Closet frames are constructed from cold‑rolled steel with a minimum yield strength of 350 MPa, providing sufficient rigidity for static loads up to 250 kg per shelving unit. The steel undergoes a
Inquire NowCloset frames are constructed from cold‑rolled steel with a minimum yield strength of 350 MPa, providing sufficient rigidity for static loads up to 250 kg per shelving unit. The steel undergoes a hot‑dip galvanization process (Z275 coating) to achieve a corrosion resistance rating of 500 hours in salt‑spray testing per ASTM B117.
Shelf panels are available in three thicknesses: 18 mm particleboard with melamine finish, 25 mm medium‑density fiberboard (MDF) with PVC edge banding, and 30 mm high‑pressure laminate (HPL) over a plywood core. Each option is rated for a uniform distributed load (UDL) of 150 kg/m², 200 kg/m², and 250 kg/m² respectively, allowing selection based on intended stored items.
Overall system width, height, and depth are adjustable in 50 mm increments to match site‑specific clearances. Vertical uprights feature perforated slots at 25 mm pitch, enabling shelf repositioning without tools.
Optional accessories include: slide‑out drawers (full‑extension ball bearing slides rated 40 kg), hanging rods (Ø30 mm steel with 150 kg capacity), and integrated lighting conduits (12 V LED strips with IP44 rating). All accessories attach via standardized brackets that maintain the frame’s load path.
The workflow begins with a site survey capturing floor‑to‑ceiling height, obstructions, and load expectations. These parameters are entered into a parametric CAD model that automatically generates a bill of materials (BOM) and deflection analysis based on Euler‑Bernoulli beam theory.
Deflection limits are set to L/200 for shelves and L/150 for uprights, ensuring minimal sag under maximum load. The model outputs production drawings with tolerances: ±0.5 mm for cut lengths, ±0.1 mm for hole positions, and ±2° for angular brackets.
| Parameter | Typical Value | Notes |
|---|---|---|
| Frame material yield strength | 350 MPa | Cold‑rolled steel, hot‑dip galvanized |
| Maximum shelf UDL (HPL) | 250 kg/m² | 30 mm HPL over plywood core | Deflection limit (shelves) | L/200 | L = span length |
| Deflection limit (uprights) | L/150 | L = upright height |
| Corrosion resistance (coating) | 500 h ASTM B117 | Z275 galvanization |
| Load capacity – hanging rod | 150 kg | Ø30 mm steel rod with reinforced brackets |
In manufacturing facilities, these closet systems organize tooling, fixtures, and personal protective equipment (PPE) near workstations, reducing retrieval time by up to 30 % compared with static shelving. The adjustable shelving accommodates varying fixture heights, allowing quick reconfiguration for different product lines.
Warehouse dispatch areas use the units to sort and store packaged goods prior to shipment. The high load capacity of HPL shelves supports palletized boxes up to 250 kg/m², while the corrosion‑resistant frame withstands occasional exposure to moisture from loading docks.
Each production lot undergoes dimensional inspection using coordinate measuring machines (CMM) with a tolerance verification of ±0.2 mm for critical interfaces. Load testing is performed on a representative sample: shelves are subjected to 1.5× rated UDL for 24 hours with deflection recorded every hour.
Surface finish adhesion is evaluated via cross‑hatch test (ASTM D3359) ensuring a rating of 5B for melamine and PVC coatings. Final visual inspection checks for weld uniformity, coating continuity, and absence of burrs on all edges.
Submit your site measurements and load requirements for a detailed quotation and layout drawing. Our engineering team will review the inputs and return a proposal within two business days.
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