Short answer: A soundproof door is a complete, tested door set: a heavy leaf, a sealed frame, perimeter and drop seals, and careful fitting. Sound Krafted designs, supplies and installs acoustic doors for studios, meeting rooms, auditoriums, classrooms and plant rooms in Lahore and across Pakistan. Call or WhatsApp +92 300 8467101.
In most rooms the door is the weakest part of the wall. A brick or partition wall may reach STC 45 or more, while an ordinary door with a gap underneath lets sound through at around STC 20. That is why replacing or upgrading the door is often the single biggest improvement in a meeting room, studio or office. This page explains how soundproof doors work, which rating each room needs and what we include when we supply and fit them.
How does a soundproof door work?
Sound passes through a door in two ways: through the leaf itself, and through every gap around it. A soundproof door deals with both.
- Mass and damping in the leaf. A dense, multi-layer core stops more sound than a hollow or light solid leaf.
- Perimeter seals. Compression seals on the head and jambs close the gaps when the door shuts.
- Automatic drop seal. A seal in the bottom of the leaf drops onto the threshold as the door closes, so the floor gap is sealed without a trip hazard.
- A rigid, sealed frame. The frame is fixed and sealed to the wall, so sound does not bypass the door through the frame joint.
- Acoustic vision panels where needed, with laminated glass matched to the door rating.
Which rating does your room need?
| Room | Typical door set | Typical rating |
|---|---|---|
| Office cabin, consultation room | Solid core door with full seals | About STC 30 to 35 |
| Meeting room, boardroom, classroom | Acoustic door, single leaf, perimeter seals and drop seal | About STC 35 to 45 |
| Recording studio, control room, plant or generator room | High-performance acoustic door set | About STC 45 to 55 |
| Studio or cinema next to a busy space | Two acoustic doors with a small lobby (sound lock) | Combined performance well above a single door |
| Auditorium entrances | Acoustic double doors with meeting-stile seals and panic hardware | About STC 40 to 50 per door set |
Figures are typical laboratory ratings used as design targets. Ratings measured in a finished building are usually about 5 points below the laboratory figure, and can be 10 or more below where flanking paths are not controlled, so we design with a margin. STC and Rw are speech-weighted; for traffic, generator or cinema bass, also ask for Rw + Ctr or the 63 and 125 Hz test data.
Fire doors and escape routes
Where a door is on an escape route or in a fire-rated wall, the fire rating and approved hardware come first. We specify door sets that are tested for both fire and sound, keep the test reports in the handover file, and make sure seals and thresholds never obstruct escape. Our guide to fire test reports explains how to read them.
What our soundproof door supply includes
- Survey: opening sizes, wall type, floor level, traffic and the noise on each side.
- Door schedule: a rating, size, swing, hardware, vision panel and finish for every door.
- Supply: leaf, frame, seals, drop seal, hinges, closers and handles as one tested set.
- Installation by our own team, with the frame sealed to the wall and the seals adjusted on site.
- Handover: a check of every seal, test data for the door sets and simple care notes.
Where we fit soundproof doors
Our door work is usually part of a larger room: studios, auditoriums, meeting rooms and halls. Recent examples on our client list include the turnkey auditorium for the Punjab Education Foundation, which included soundproofing, acoustic ceilings and soundproof doors, and studio projects for the Punjab Council of the Arts and Beaconhouse National University in Lahore. Working since 2021, we have delivered 50 projects for 49 organisations.
What shapes the cost of a soundproof door?
We do not publish a price list, because two doors that look the same can perform very differently. The main factors are the rating, the size and number of leaves, the fire rating, the vision panel, the frame, the hardware and the finish. Our guide to soundproof door cost factors explains each one, so you can compare quotes fairly.
Doors are only one part of a quiet room
A rated door will not help much if the wall above the ceiling is open or the window rattles. Where the wall, ceiling or window also needs work, see soundproofing walls, soundproof windows and soundproofing in Lahore. For flooring and carpet tiles, see our soundproof doors and flooring page.
Frequently asked questions
How much difference does a soundproof door make?
Often the biggest single improvement in a room. An ordinary door with a gap under it rates around STC 20; a sealed acoustic door set can reach STC 35 to 55, depending on the type.
Can you replace the door without rebuilding the wall?
Usually yes. We replace the leaf and frame in the existing opening, seal the frame to the wall and fit new seals. If the wall itself is weak, we tell you at the survey.
Do you supply fire-rated soundproof doors?
Yes. Where a fire rating is needed, we supply door sets tested for both fire and sound, with approved hardware and the test reports in the handover file.
Do you fit soundproof doors outside Lahore?
Yes. We are based in Lahore and work across Pakistan, including Islamabad and other cities. We agree survey dates when you call.
Do you publish soundproof door prices?
No. Each door is quoted for its rating, size, fire needs and hardware. Request a consultation or quote and we will send a door schedule and quotation.
Request a consultation or quote for soundproof doors
Tell us about the room, the noise and the result you need. Call or WhatsApp +92 300 8467101 (Mon to Sat, 9 AM to 5 PM) or send the form, and we will reply with the next step.