing once they can stand steadily. For more on timing, see our guide to when to start tracking your baby's height.
The youngest-to-oldest order helps with toddlers, since they go before the waiting gets long. If one balks, measure a stuffed animal first as a demo.
Teens who'd rather skip it
Give them a job instead. Teens make good Checkers for the little cousins, and they usually still want their own line once they're holding the book. The year a teen passes a parent or grandparent, a back-to-back comparison makes a fun add-on.
Kids who are sensitive about their height
Keep the focus on each kid's own lines, not on the cousins. "Look how far you came since last year" works, and "you're the shortest" doesn't. Any kid can sit out a year and still be in the group photo.
Cousins who can't come this year
A parent at home can measure the same way close to the holiday and text the height and a photo. The host adds the line with a small note like "measured at home." Or just leave the gap, since missed years are part of the record too.
New family members
Stepkids, adopted kids, and kids who join the family at any age get a line their first Thanksgiving there. Their line starts where they are, with no catching up to do.
Families that rotate hosts
If Thanksgiving moves between houses, let the chart travel with the holiday. Roll it rather than fold it, pack the pen and the log with it, and re-check the hanging height at each new wall. Give one person the job of packing it so it doesn't get left behind.
Giving Grandma a growth chart for her house
If the host doesn't have a chart yet, it makes a good arrival gift. The family brings it, hangs it before dinner, and makes the first marks that day. It works the other way too: grandparents can buy a chart for their own wall and surprise the grandkids with it.
Our Canvas Kids Growth Chart ($44) is 100% cotton canvas. It hangs from a single grommet, starts at the 6-inch mark to clear baseboards, and comes with a fabric-safe pen. You can personalize it with a name or text and choose the font. A chart for Grandma's house can carry a family name, or something like "The Cousins," instead of one child's name. Check the product page for what fits.
A few practical notes before you order:
- Timing: growth charts ship in 7–10 business days. For a November 26 gathering, ordering by the end of October leaves comfortable room for delivery.
- Travel care: roll the chart for the trip. The Canvas Kids Growth Chart can take a light iron if it creases, but never wash or dry it.
- Colorway: if the host's house leans colorful, you'll find both of our charts, including a rainbow version, in our canvas growth chart collection. The rainbow chart can't be ironed or steamed, so rolling matters even more.
A chart costs more than a pencil and a door frame. In exchange, you get a record that can leave the house with the family when it needs to.
Start with this year's line
You don't need a perfect system to begin. Pick the wall, put the pen and a hardcover book where you'll find them, and choose your moment. Then run the script once on November 26. The first year gives you a row of lines. The second year gives you the gaps, and that's when it starts to feel like a tradition.
Frequently asked questions
Is it okay to mark height on a door frame at someone else's house?
Ask the homeowner first. Pencil lines on trim are meant to stay, and they can be lost to a paint job or a sale. Renters may need a landlord's okay. If the host would rather keep the trim clean, a canvas growth chart on a single hook is a lower-commitment option.
What if we miss a year of the Thanksgiving height check?
You can leave the gap or fill it in. A parent can measure the child at home around the holiday using the same method: shoes off, heels to the wall, and a flat book on the head. The host adds the line later with a note that it was measured at home, and the tradition picks back up the next year.
Can you move old door frame height marks onto a growth chart?
Yes. Photograph the door frame first, then measure each line from the floor with a tape measure and write down the name, date, and height. Hang the chart at its correct height and mark each saved height at the matching spot, with a small note like 'copied from door frame.'
How accurate is measuring a child's height at home?
It's accurate enough for a family keepsake if you use the same method every time: shoes off, heels to the wall, a flat book on the head, and a hard floor. Small differences can come from posture, carpet, or time of day. For questions about how a child is growing, rely on the measurement at the pediatrician's office.
At what age can kids join the family height tradition?
Any age. Babies can be measured lying down with a tape measure, and the number goes on the chart with a note. They switch to standing once they stand steadily. Kids who join the family later start their line the first year they're there.
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