Door Hardware Function & Comparison Guide

Hartford Building Products

Door Hardware Function & Comparison Guide

Find the right way to slide, hide or fold your doors. Compare pocket door hardware, pocket door frame kits, wall-mount hardware, bypass hardware and bi-fold hardware—then choose the track, rollers and operating features that fit your project.

Start with How You Want the Door to Move

Hardware type Door movement & common uses HBP capacity Space to plan for
Pocket door hardware Door slides into a wall pocket. For a compatible existing pocket or a separately built pocket frame. Series 1: 250 lb/door.
Series 2: 200 lb/door.
Series 1 soft close + soft open: 220 lb/door.
Clear cavity beside the doorway, inside the wall.
Pocket door frame kits Creates the pocket structure and supplies sliding hardware. For new construction or an opened wall. Standard / extra-stud manual: 250 lb/door.
Premium manual: 400 lb/door.
Premium soft operation: 330 lb/door.
Room for the opening and pocket, plus framing. Match 2 × 4 or 2 × 6 wall construction.
Wall-mount hardware Door slides along the wall face. For offices, pantries and rooms where a wall pocket is impractical. Shown 72-inch kit: 250 lb/door. Unobstructed wall beside the opening; clearance over trim and baseboards.
Bypass hardware Two doors slide past one another on parallel tracks. Common for closets and storage openings. Series 1: 250 lb/door.
Series 2: 200 lb/door.
Series 1 soft close + soft open: 187 lb/door.
Door overlap, track depth and bottom guidance. Only part of the opening is accessible at once.
Bi-fold hardware Hinged panels fold together and stack at one or both sides. For closets and room dividers. Series 1: 125 lb per individual panel. Space in front for the folding panels; stacked panels reduce the clear opening.

Capacity is configuration-specific. Ratings are for each door or panel as labeled—not for each wheel or hanger. Do not add two hanger ratings together. Soft-operation hardware can have a lower rating than standard rollers, even when the track looks the same.

1. Pocket Door Track & Hardware

Choose a hardware-only kit when you already have a suitable pocket frame or are building the pocket separately. These kits provide the rolling system and guides; they do not create the wall cavity.

Series 1 · 4-Wheel Ball Bearing

Series 1 pocket door track and hardware
Series 1 pocket door track and hardware · click to enlarge
Capacity
Up to 250 lb per door with standard hangers.
Track & movement
Extruded aluminum box track; two adjustable, detachable 4-wheel hangers support one sliding door.
Good uses
Bedroom, bathroom, pantry and office pocket doors within the listed rating.
Included essentials
Track, two hangers, stop, two door guides and wrench.
Shop This Option

Series 2 · 3-Wheel Ball Bearing

Series 2 pocket door track and hardware
Series 2 pocket door track and hardware · click to enlarge
Capacity
Up to 200 lb per door.
Track & movement
Series 2 aluminum box track with two adjustable, detachable 3-wheel hangers.
Good uses
Pocket door projects that fit the 200 lb rating and Series 2 track system.
Included essentials
Track, two hangers, stop, two door guides and wrench.
Shop This Option

Both listed kits accommodate 2 × 4 or 2 × 6 wall construction and common 1 3/8-inch or 1 3/4-inch doors. The pocket frame must still provide the correct clearance for your door.

Want cushioned travel? The Series 1 soft-close and soft-open pocket hardware kit supports up to 220 lb per door and requires a door at least 30 inches wide. Confirm the minimum door weight for the selected mechanism before ordering.

Shop Soft Close + Soft OpenShop All Pocket Door Hardware

2. Pocket Door Frame Kits

A frame kit combines the pocket structure with its sliding hardware. Choose the wall size, door size and operating features together. The door slab and finish trim are separate.

Standard & Extra-Stud Frame Kits

HBP single pocket door frame kit
HBP single pocket door frame kit · click to enlarge
Standard manual capacity
Up to 250 lb per door with 4-wheel ball-bearing hangers.
Construction
Steel pocket studs, solid wood header and matching track; hidden bottom guide.
Extra-stud option
Adds support along the pocket wall. Extra studs do not increase the roller weight rating.
Good uses
New construction and remodels where the wall is open and a complete pocket structure is needed.
Shop Standard KitsShop Extra-Stud Kits

Premium I-Beam Frame Kits

HBP Premium pocket door frame kit
HBP Premium pocket door frame kit · click to enlarge
Manual roller capacity
Up to 400 lb per door with the listed standard ball-bearing rollers.
Soft-operation capacity
Up to 330 lb per door for listed Premium soft-close configurations; minimum door weight 80 lb.
Track system
I-beam track and matching Premium rolling hardware.
Good uses
Heavier or larger doors, within the selected kit’s door-size and weight limits.
Shop Premium Kits

Single or double: A single pocket door disappears into one side. A conventional double pocket arrangement uses one pocket on each side, with doors meeting at the center. This is different from bypassing doors that overlap and travel into the same side.

