Series 3300: Ultimate Sound Control
When you need the highest level of acoustic performance, Woodfold's Series 3300 delivers FSTC 33 sound isolation with dual-wall construction. Perfect for conference rooms, churches, restaurants, and premium spaces requiring superior sound control.

Superior sound isolation since 1985
Why Series 3300 Delivers Premium Acoustics
When conference rooms need complete privacy, churches need acoustically separated sanctuaries, and restaurants require quiet dining experiences, they specify Series 3300. This isn't just an acoustic door—it's a premium sound barrier creating tranquil environments.
The Premium Sound Challenge
Standard acoustic doors can't handle demanding sound requirements. Meeting rooms suffer from sound leakage, restaurants can't control noise levels, and worship spaces lose acoustic separation. Your premium spaces demand superior performance.
Series 3300 provides FSTC 33 sound isolation with advanced dual-wall construction. Engineered acoustic materials create an exceptional sound barrier that maintains complete functionality while delivering the peaceful environment your premium spaces require.

Why Series 3300 Stands Apart
FSTC 33 Sound Rating
Exceptional sound reduction performance that creates superior acoustic separation. Perfect for premium environments requiring maximum sound control and privacy.
Dual-Wall Construction
Advanced dual-wall design with acoustic core materials delivers exceptional sound performance. Engineered for maximum isolation while maintaining operational flexibility.
Premium Hardwood Finishes
Available in beautiful hardwood veneer finishes including Birch, Cherry, Maple, Mahogany, Oak, and Walnut. Premium appearance that complements high-end interior designs.
Custom Premium Solutions
Every premium acoustic door is custom-built to your exact specifications. Widths from 3 feet to 30+ feet. Heights up to 10'1". Premium performance tailored to your high-end space requirements.
Series 3300 Specifications
Dual-Wall Acoustic Construction
Series 3300 features advanced dual-wall construction with acoustic core materials delivering FSTC 33 sound isolation. Engineered for premium environments requiring maximum sound control and acoustic privacy.

Where Series 3300 Excels
Series 3300 Installations




Ready for Premium Acoustic Performance?
Get instant pricing for Series 3300. Maximum sound isolation, custom-built to your specifications.
Configure Series 3300 NowSeries 3300 — Details, Finishes & Measuring
You could pay more for an acoustic room partition, but you don’t have to: Woodfold Series 3300 Acoustic Accordion Doors reduce distracting noise by using an acoustic lining and a perimeter seal. With an exclusive heavy-duty hardware system, this dual-walled partition is as at home in offices or religious facilities as it is in restaurants or hotel meeting spaces needing effective sound control. Series 3300 doors are available in a variety of attractive hardwood and Vinyl-Lam finishes, and can be ordered with differing finish materials on each door face. Find the perfect one under the Decorative Options and Color & Wood Selector tabs.
- Panels: 4¼” wide by ¼” thick; available in Vinyl-Lam and hardwood veneer faces, front and back
- Panel Connectors: Flexible vinyl, color-coordinated to panel selection Standard colors: White, Sand, Gray, Brown, Black
- Track: 2-7/16″ x 1¾” aluminum, clear finish; heavy-duty aluminum ceiling guard with separate track available
- Sound Seal: Dual-wall doors with internal sound-absorbent material; flexible vinyl sweep strips mounted on top and bottom of the door; wood molding mounted on both sides of the track forming 11-5/8″ wide sweep surface
- Wheels: 1-1/8″ nylon wheels with ball bearings on steel axle
- Lead Post: 2-7/8″ x 4½” heavy-duty aluminum, color-coordinated to panel connectors
- Jamb Molding: 2-1/8″ wide by 15/16″ deep aluminum
- Handle: Molded PVC with finger recess
- Latch: Deadlatch with thumbturn on two sides; keylock option available
- Width: Custom crafted to any width; intermediate rolling posts required on sections exceeding 15′
- Height: Vinyl-Lam up to 10’1″; hardwoods up to 10’1″
- Stacking Space: 2″ per foot, plus 4½” for lead post
Notes:
- Series 3300 not available unfinished or with curved track.
- Production schedule: Usually 2 to 4 weeks depending on order.
* Field Sound Transmission Class: The dual-walled Series 3300 Acoustic Partition has a field sound transmission class rating (FSTC) of 33. Field tests were performed by Bruck, Richards & Chaudiere, Inc. of Seattle, Washington following the procedures specified in ASTM designation E 336-90.
PLEASE NOTE: The stain and color samples on this page have been color matched using a monitor calibrated to the sRGB IEC1966-2.1 color profile. Intended only as a guide for color selection, the actual finish materials will vary due to the natural and acceptable variations in wood grain characteristics, textures, and color tones, as well as the color variation that occurs among individual computer monitors.
*All panel samples show factory default color combinations, unless noted otherwise.
Natural Hardwood Veneers
Woodfold has today’s most popular hardwood species to match your interiors. Woodfold insists on select grade veneers, laminated to an engineered core to ensure excellent dimensional stability. Clear finish is standard; however, custom-stained finish service is always available.












Vinyl-Lam Woodgrains
Incredibly realistic looking, Woodfold’s Vinyl-Lam woodgrain finishes provide a wide range of color selection representing several wood species. Woodfold’s Vinyl-Lam finishes are laminated to an engineered core to ensure excellent dimensional stability.










Solid Colors and Textures
Woodfold’s solid color, multi-textured vinyl’s are selected to compliment the most popular current interior colorations. Woodfold’s Vinyl-Lam finishes are laminated to an engineered core for excellent dimensional stability.








Hardware & Connectors
Coordinating Hardware Hinge System A clear (silver) finish is supplied with Off-White and Chalk. A bronze finish supplied with all others.
Coordinating Vinyl Panel Connectors We carefully color coordinates our vinyl panel connectors as a standard feature.





To assure correct sizing of your Woodfold accordion door the finished opening should be measured precisely from side to side for width and from the header surface where the track will be attached, to the finished floor or counter surface for height.
Width Measure the width at the bottom, halfway up and at the top of the door and use the widest dimension you have. Note: if the widest dimension is at the bottom or center you may have to trim the suspension track to fit your opening at the top of the door as track lengths are made to the ordering width. This can be done with a hacksaw.
Height Measure from the top of the finished floor to the point where you are going to attach the track. NOTE: For those areas where the floor is uneven (e.g. concrete floors) please take 3 or 4 height measurements along the floor. Use the shortest measurement as the finished opening height except 2100, 3300 or 4100. For sound doors use tallest height.
Dimensions should be stated width first and then height and should represent sizes after any and all modifications have been done to the opening. Unless customer specified, we will allow 9/16″ floor clearance for doors over 4′ high and 5/16″ for doors 4′ and less. Beware of variations in floor and/or ceiling surfaces.
Please check your measurements for accuracy. Contact us if you need additional assistance.