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 by-passing door hardware set is a medium duty sliding system designed for doors between rooms, closet doors, cabinets, storage walls, and partitions. The 72-138 Series from Hettich handles 1-3/8 inch thick doors weighing up to 150 lbs, so it suits typical residential and light commercial openings that need a compact bypass layout. Vertical adjustment of plus or minus 1/8 inch lets the installer fine-tune door height to align reveals and clear flooring. A required headroom of 1-7/8 inch minimum to 2-1/8 inch maximum defines the space above the door, which helps during layout when framing or retrofitting openings. The system is built as a bypass configuration, allowing one door to slide past another, which is useful where swing clearances are tight. The product functions as part of Hettich's sliding door hardware line in the builders hardware category.
Hettich's 72-138 Series sliding door hardware provides plus or minus 1/8 inch vertical adjustment, which lets the installer bring both bypassing doors into level alignment after the doors are hung. The heavy duty aluminum double I-beam track is described as having a jump proof design, so the running gear is intended to stay engaged with the track during normal door movement. Pivoting rocker arms are specified to ensure track-carrier contact, which helps the wheels stay correctly loaded even where the header is not perfectly straight. A lock nut is listed as guaranteeing permanent positioning, meaning once vertical adjustments are set, the hardware is designed to hold that position under repeated use.
Hettich's 72-138 Series is designated for medium duty bypass door sliding hardware applications, covering doors between rooms, closet doors, cabinets, storage walls, and partitions. This range of applications means the same Top Line Grant 72-138 by-passing door hardware set can be specified on closets and wider storage openings where two doors need to slide past one another. The system is rated for 1-3/8 inch thick doors weighing up to 150 lbs, which fits many wood or laminated slabs in residential and light commercial environments. The stated headroom requirement of 1-7/8 inch minimum to 2-1/8 inch maximum helps align this hardware with openings where the ceiling or soffit height is constrained yet still needs a concealed track zone. Because the series is part of sliding door hardware for storage walls and partitions, it supports layouts where wide spans are divided into bypass panels instead of swinging doors.
The side mount double ball-bearing wheel carrier is specified to guarantee a smooth, quiet and long lasting performance, so each operating cycle is designed to have low rolling resistance and consistent motion. A ball and socket suspension is described as compensating for minor header misalignment, which allows the carrier to adapt slightly when framing or finish carpentry is not perfectly true, helping reduce binding. Pivoting rocker arms further ensure track-carrier contact, keeping load distribution stable as the door travels along the heavy duty aluminum double I-beam track. Serrations in the apron are stated to permit vertical adjustment, which gives a defined interface for small height changes without slip once tightened. The lock nut is described as guaranteeing permanent positioning, so once adjustment is dialed in, the hardware is intended to hold alignment. The hardware conforms to ANSI/BHMA standards, Grade 1, indicating the system is tested to a recognized performance level within builders hardware.
The Top Line Grant 72-138 by-passing door hardware set is designed for 1-3/8 inch thick doors weighing up to 150 lbs, so door construction needs to fall within those limits for proper operation.
Hettich's 72-138 Series is described for doors between rooms, closet doors, cabinets, storage walls, and partitions, covering many interior bypass door layouts on a project.
The 72-138 Series offers plus or minus 1/8 inch vertical adjustment, allowing the installer to fine-tune door height to align gaps and clear finished flooring conditions.
The hardware uses a heavy duty aluminum double I-beam track with a jump proof design, so the carriers are intended to stay engaged during normal sliding movement.
The ball and socket suspension is described as compensating for minor header misalignment, and pivoting rocker arms help maintain track-carrier contact when framing is slightly out of line.
The 72-138 sliding door hardware conforms to ANSI/BHMA standards, Grade 1, indicating it is tested to a recognized builders hardware performance classification.
The Top Line Grant 72-138 by-passing door hardware set from Hettich America Corporation combines a heavy duty aluminum double I-beam track design with a side mount double ball-bearing wheel carrier to support smooth, quiet operation on 1-3/8 inch thick doors up to 150 lbs. Vertical adjustment of plus or minus 1/8 inch, serrated aprons, and a lock nut for permanent positioning allow precise alignment of bypass panels across closets, storage walls, cabinets, and partitions. For projects needing medium duty bypass door hardware that conforms to ANSI/BHMA Grade 1 standards within these stated limits, this 72-138 Series configuration is suited to planned openings.
Sold In: 1 Set