IsoDoor V

Available in single door or double door (side by side). View available options by selecting Door Type.
Custom door widths up to 42" wide and up to 96" tall.
Built to order by IsoStore at our door shop in Idaho.
Panel options and glass kits available. Check Options below for renderings.
Standard levers, dead bolts, and smart dead bolts available. Check Options for more details.
Rough opening should be 2" wider and 2" taller than stated door size. Height assumes floor is already installed or accounted for in overall height.

INCLUDED WITH EACH STANDARD DOOR:

IsoDoor V door slab
Continuous hinge cut to size
Automatic door bottom, fully mortised
Perimeter rubber seals
Acoustic threshold
Screws required for installation

Product Use

View our Product FAQ for answers to common questions about our line of IsoDoors.

Our fully sound tested IsoDoor V is recommended for more basic wall assemblies or communicating door assemblies (combined with our other sound control door models in the same opening). The IsoDoor V is well suited for any wall with an STC rating of 47 or lower. Generally used in assemblies with standard framed walls for a significant upgrade over a solid core or solid wood door. Performance exceeds a 2" x 4" insulated wall with drywall on each side.

The standard size for our IsoDoor V 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 V 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. Each IsoDoor V arrives pre-hung with a jamb to match your wall depth, up to 8" included in the price. All perimeter seals are included with a fully mortised automatic noise reduction 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!

Options

HINGE AND THRESHOLD COLOR

IsoDoor V Hinge and Threshold Finishes

RUBBER SEAL COLOR

IsoDoor V 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, generally adding $125 to the standard. 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 V 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 V 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 V 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 V Glass Kit Drawings

DOOR HANDLES

Standard Handle: We offer INOX brand handles that fit our IsoDoor V 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 V.

SMART DEAD BOLT

We offer smart dead bolts that can operate with connections to Apple and Android devices though native apps with Bluetooth and WiFi connections. Lots of ways to unlock your dead bolt, including key code, key card, finger print, and a standard key. Sized to fit our IsoDoor V.

Installation

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 V will ship with a full installation guide and receiving instructions.

We would recommend installing the IsoDoor V 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. You can purchase them from us on our site here: isohardware.com/products/tl4-series-tubular-lock.

Sound Tests

The IsoDoor V was sound tested most recently in 2018 as an inoperable individual door at Intertek. The results of this test is 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 V weighs 7 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 HD. 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 V 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.

*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 V Inoperable	-	28	28	30	34	33	33	34	35	35	34	34	33	34	37	39	42	44	47	49
Communicating IsoDoor Basic with IsoDoor SD, 6"	20	26	37	34	39	44	39	44	47	47	48	49	50	51	54	56	57	58	61	64
Communicating IsoDoor Basic with IsoDoor HD, 6"	19	28	37	34	40	43	42	47	48	49	50	49	50	50	53	56	58	58	62	64

Specification

IsoDoor V 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	140 pounds, 7 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 47 (generally assemblies with standard framed walls for a significant upgrade over a solid core or solid wood door.)

IsoDoor V

Choose your options: