IsoStore Quantity Discounts Do Not Apply to IsoDoors

IsoDoor SD

$2,600.00
for a standard 36" x 80" door
Lead Time: 4 WEEKS

AVAILABLE IN CUSTOM SIZES UP TO 42" WIDE AND 96" TALL
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View our Product FAQ for answers to common questions about our line of IsoDoors.

Our proprietary and fully sound tested IsoDoor SD will achieve an STC and OITC rating appropriate for most projects. The IsoDoor SD is well suited for any wall with an STC rating of 55 or lower. The IsoDoor SD is generally used in assemblies with standard framed walls with Green Glue Compound/MLV, resilient channel, and/or staggered stud framing.

The standard size for our IsoDoor SD is 36” wide and 80” tall. This is a custom door that can be built in a size anywhere from 24" to 42" wide and 60" to 96" tall. With a slab thickness of only 1-3/4” and a standard backset of 2-3/4”, the IsoDoor SD fits any standard door handle. We do recommend solid stainless steel handles to stand up to the weight of the door and pressure of the door seals, which is why we recommend the purchase of INOX TL4 with our IsoDoor SD, available here: https://isohardware.com/products/tl4-series-tubular-lock. The weight of the IsoDoor SD is 230 pounds, about 130 pounds more than a solid interior door core. Each sound deadening interior door arrives pre-hung with a jamb to match your wall depth, up to 8" included in the price (deeper jamb depths available on request for an additional charge). All perimeter seals are included with a fully mortised automatic door bottom, acoustic threshold, and rubber perimeter seal system. The only component not included is the door handle itself.

Our line of IsoDoors are designed and manufactured from start to finish by IsoStore. We offer a full year warranty on workmanship and materials from the date the sound deadening door is received.

WHO USES OUR DOORS?

We have a large list of clients ranging from recording studios, theater builders, music artists, universities, DIY customers, and many, many, more. A short list of our more recognizable customers can be found below. Rest assured, when you purchase an IsoDoor for your project, you are investing in a door that is trusted by the biggest names in their industry.

Musical Artists: Chainsmokers, Pearl Jam, Marshmello, Twenty One Pilots, Coldplay, Smashing Pumpkins, Dr Dre, YG, Camila Cabello, Quavo Huncho, Post Malone, Snoop Dogg, Jaycen Joshua, Markus "Notch" Persson, Ringo Starr, Jon Bellion, Voice Guy Matt. Recording and Sound Studios: 77 Recording Studios, Fox River Studios, Oak Hollow Recording, 4U Recording Atlanta, 331 Sound Inc, Top Dawg Entertainment, Auricle Studios, Dauphin Street Sound, Pirate Studios, Forge Recording, Gat3 Studio, Hi-Five Studio, Sessions Studios, Reel Foley Sound, Kota NY, Mid South Audio Studio, Rad Lazer, Vision Entertainment. Schools and Universities: School of Rock, University of North Carolina, Stanford University, Seattle Community College, University of Nevada Reno, Grace College, Haverford College, Burr and Burton Academy. Engineers and Designers: Acousti, Professional Audio Design, Crossley Acoustics, Pro Audio LA, Ears Up Sound Design, Omni Studios, Erskine Group, FC Owens, New England Soundproofing, Haverstick Designs. Composers: Jeff Russo (Tonic, TV shows: Snowfall, Star Trek, Fargo), Mike Post (Law & Order), Zach Robinson (Kobra Kai), Michael Stein (Stranger Things). Corporate Customers: HearingLife, Disney Pixar, Blissful Relaxation, CBS Broadcasting, Warner Brothers, Atlantic Records, United States Air Force. DIY Customers Building Home Theaters and Studios: Hundreds, upon hundreds and growing every week!

HINGE AND THRESHOLD COLOR

IsoDoor SD Hinge and Threshold Finishes

RUBBER SEAL COLOR

IsoDoor SD Rubber Seal Colors

DOOR WIDTH AND HEIGHT

Our standard door price is based on a 36" door width for a 38" rough opening. An option to change the width to 28", 30", 32", 34", or 42" is available. Other custom widths are available upon request.

