Key takeaways
- Buying the biggest platform. A 22-inch-wide footrest under a small desk crowds the chair base and often starts at 5 inches tall, too high for many petite users.
- Ignoring the minimum height. The gap for a shorter user is often only 3 inches; a footrest with a 5-inch minimum pushes knees above hips.
- Skipping the tilt check. A platform fixed at 15 to 20 degrees of tilt can strain ankles if you cannot flatten it. Look for adjustable or zero-degree options.
- Measuring barefoot, wearing shoes. Set the height in the footwear you actually wear at the desk.
- Forgetting the desk drawer. A center drawer lowers under-desk clearance by 3 to 4 inches and can collide with your knees once a footrest lifts them.
What's inside
The Short Answer
For small feet, roughly US women’s sizes 5 to 8 or men’s 4 to 7, the footrest platform that fits best is 16 to 18 inches (41 to 46 cm) wide and 11 to 13 inches (28 to 33 cm) deep, with a height that adjusts between about 3 and 6 inches (8 to 15 cm). A platform that size holds both feet flat with a couple of inches to spare on each side without forcing your legs apart, and the low end of the height range is what shorter users, who tend to have smaller feet, need to bring their thighs level under a standard 29- to 30-inch desk. Extra-large footrests at 20 inches wide or more are not a problem for small feet, but they waste floor space and often start too tall.
Standard Sizes
Under-desk footrests come in a few platform sizes and height styles. The table shows what fits small feet, and what to look for in the height adjustment, since height is the spec that actually fixes posture.
As an Amazon Associate we earn from qualifying purchases at no extra cost to you. Product prices and availability are accurate as of the date shown and are subject to change.
| Footrest type | Platform size | Metric | Height range | Best for | Typical price |
|---|---|---|---|---|---|
| Compact fixed stool | 15 to 16 x 10 to 11 in | 38 to 41 x 25 to 28 cm | 3.5 to 4.5 in fixed | Small feet, users under 5 ft 4 in, fixed desks | $10 to $18 |
| Multi-height adjustable | 16 to 17 x 11 to 12 in | 41 to 43 x 28 to 30 cm | 3 to 6.5 in, 3 to 6 stops | Sharing between users or shoes on and off | $18 to $30 |
| Tilting ergonomic | 17 to 18 x 12 to 13 in | 43 to 46 x 30 to 33 cm | 4 to 6 in plus 0 to 30 degree tilt | All-day use, ankle movement | $25 to $45 |
| Foam or rocker cushion | 17 to 18 x 12 in | 43 to 46 x 30 cm | 4 to 5 in, compresses about 1 in | Bare feet, warm floors, rocking | $20 to $40 |
| Extra-large platform | 20 to 24 x 14 to 16 in | 51 to 61 x 36 to 41 cm | 4 to 7 in | Large feet or wide stance; oversized for small feet | $30 to $60 |
Examples across the first three classes include the CasaZenith Foot Rest Under Desk foot stool at about $9.99 in the compact fixed category; the CasaZenith Foot Rest with six adjustable heights at about $19.99 and the TranquilRelax 3-Height Adjustable Foot Stool at about $21.99 in the multi-height class; and the HUANUO Adjustable Foot Rest with massage surface and tilt at about $29.98 in the tilting category. All are sized in the 16- to 18-inch-wide range that suits small feet.
How to Measure Your Space
- Measure your foot length in shoes. A women’s US 6 is about 9.25 inches long; a US 8 about 9.9 inches. Your platform depth should be at least 1 inch longer than your shoe, so 11 inches covers nearly all small feet.
- Measure your stance width. Sit normally and measure outside edge to outside edge of your feet. Most people sit with feet 12 to 15 inches apart, so a 16- to 17-inch platform gives a little margin.
- Find your height gap. Sit at your desk with the chair set so your elbows are level with the desk. Measure from the floor to the bottom of your heel while your thighs are level. That gap, usually 2 to 6 inches for shorter users, is your footrest height target.
- Check under-desk clearance. Measure from the floor to the underside of the desk or any drawer. The footrest plus your knee height must fit; a 5-inch footrest under a 26-inch-clearance desk works for most users under 5 feet 6 inches.
- Measure the floor zone. Footrests sit 8 to 14 inches back from the front edge of the desk. Confirm nothing under the desk, such as a PC tower or cable box, occupies that space.
- Account for shoes on or off. A 1-inch sole changes your ideal height by an inch. If you switch during the day, choose an adjustable model.
By Room or Use Case
Standard 29- to 30-inch fixed desk
This is the classic case. A user of 5 feet 2 inches to 5 feet 5 inches raises the chair to reach the desk and ends up with heels off the floor by 3 to 5 inches. A 16 by 11 inch footrest adjustable from 3 to 6 inches closes that gap exactly.
Adjustable standing desk, seated position
If the desk drops to 25 or 26 inches, you may not need a footrest at all. Many budget frames stop at 28 inches, though, so a compact 3.5- to 4.5-inch stool fills the remaining gap and stows against the desk leg when you stand.
Hard floors and bare feet
Choose a foam or textured-top model. Plastic platforms get cold and slippery in socks; a 17 by 12 inch foam rocker at 4 to 5 inches tall keeps small feet warm and lets ankles move. Note that foam compresses about an inch under load.
Shared home office
Two users with different heights need a footrest with at least three height stops spanning 3 to 6.5 inches. The 16- to 17-inch platform fits both small and average feet, and the stops let each person set it in seconds.
Common Sizing Mistakes
- Buying the biggest platform. A 22-inch-wide footrest under a small desk crowds the chair base and often starts at 5 inches tall, too high for many petite users.
- Ignoring the minimum height. The gap for a shorter user is often only 3 inches; a footrest with a 5-inch minimum pushes knees above hips.
- Skipping the tilt check. A platform fixed at 15 to 20 degrees of tilt can strain ankles if you cannot flatten it. Look for adjustable or zero-degree options.
- Measuring barefoot, wearing shoes. Set the height in the footwear you actually wear at the desk.
- Forgetting the desk drawer. A center drawer lowers under-desk clearance by 3 to 4 inches and can collide with your knees once a footrest lifts them.
FAQ
What height footrest do I need if I am 5 feet 2 inches?
Typically 4 to 5 inches at a standard 29- to 30-inch desk, assuming the chair is raised so your elbows meet the desk. Measure the gap under your heels to confirm; it varies by an inch or two with thigh length and shoes.
Is a smaller footrest more stable?
Stability comes from the base and the rubber feet, not the platform width. A 16-inch footrest with four rubber pads is steadier than a 22-inch one on smooth plastic feet. Small feet do fine on 16 to 18 inches.
Should a footrest tilt?
A small tilt of 10 to 20 degrees lets you flex your ankles and shift weight, which most people find comfortable for long sessions. Choose a model that also sits flat, so you can alternate. Fixed steep angles cause ankle fatigue.
Do I need a footrest with a standing desk?
Only for the seated position, and only if the desk cannot drop low enough for your feet to rest flat. In 2026 many frames bottom out at 28 inches, so shorter users still benefit from a compact 3- to 4-inch stool while sitting.
