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48 inch heavy duty zinc standard from Reeve Store Equipment Company is a single slot RV20 shelf standard that supports adjustable shelving runs over a 4 foot height. The Brillatone zinc finish identifies this standard as the zinc option in the Reeve RV20 line, which helps match existing hardware in closet, garage, or storage applications that already use this finish. The manufacturer part number 20-4 ties this piece to the 4 foot length in the RV20 family, so installers can coordinate lengths across a project while keeping the same profile and bracket fit. The standard is typically used with RV41, RV43, RV81 and RV83 series brackets, which defines the bracket family that is designed to engage this single slot profile for repeatable support. Being part of the Shelf Standards & Brackets class keeps this product focused on adjustable shelf layouts rather than fixed supports.
This Reeve shelf standard is designed with screw holes on 12 inch centers, which aligns fastening points along the 48 inch length in a consistent pattern that suits common stud or blocking layouts in many wall and cabinet constructions. The recommended fasteners are #7 flat head screws, so the countersunk heads sit properly in the standard and allow brackets to seat against the face without interference from protruding screw heads. The 11/16 inch width and 7/16 inch depth define how much space the standard occupies on the mounting surface, which matters when positioning multiple standards side by side on narrow gables or when working near door clearances. Adjustment in 1 inch increments means each slot shift raises or lowers the bracket by one inch, giving installers a simple mental grid when aligning shelves to trim, hanging rods, or existing cabinets.
The Reeve Model RV20 shelf standard is typically used with RV41, RV43, RV81 and RV83 series brackets, which establishes a matched system where the bracket tangs are designed to lock into the single slot profile of this standard. That single slot configuration defines how each bracket engages the standard, allowing each support to seat at one of the 1 inch spaced positions along the 48 inch height for fine-tuned shelf placement. Because the RV20 standard is part of a family that also offers 24, 36, 60, 72, 84 and 96 inch lengths, installers can carry the same RV41, RV43, RV81 or RV83 brackets across runs that change height, while the interface with the standard stays consistent. The Brillatone zinc finish on the standard pairs with brackets specified for the same finish family, helping maintain a unified look across every upright and support in a closet, garage, or utility shelving layout.
The 48 inch heavy duty zinc standard uses 1 inch increment adjustment, giving a predictable vertical grid that allows each shelf to be stepped up or down by exactly one inch when changing storage configurations. Screw holes on 12 inch centers distribute fastening points along the cold rolled steel bar, which helps the standard track true on the mounting surface and keeps the slot column aligned so RV41, RV43, RV81 and RV83 brackets seat squarely. The 7/8 inch thick cold rolled steel construction contributes to a rigid standard, so the single slot openings present a consistent profile that brackets can lock into along the full 4 foot height. The 11/16 inch width and 7/16 inch depth work together to give a compact upright that still provides enough bearing area for solid mounting, which is useful when installing multiple standards closely spaced in cabinet interiors or against finished walls. As part of the Shelf Standards & Brackets category, this RV20 standard is built around adjustable shelf work where repeated moves and re-spacing are expected over the life of the installation.
This RV20 shelf standard is typically used with Reeve RV41, RV43, RV81 and RV83 series brackets, so those bracket families are intended to engage its single slot profile for shelf support.
The 48 inch heavy duty zinc standard has a 4 foot length, providing four feet of vertical adjustment range for shelf brackets along a single upright in a storage or closet run.
This Reeve shelf standard measures 11/16 inch wide by 7/16 inch deep, which defines the surface footprint when mounting it and helps plan spacing between multiple uprights.
The RV20 standard is adjustable in 1 inch increments, so brackets move between slots spaced one inch apart, allowing straightforward shelf height changes in precise one inch steps.
This shelf standard uses 7/8 inch thick cold rolled steel with a Brillatone zinc finish, providing a steel upright with a zinc-coated appearance that coordinates with other zinc hardware.
The 48 inch standard has screw holes on 12 inch centers and is recommended for #7 flat head screws, giving a regular fastening pattern and a flush screw head fit against the bar.
This Reeve RV20 48 inch heavy duty zinc standard pairs a single slot profile with 1 inch increment adjustment, giving installers controlled shelf positioning across a 4 foot section of wall or cabinet. The Brillatone zinc finish and 7/8 inch thick cold rolled steel construction define both the look and the structural backbone of the upright, so it can match zinc-finished layouts that rely on steel support. Screw holes on 12 inch centers and the 11/16 inch by 7/16 inch bar size support predictable mounting layouts that fit common framing and cabinet dimensions. For projects that need a coordinated system across different heights, this 20-4 length sits within the broader Reeve RV20 family of shelf standards.
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