Written and reviewed by the London Garden Music Studios team. Last reviewed 3 September 2026.
The figures worth using come from measurements someone actually took and published. The Health and Safety Executive publishes a body of noise data for music and entertainment work, gathered so that employers can assess risk to musicians, and it states its distances. That data is the honest basis for answering how loud a kit is, and it is more useful than the round numbers that circulate on forums.
This page sets out what the measured sources say, how those levels compare with familiar sounds, why the bass drum behaves differently from everything else in the kit, what the exposure figures mean for a player rather than an employer, and why an electronic kit solves less of the problem than most people expect.
What a Drum Kit Actually Measures
In the HSE's guidance on controlling noise in music and entertainment, percussion is listed at 90 to 105 dB with peaks of 123 to 134 dB, measured at the player. Timpani and bass drum are given separately at 74 to 94 dB measured at 3 metres, with peaks reaching 106 dB. A drummer at an indoor music festival was measured at 105 dB, sitting just above the guitarist at 103 dB and the bass player at 101 dB in the same setting.
Two of the HSE's own case studies are more informative than any single number. A drum booth in a West End theatre pit measured 92 dB as an average across a show, over three-hour performances. In a school setting, student percussion measured 92 dB, and a teacher conducting an orchestra of brass, woodwind and percussion was exposed to 94 dB as an average level. Those are real rooms with real playing rather than a peak struck once for a meter.
A peer-reviewed 2024 study of a drum kit in a music classroom measured the full kit at 99 to 101 dB(A) in the room it was played in. It is worth noting what could not be verified: the widely repeated figures of 120 dB for a snare or 125 dB for a rim shot appear across drum blogs with no stated distance and no traceable measurement behind them, so they are not repeated here.
How That Compares With Everyday Sound
The hearing charity RNID publishes a scale that puts these levels in context. Ordinary conversation sits at about 60 dB, a food blender at 85 dB, heavy traffic at 88 dB and a pneumatic drill at 91 dB. A nightclub is around 100 dB and a live gig around 110 dB.
Against that scale, a drum kit measured at 92 dB across a whole performance is louder than heavy traffic, sustained for the length of the session. A kit peaking above 120 dB is beyond anything else that happens in a normal house. This is the reason a room built for drums is specified so differently from one built for a keyboard or an acoustic guitar, and why the difference is structural rather than a matter of adding a thicker lining.
Why the Bass Drum Is the Hard Part
Most published noise figures use A-weighting, written as dB(A), which adjusts the measurement to approximate how the human ear responds across frequencies. That adjustment discounts low frequencies heavily. The A-weighting curve subtracts about 39 dB at 31.5 Hz and about 26 dB at 63 Hz, against no adjustment at all at 1 kHz. A kick drum therefore reads far quieter on a standard meter than it feels three gardens away.
This is a recognised limitation rather than an obscure one. The assessment procedure commissioned by Defra for low frequency noise complaints, developed at the University of Salford, was written precisely because the usual A-weighted descriptors are not appropriate for evaluating low frequency noise, and it measures in third-octave bands from 10 Hz to 160 Hz instead. Low frequency energy is both the hardest thing to contain and the thing standard measurement understates.
The 2024 classroom study makes the second half of the problem concrete. Alongside the airborne level, the drumming produced structural vibration that could be felt through the floor slab underfoot and through the hands on the connecting wall. Putting the kit on a resilient platform improved airborne insulation by around 5 dB and cut structure-borne vibration by roughly 16 to 23 dB depending on the slab. Drums are two problems at once, and treating only the airborne half is why so many attempts fail.
What the Exposure Figures Mean for a Player
The Control of Noise at Work Regulations 2005 set the numbers most often quoted in this area. The lower exposure action values are a daily or weekly average of 80 dB(A) and a peak of 135 dB(C). The upper values are 85 dB(A) and a peak of 137 dB(C), and the exposure limit values, which must not be exceeded, are 87 dB(A) and 140 dB(C). HSE notes that the peak from a snare drum or a cymbal clash may exceed the 137 dB upper value.
These are duties on employers for people at work, not limits on what you may do in your own home, and it matters that the difference is stated plainly. What makes them useful to a player is the exposure arithmetic behind them. HSE's own worked figures show the upper action value being reached in one hour at 94 dB, in 30 minutes at 97 dB, in 15 minutes at 100 dB and in 7.5 minutes at 103 dB.
RNID puts the same relationship more simply: 85 dB is considered safe for up to eight hours a day, and because sound intensity doubles every 3 dB, the safe time halves with every 3 dB added. In research published in July 2025, RNID found that 58 per cent of adults aged 18 to 28 reported having experienced hearing loss, tinnitus or both after listening to music. A practice room is a hearing question as much as a neighbour question.
Whether an Electronic Kit Solves It
Only partly, and rarely in the way people expect. An electronic kit removes the acoustic sound of a struck drum head and cymbal, which is a genuine reduction, but it leaves two paths untouched. The stick still strikes a pad, producing an audible mechanical click in the room, and every one of those impacts passes into the rack and down into the floor.
The bass drum pedal is the worst offender. A beater striking a pad and a pedal mechanism working against the floor transmit directly into the structure, and what a neighbour below or next door hears is a repeating thump and click rather than a drum sound. That is structure-borne transmission, and it travels through a building far more efficiently than the airborne sound the kit no longer makes.
A resilient riser under an electronic kit addresses the structural path and is worth building, but it does nothing about stick on pad noise in the room itself. An electronic kit is a real improvement on an acoustic one in a flat, and it is not the same thing as silence.
What These Numbers Mean for a Room
Reading the measured data together gives a clear brief. A room for drums has to handle sustained levels above heavy traffic, peaks beyond anything else in domestic life, low frequency energy that standard measurement discounts, and a vibration path through the floor that absorption cannot touch. Mass, decoupling and floor isolation address those in a way that lining a room never will, which is the whole argument behind room within a room construction.
It also explains why nobody honest quotes a reduction figure for a kit before seeing the site. The starting levels are high, the frequency content is unfavourable, and the result depends on the construction, the distance to the boundary and the hours the room is used. A garden room built around a drum kit starts from those measured realities, and the design conversation begins with what you play rather than with a specification copied from another project.