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With over fifty years of manufacturing experience, UNARCO Material Handling has partnered with the best and brightest companies in nearly every industry. Warehouse storage projects have ranged from the simplest pallet rack layout to the most complex engineered systems of over one million square feet of warehouse space.

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2 column layout: text and image

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App-Engineering

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App-Engineering

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Numbers Speak For Themselves​

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Years of Experience

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Products

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Satisfied Customers

Glossary

A  | B | C | D

  • Automated Storage and Retrieval Systems

    A rack structure in which loading and unloading of the racks is accomplished by a stacker crane, or similar vehicle, without the aid of an on-board operator.

  • Allowable strength

    Nominal strength divided by the safety factor

  • Allowable stress

    Allowable strength divided by the appropriate section property, such as section modulus or cross-section area.

  • Beam

    Typically, a horizontal structural member that has the primary function of resisting bending moments.

  • Beam Locking Device

    A pin, bolt, or other mechanism that resists disengagement of the beam connector from the column.

  • Braced frame

    An essentially vertical truss system that provides resistance to lateral forces and provides stability for the structural system.

A  | B | C | D

Photo Gallery

List of external links

For UP-TO-DATE Topics on Pallet Rack Engineering Visit – UNARCO Engineering Blog

Anchor Bolt Nominal Embedment and Effective Embedment

Slab Thickness vs. Anchor Bolt Embedment

Anchor Bolt Embedment, Slab information

Adding Frame Extensions

Shim Installations: Cross-Aisle Plumb

New Design Requirements for Cantilever Racks Located in Seismic Category D and Above

New Code Editions Increase Seismic Forces

Drive-In Column Safety

Correct Installation of Teardrop Style Beams

Mixing Rack Components From Different Manufacturers

2 Column Link List with Images

  • 1 copy
    A-D Short Title
  • 11 copy
    E-L Dictionary Definitions Longer Title
  • 20 copy
    M-S
  • 30 copy
    T-Z

News List

  • Concentric Storage Systems logo

    UNARCO purchases the assets and intellectual property of Creative Storage Systems (CSS) and creates new company – Concentric Storage Systems.

  • Modern Materials Handling Magazine

    Modern Materials Handling Magazine October 2014 – BRG Sports DC – UNARCO Pick Module

Accordions

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Structural Rack Upright Capacities

Column Size C3 x 3.5 C3 x 4.1 C4 x 4.5 C4 x 5.4
Shelf Space 40″ Pan. 40″ Pan. 40″ Pan. 40″ Pan.
36″ 27,515 29,821 44,172 47,134
42″ 27,515 29,821 44,172 47,134
48″ 27,515 29,821 44,172 47,134
54″ 27,515 29,821 44,172 47,134
60″ 27,515 29,821 44,172 47,134
66″ 27,515 29,821 44,172 47,134
66″ 27,515 29,821 44,172 47,134
72″ 27,320 28,037 44,172 47,134
78″ 23,940 24,400 44,172 47,134
84″ 20,724 21,033 44,126 46,257
90″ 18,053 18,322 40,610 42,229
96″ 15,867 16,103 37,162 38,328
Column Size C3 x 3.5
Shelf Space 40″ Pan.
36″ 26,848
42″ 26,848
48″ 26,848
54″ 26,848
60″ 26,848
66″ 26,848
66″ 26,848
72″ 26,657
78″ 23,360
84″ 20,222
90″ 17,616
96″ 15,483
structural-col-profiles

Bullet Lists

Single line

  • Buy Pallet Rack Online

  • Check Order Status

  • Seismic Zip Code Search

  • Upright & Beam Capacities

  • Tons of Rack Photos

Multi-line

  • When installing the anchor bolts, the erector should refer to the anchor bolt instructions from the anchor bolt manufacturer to obtain the torque values for the anchors.

  • The anchor bolt torque is less because over-tightening the anchor bolt will fail the holding device and possibly pull the anchor out of the floor.

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