Our standard door price is based on an 80" door height for an 82" rough opening. An option to change the height to 84" or 96" is available. Other custom heights are available upon request.

JAMB WIDTH

Measure or calculate the depth of the wall from the two outside finish layers (include all layers of drywall and isolation products). Our standard door price allows for extra wide jambs up to 8". Jambs wider than 8" must be custom quoted. We recommend doors requiring jambs wider than 8" to build an extension on site using 3/4" beech or MDF. Jambs wider than 8" will ship knocked down in the crate to protect the jambs during shipping.

If communicating doors are planned, measure the overall depth of the cavity where the doors will be installed, divide by two, and subtract 1/4" from each jamb depth. This 1/2" gap is used to relieve air pressure into the wall cavity when closing both doors.

DOOR SWING

Swing is determined from outside the room, before using the door to enter the room. Looking at the door, will the hinge be on the left or the right? Will it swing in or swing out? This determines the swing of left hand (LH) or right hand (RH) and in (I) or out (O).IsoDoor SD Door Swing Handing

PANEL DESIGNS

We offer panel designs on one side or both sides. If on one side, then our default is to the exterior side of the door, which is determined by the swing selected when ordering, unless otherwise noted. A one-sided panel does not increase the thickness of the door model and is only available in a paint grade option. If on both sides, then the door thickness will be increased by 1/4". The IsoDoor SD would become a 2" thick door with a double-sided panel. Our panel designs are only available in the shaker style shown in the photos below. We do not offer more decorative panel options. Trim can be surface mounted to the face of our doors on site. Larger panel photos are available in the product thumbnail photos at the top of the page.

IsoDoor SD Recessed Panel Drawings

GLASS KITS

Our glass kits are acoustically rated double laminated insulated glass units designed to maintain or exceed the performance of the door in which they are installed. For our SD and V doors, our glass kits are 1-1/4" overall thickness with two separate laminated panes of glass of different thicknesses that both use an acoustic interlayer from Saflex. This IGU is a sealed unit, so you will never need to take apart the glass kit for cleaning. Larger glass kit photos are available in the product thumbnail photos at the top of the page.

IsoDoor SD Glass Kit Drawings

DOOR HANDLES

We offer INOX brand handles that fit our IsoDoor SD door thickness, backset, and are built with quality steel to stand up to the weight of our IsoDoors. The most common lever style can be purchased direct from our order page and many more styles can be purchased from our isohardware.com site. Also, if you select the option to add a bore for a dead bolt and you will see a drop down to add dead bolt hardware sized to fit our IsoDoor SD.

Installation of our doors require at least two people. The steps involved with installing a sound door are very similar to installing a standard door. Careful attention must be paid to the rubber perimeter seals and adjustment of the automatic door bottom to achieve the full STC ratings achieved in our lab testing. Each IsoDoor SD will ship with a full installation guide and receiving instructions.

We would recommend installing the IsoDoor SD or IsoDoor HD doors as interior doors only. If an exterior installation is required, use a quality spar urethane sealer and paint with a quality exterior paint on all 6 sides.

DOOR SEAL DESIGN

Our door seals create dead air space and redundancies allowing for an easy installation with more room for error. Because of this, performance from our lab tests are easily replicable in the field. Other isolation door manufacturers have bulky seals that appear to install easily, but often create major deficiencies in the corners and will require adjustment over time.

DOOR HANDLES

We do recommend solid stainless steel handles to stand up to the weight of the door and pressure of the door seals. For this, we recommend INOX brand handles for our IsoDoor HD, SD, and V. These are quality stainless steel handles inside and out. This is important when installed in an opening with heavy doors, especially in our HD models. You can purchase them from us on our site here: isohardware.com/products/tl4-series-tubular-lock.

