The hard part of an apartment workout is the question running in the background: is the unit below hearing this. Most guides answer it with a list of “no-jump” moves. This one gives the actual number the noise is measured against, sorts common exercises by whether they clear it, and then hands you three routines built to stay under the line. For the broader 5 / 15 / 30-minute time-budget framework, see the guide to staying active in a small apartment.

The number your neighbor’s floor is allowed to feel

Floor noise is regulated in places that took it seriously, which gives a target instead of a vibe. South Korea sets a legal inter-floor direct-impact limit (footsteps, jumping, a dropped weight) of a one-minute average of 39 dB(A) by day and 34 dB(A) at night, with a peak cap of 57 and 52 dB(A); the daytime figure was tightened by 4 dB in 2022 after a state experiment found about 30 percent of people annoyed at the old 43 dB level. The WHO’s guidance for indoor inter-floor noise is stricter still, 35 dB day and 30 dB night. The construction side carries its own minimum: Germany’s DIN 4109 requires a dwelling-separating floor to hold impact sound to L’n,w 50 dB or below. You did not set the building’s number, but knowing the target tells you how little impact you actually have to make, and research on Korean buildings attributes about 73 percent of floor-noise complaints to heavy impacts, adults walking and children running or jumping.

A decibel ladder of apartment moves

Sort your exercises by where they sit relative to that line, not by whether they “feel” quiet.

  • Comfortably under the line: wall sits, planks, dead bugs, slow tempo squats, split squats, glute bridges, standing band work. No foot leaves the floor with force, so almost no impact reaches the slab.
  • Near the line: marching in place, light step-ups, fast bodyweight squats. Controlled and on a mat they pass; rushed or barefoot on bare hardwood they creep up.
  • Over the line, any hour: jumping jacks, burpees, jump rope, running in place, dropped weights. These are heavy impacts a mat does not fix, and they are exactly the moves the complaint statistics are built on.

The design rule that follows: build the session from the first group, borrow from the second during daytime only, and keep the third out of an upper-floor flat entirely.

What they actually hear: reading your floor by L-value

Japan grades how an impact is perceived overhead on an L-value scale. For running and jumping above you, L-40 is described as “heard slightly, sounds far off,” while higher L-numbers mean the impact reads as clearly close and intrusive. The practical translation: even a “soundproofed” floor only shifts how loud your impact lands, it does not erase it, so reducing the impact at the source beats trusting the build. The tempo, unilateral, and isometric upgrades below cut the impact to near zero without making the session easier.

To put your own move, mat, and hour against the limit before you start, run them through the estimate here.

Apartment noise-risk estimate

Pick your situation. The estimate updates as you change any answer and names the one fix that helps most.

Estimated risk: -

FitVilo model - based on published figures. See methodology.

Designing a routine that stays under the line

Three quiet-strength levers make a bodyweight session harder without changing the floor-contact pattern: slow the lowering phase to 3 to 5 seconds (tempo), work one side at a time to roughly double the load (unilateral), and hold the hardest position (isometric). Built from those, three routines that each run under 15 minutes with no equipment beyond a mat:

  • The Wall-Sit Ladder (10 min). Three rounds: 30 s wall sit, 60 s marching, 45 s wall sit, 60 s marching, 60 s wall sit, 60 s marching. Add 15 s to each wall sit weekly.
  • The Unilateral Series (15 min). Three rounds: 8 split squats per leg, 10 single-leg glute bridges per side, 6 one-arm wall push-ups per side, 20 s side plank per side; 60 s rest. Lower the push-up angle each week.
  • The Slow Circuit (12 min). Three rounds: 10 squats with a 3 s descent, 12 plank shoulder taps, 8 dead bugs per side, 8 reverse lunges per leg; 60 s rest. Extend the squat eccentric to 5 s, then add a 1 s pause.

Quiet-hours windows that match the law

Match the workout to the hour, not the reverse. Many municipalities and most European buildings run quiet hours 22:00 to 07:00, and Korea’s stricter night limit starts at 22:00.

  • Before 08:00: isometric and slow work only, no marching, no setting weights down hard.
  • 09:00 to 18:00: full range; the building is awake and ambient noise covers small sounds.
  • 18:00 to 22:00: drop the heaviest impacts; skip marching if a small child is going to bed below.
  • After 22:00: stretching, breath, mobility only.

Layout: floor, ceiling, and the shared-wall edge case

Top floor with no occupied unit below is the rare free case; over a shop or office, the full range works in business hours and tightens after close. The shared-wall studio flips the problem from floor to wall: a wall sit transmits almost nothing, but a band anchored to pull against the party wall transmits a lot. That lateral case has its own map and routines in thin-wall workout routines. A yoga mat is the cheapest acoustic upgrade on hardwood, and bands and adjustable dumbbells fit a quiet program only set down, never dropped (the adjustable dumbbells comparison covers that). To run the program with nothing at all, see a no-equipment workout space. If you have a medical condition or injury, talk to a clinician before starting.

Common questions

How quiet does an apartment workout actually need to be?

Quiet enough to stay under a floor-impact limit that, where it is regulated, sits around 39 dB by day and 34 at night (stricter, 35/30, in WHO guidance). In practice that means no jumping, running, or dropped weights on an upper floor; isometric and slow work clears it easily.

Will a thick mat let me do jumping exercises?

No. A mat cuts light impact (set-downs, footsteps) but not the heavy, low-frequency impact of jumping or a dropped weight, which travels through the floor structure. Swap jumps for marching, fast step-ups, or tempo squats instead.

When is it safe to do a louder session?

Roughly 09:00 to 18:00, when the building is awake and a downstairs neighbor is least likely to be home and resting. Keep early mornings and after 22:00 to isometric, stretching, and breath work.

Sources