Atlas record

Box Squat

The Box Squat is a squat variation performed by sitting down onto a box or chair under control and standing back up. Because it standardises depth and takes away the fear of falling, it is regarded as one of the safest ways to learn squat technique.

Primary muscles
  • Quadriceps
  • Gluteus maximus
Secondary muscles
  • Hamstrings
  • Core stabilising muscles
Movement patternsquat
LevelBeginner
EquipmentA sturdy box, bench or chair (roughly at knee height)
How to perform
  1. Stand in front of the box with your feet shoulder-width apart and turned slightly out; the box should be immediately behind you.
  2. Balance yourself by reaching your arms forwards or folding them across your chest.
  3. Send your hips back and down and lower slowly towards the box.
  4. Sit softly onto the box, or touch it lightly; do not let go of your trunk tension.
  5. Drive through your heels to stand up and return to the starting position.
BreathingBreathe in as you lower and out as you stand.
Common mistakes
  • Dropping onto the box without control
  • Letting the knees fall inwards as you stand
  • Leaning the trunk too far forwards and standing up with momentum
  • Letting the heels lift off the floor
Easier variationWorking with a higher box, or a chair with armrests
Harder variationLowering the height of the box, or holding a dumbbell at the chest
AlternativeSit-to-Stand
CautionPeople with a knee or hip replacement, and anyone with a recent lower-limb injury, should choose the height carefully; if pain appears, stop the movement and seek specialist advice where necessary.

Why work with a box?

The box makes every repetition descend to the same depth, and it means there is a safe target beneath you even if your balance goes. Those two features solve the two problems seen most often when people learn to squat: reaching a different depth each time, and being reluctant to sit back. Because the height of the box can be adjusted, the movement adapts easily to whatever range of movement you currently have.

Sit down, or just touch?

Both approaches are used. Early on, sitting fully onto the box for a moment and standing up while keeping trunk tension helps develop control. As you progress, touching the box lightly and standing again keeps depth honest without breaking the rhythm. Either way, the point is to meet the box softly rather than collapse onto it.

What comes next?

Gradually lowering the box makes the movement harder in a natural way. Once the free bodyweight squat feels comfortable, the loaded Goblet Squat is a sensible next step.

Related terms: Bodyweight Squat, Goblet Squat, Sit-to-Stand, Quadriceps

From the same atlas

First published: 2026-08-12Last reviewed: 2026-08-12Editorial status: working editionReport an error