Check the selected soft-operation kit. Standard Series 1 soft hardware is listed up to 220 lb, while the standard frame-kit soft-close/soft-open listing also specifies a 70 lb minimum. Premium soft configurations list 80–330 lb. Use the exact kit’s specifications; the “400 lb” Premium family name does not make a soft-operation kit a 400 lb system.

3. Wall-Mount Sliding Door Hardware

Slide Along the Face of the Wall

72-inch wall-mount sliding door hardware kit
72-inch wall-mount sliding door hardware kit · click to enlarge
Capacity
Up to 250 lb per door for the shown kit.
Rolling system
72-inch track with 4-wheel ball-bearing hangers.
Function
Carries the door outside the wall rather than inside a pocket.
Good uses
Pantries, offices, room entrances and remodeling projects with usable wall space beside the opening.
Shop This Option

Plan the Wall and Door Clearance

HBP wall-mount hardware product illustration
HBP wall-mount hardware product illustration · click to enlarge
  • Allow enough track travel and wall space for the door to clear the opening.
  • Size the door to cover the opening with the required overlap.
  • Check the door’s clearance past casing, baseboards, switches and nearby furniture.
  • Fasten the track to suitable structural backing using the installation instructions.
  • Use the supplied floor/wall guide to control the bottom of the door.

A customer-built wood valance can conceal the track. The valance is not included or sold by HBP.

4. Bypass Door Hardware

Bypass doors move on parallel tracks so one door can pass in front of the other. They are useful when a swinging or folding door would project into a narrow room. Plan door overlap when sizing the opening.

Series 1 · 4-Wheel System

Series 1 bypass track and hardware
Series 1 bypass track and hardware · click to enlarge
Standard capacity
Up to 250 lb per door.
Soft close + soft open
The dedicated kit is rated up to 187 lb per door, with a 30-inch minimum door width.
Good uses
Closets, storage areas and wide openings where access to one section at a time is practical.
Shop This OptionShop Soft Close + Soft Open

Series 2 · 3-Wheel System

Series 2 bypass track and hardware
Series 2 bypass track and hardware · click to enlarge
Capacity
Up to 200 lb per door.
Track layout
Two separate overhead tracks create parallel travel paths.
Good uses
Closet and storage doors within the 200 lb rating.
Door thickness
Listed for 1 3/8-inch to 1 3/4-inch doors.
Shop This Option

Bottom guidance: The standard guide keeps the door bottoms aligned. An optional HBP bottom track with alignment rollers provides continuous guidance for compatible Series 1 and Series 2 bypass systems. It does not increase overhead hardware capacity.

Shop All Bypass Hardware

5. Bi-Fold Door Hardware

Panels Fold and Stack to the Side

Series 1 bi-fold track and hardware kit
Series 1 bi-fold track and hardware kit · click to enlarge
Capacity
Up to 125 lb per individual door panel.
Rolling system
Series 1 aluminum box track with 4-wheel ball-bearing hanger, pivots and panel hinges.
Configurations
2-door and 4-door kit options; select the kit to match the panel arrangement.
Door thickness
1 3/8-inch to 1 3/4-inch panels.
Good uses
Bedroom closets, laundry closets, room dividers and suitable light-commercial interiors.
Shop This Option

How Bi-Fold Hardware Differs

HBP bi-fold door arrangement drawing
HBP bi-fold door arrangement drawing · click to enlarge

The hinges connect the panels. Pivots locate the fixed side, while the rolling hanger follows the overhead track as the panels fold.

A 2-door kit includes one rolling hanger and one top/bottom pivot set. A 4-door kit includes two hangers and two pivot sets. This arrangement differs from a sliding door supported by two hangers.

Need more panels or all panels folding to one side? Review the Multi-Fold ordering instructions for the correct track, pivots, hinges and hangers. Do not assume a standard 4-door kit covers every folding layout.

View Multi-Fold Options

125 lb per panel means each panel. A 150 lb panel exceeds the listed rating even when the other panel is lighter. Allow clearance for the folding motion and the stack of panels at the side.

