
Order by 24/7 by web, contact our sales reps or call by phone.

What you need, when you need it, all in one place.

Most orders ship same day.

Advice and support from knowledgeable professionals.
Top Line Grant 72-138 hardware kit is a medium duty by-pass sliding door hardware set designed for 1-3/8 inch thick doors weighing up to 150 lbs, so it supports standard interior doors in residential and light commercial projects. This Hettich 72-138 Series kit uses a heavy duty aluminum double I-beam track with a jump proof design, which keeps the door carriers engaged in the track to help prevent derailment during everyday use. The system provides plus or minus 1/8 inch vertical adjustment, allowing minor height changes so doors can be aligned to finished flooring and trim conditions. Headroom from 1-7/8 inch minimum to 2-1/8 inch maximum keeps the track compact above the opening, which is useful where ceiling height or framing space is tight. As part of Hettich America Corporation's sliding door hardware line, this 72-138 Series is suitable for by-pass layouts between rooms, closets, cabinets, storage walls, and partitions.
The 72-138 sliding by-pass door hardware uses side mount double ball-bearing wheel carriers, which support the door from the track while providing a smooth, quiet running surface during opening and closing. Each carrier is connected through a ball and socket suspension that compensates for minor header misalignment, so the system can tolerate small variations in framing while still tracking properly. Pivoting rocker arms maintain track-carrier contact, which helps distribute load consistently and supports stable door movement. Serrations in the apron permit vertical adjustment within the plus or minus 1/8 inch range, allowing precise door height tuning after the doors are hung. A lock nut guarantees permanent positioning once the vertical adjustment is set, so door alignment remains stable over time instead of drifting during use.
The Hettich 72-138 Series is described as a premium line of medium duty by-pass door sliding hardware, positioning it for openings that benefit from smooth operation without the demands of very heavy panels. Applications include doors between rooms, which lets the hardware serve as a space-saving alternative to swinging doors across interior transitions. Closet doors are supported by the same 1-3/8 inch thick, 150 lb capacity rating, giving enough strength for typical wardrobe or storage door leaves. The kit also suits cabinets, storage walls, and partitions, so one hardware type can be specified across built-in casework and larger room-dividing elements. Available complete hardware kits use tracks in 48 inch, 72 inch, and 96 inch lengths, which aligns with common opening widths and allows appropriate track sizing for single or multiple by-pass panels.
The heavy duty aluminum double I-beam track used in this 72-138 sliding system provides a rigid guide for the carriers, which helps maintain straight travel and reduces flex over the span of the opening. Its jump proof design keeps carriers captured, supporting consistent door tracking over repeated cycles. Side mount double ball-bearing wheel carriers support smooth, quiet, and long lasting performance, reducing rolling resistance and sound as doors travel. The ball and socket suspension compensates for minor header misalignment, which is useful when framing is slightly out of level yet the installer still needs smooth sliding action. Pivoting rocker arms help maintain positive track-carrier contact, which stabilizes the hanging point of the door during movement. Serrations in the apron allow small vertical adjustments, and once that height is set, the lock nut guarantees permanent positioning for repeatable door alignment. The system conforms to ANSI/BHMA standards, Grade 1, so its performance characteristics are aligned with recognized criteria for sliding hardware in architectural use. The kit is made in the USA as part of Hettich America Corporation's product offering, which supports sourcing preferences that prioritize domestic manufacturing on projects.
The Top Line Grant 72-138 hardware kit is designed for 1-3/8 inch thick doors weighing up to 150 lbs, so it suits many standard interior and closet door panels.
The Hettich 72-138 Series offers plus or minus 1/8 inch vertical adjustment, allowing fine tuning of door height to align panels with flooring and head trim.
This sliding door hardware uses headroom from 1-7/8 inch minimum to 2-1/8 inch maximum, so it fits within compact spaces above the opening.
The heavy duty aluminum double I-beam track with a jump proof design keeps carriers captured and running straight, which supports stable, consistent door movement.
The ball and socket suspension on the 72-138 system compensates for minor header misalignment, helping doors slide smoothly even when framing is slightly out of level.
The 72-138 sliding door hardware conforms to ANSI/BHMA standards, Grade 1, indicating it follows established criteria for sliding door performance.
This Top Line Grant 72-138 hardware kit from Hettich America Corporation brings together a heavy duty aluminum double I-beam track, side mount double ball-bearing carriers, and plus or minus 1/8 inch vertical adjustment for by-pass door layouts. Its 1-3/8 inch door thickness design, 150 lb per door capacity, and 1-7/8 to 2-1/8 inch headroom range align with many interior doors between rooms, closets, cabinets, storage walls, and partitions. When a medium duty, ANSI/BHMA Grade 1 sliding door system is needed with smooth, quiet performance and stable alignment, this 72-138 sliding by-pass door hardware kit offers a coordinated solution ready for specification.
Sold In: 1 Set
Quantity | Unit Price | Catalog | ||||
|---|---|---|---|---|---|---|
Sold in: 1 Set | HT72-138-8 Mfr# 1133367 | Sliding Bypass Door Hardware - 150 lb Capacity 1-3/8" Bypass Thick Door Hardware Kits, 8' | ||||
Sold in: 1 Set | HT72-138-6 Mfr# 1133366 | Top Line Grant 72-138 6' Sliding By-Pass Door Hardware Kit |