IsoDoor SD Product SpecsPDF 510 KB

IsoDoor Sell SheetPDF 619 KB

IsoDoor SD Specs
Dimensions Standard 36" x 80". Available in any width from 24" to 42", and any height from 60" to 96".
Slab Thickness 1-3/4"
Slab Panel Standard is flush (smooth). Options for Panel 10, 20, 30, 35, 40, 50, and 60.
Weight 230 pounds, 11.5 pounds per square foot
Jamb Material 3/4" thick, standard depth is 3.5" to 8"
Hinges Continuous piano-style hinge, only 1/32" sag with over one million uses for a 500 pound door
Perimeter Seals Rubber perimeter seals with fully mortised automatic door bottom and acoustic threshold
Performance Suitable for walls up to STC 55 (generally assemblies with standard framed walls with Green Glue Compound/MLV, resilient channel, and/or staggered stud framing)

The IsoDoor SD was sound tested as an operable individual door at the most accurate acoustics lab in the United States using the most recent ASTM standards. A summary of the results for the operable individual door tests can be found in the product specs download. We have also completed independent sound tests of communicating assemblies using our IsoDoor SD with our IsoDoor HD and IsoDoor V. The results of these tests are available upon request.

COMPARING PERFORMANCE

Unfortunately, the accuracy and consistency of STC tests varies greatly depending on the lab and the year testing was completed. The majority of testing we have found from competitors is no more recent than the mid-1990′s with some testing back to the 1960's. To make it worse, many of the tests were done in the manufacturer's own facilities in labs that cannot accurately measure the ranges tested.

Because of this, a competitor’s STC claims cannot be compared head to head with our STC results. We tested our line of IsoDoor in 2012 in an acoustic lab known as the most accurate lab in the United States. Our ratings may appear lower than some of the highest ratings you will find, but we are confident that our STC numbers will meet or exceed the competition and can be duplicated both in the lab and in the field.

To compare our doors with other manufacturers, we would suggest using simply the weight of a door per square foot and overall thickness of the door. Our IsoDoor SD weighs 11.5 pounds per square feet, is 1-3/4" thick, and has no resonance issues (referring to the STC contour line in the test). Compare this information alone and you will have a more accurate understanding of how their door compares to ours.

COMMUNICATING DOORS

We suggest creating a communicating door assembly to increase isolation significantly beyond the IsoDoor H. Our tests show STC/OITC ratings with the IsoDoor HD as high as 65/50 which meets or exceeds double stud walls. Combining the IsoDoor SD with the IsoDoor HD or combining the IsoDoor HD with the IsoDoor HD LF will help avoid common resonance issues that occur when two similar materials are installed in the same assembly. Two IsoDoor SD can be used in the same communicating assembly with a slight change in core design to avoid these resonance issues.

*All test results shown in this table were achieved through third party testing from accredited laboratories. The full test is available upon request.

Independent Sound Test Results
Doors Tested 50
Hz
63
Hz
80
Hz
100
Hz
125
Hz
160
Hz
200
Hz
250
Hz
315
Hz
400
Hz
500
Hz
630
Hz
800
Hz
1,000
Hz
1,250
Hz
1,600
Hz
2,000
Hz
2,500
Hz
3,150
Hz
4,000
Hz
IsoDoor SD
Fully operating
27 29 28 30 30 33 33 35 37 38 40 42 43 44 44 44 44 45 47 50
Communicating
IsoDoor SD with IsoDoor SD, 10"
27 36 39 41 41 44 45 44 45 46 47 47 49 48 50 52 53 53 56 59
Communicating
IsoDoor SD with IsoDoor HD, 6"
29 37 38 41 40 46 47 48 49 48 52 51 51 50 54 57 58 59 62 65
Communicating
IsoDoor SD with IsoDoor Basic, 6"
20 26 37 34 39 44 39 44 47 47 48 49 50 51 54 56 57 58 61 64
Communicating
IsoDoor HD with IsoDoor HD LF, 22"
32 39 40 42 42 48 53 52 53 60 59 60 66 66 70 73 73 73 71 73