Understanding Wheels, Hangers & Tracks

A wheel rolls along the rail. A hanger is the wheel assembly that connects the door to the track. The track is the overhead rail that carries and directs the hanger. The complete assembly—not wheel count alone—determines suitability and capacity.

Series 1 · 4-Wheel Hanger

HBP Series 1 four-wheel hanger dimensions
HBP Series 1 four-wheel hanger dimensions · click to enlarge

Four wheels form one rolling hanger. The Series 1 standard pocket and bypass configurations are rated up to 250 lb per door. The bi-fold configuration uses different supporting hardware and is rated 125 lb per panel.

Series 2 · 3-Wheel Hanger

HBP Series 2 three-wheel hanger dimensions
HBP Series 2 three-wheel hanger dimensions · click to enlarge

Three wheels form one rolling hanger. HBP Series 2 pocket and bypass kits are rated up to 200 lb per door. Match these hangers to their specified Series 2 track.

Box Track · Enclosed Rolling Path

HBP Series 1 box-track cross-section and dimensions
HBP Series 1 box-track cross-section and dimensions · click to enlarge

The wheels run inside the track; the hanger connection extends through the bottom opening. The box profile helps keep the rollers engaged. Series 1 and Series 2 have their own matching track and hanger specifications.

View Series 1 Track · View Series 2 Track

I-Beam Track · Premium System

HBP Premium I-beam track
HBP Premium I-beam track · click to enlarge

The I-shaped rail uses matching Premium wheel assemblies. This is a different track-and-hanger system from the standard box track. Premium manual frame configurations support up to 400 lb per door; listed Premium soft configurations support up to 330 lb.

Track or hardware term What it means for your project
Ball bearings Bearings inside the wheel assembly reduce rolling friction. They help a correctly installed door move smoothly.
Parallel bypass tracks Two travel paths let doors pass each other. “Two tracks” describes the layout, not the number of wheels.
Top-hung door The overhead assembly carries the sliding door’s weight. A bottom guide limits sideways movement.
Bottom guide / alignment track Keeps door bottoms in position. It is not a substitute for load-bearing overhead hardware.
Soft-close / soft-open hanger Combines rolling hardware with controlled end-of-travel operation; check its separate rating and space requirements.
Matching replacement parts Match series, track profile, dimensions, mounting plate and operating mechanism. Similar-looking parts are not automatically interchangeable.

Buying track only or a hardware bag? Track-only listings do not include hangers. Hardware bags do not include track or a pocket frame. Identify your existing system before ordering replacement parts.

Choose the Operating Features You Want

Operating feature What the customer experiences What to check
Standard manual rollers You slide the door and control its speed. Stops limit travel. Door weight, compatible track and correct guide placement.
Soft Close The mechanism engages near the closed end and gently draws the door to its final position. Maximum and minimum door weight, door width and mechanism compatibility.
Soft Open The mechanism cushions the door near the fully open position; on a pocket door, this is the end inside the wall. Space for the mechanism and the required travel. This does not push the door back out.
Soft Close + Soft Open Cushioned travel at both ends. Both mechanisms must fit. Use the complete kit rating, which can be lower than the standard roller rating.
EZ Closer A push-to-release device helps retrieve a door recessed into its pocket. Select a compatible pocket-door kit. It is a different function from Soft Open.

These are operating choices within compatible systems. Pocket, wall-mount, bypass and bi-fold describe how the doors move; soft close and soft open describe how travel finishes.

Before You Order

  1. Choose the motion: into the wall, along the wall, past another door or folding to the side.
  2. Measure every door or panel: width, height, thickness and actual weight—including attached glass, trim and hardware.
  3. Check the complete configuration: use the selected kit’s capacity and any minimum weight or width for soft operation.
  4. Measure the available space: pocket cavity, clear wall, door overlap, track depth or folding clearance.
  5. Confirm mounting and guidance: provide the specified structural support, fasteners, stops, pivots and bottom guides.
  6. Match the parts: confirm the track series, hanger style and operating accessories before combining old and new components.
  7. Review what is included: distinguish frame kit, track-and-hardware kit, hardware bag and track only.

Need Help Choosing Your Hardware?

Send Hartford Building Products your opening size, door dimensions, door weight and preferred movement. For replacement hardware, include clear photos of the existing track and rollers.

Call 1-800-772-0314 · info@hartfordbuildingproducts.com

Installation Instructions & Videos

Product details reviewed September 24, 2026. Photos show representative HBP products; the selected size or configuration may vary. Follow the linked product specifications and installation instructions for the exact hardware you order.