Rack Capacity Certification
Statement of Mac Rak’s Engineered Repair Kit Carrying Capacity.


For the past nineteen years, Mac Rak Inc. has invested in and is driven by extensive structural P.E. testing data for each and every one of our repair components, including all associated connection components.

From the results of numerous rigorous tests by various top structural P.E. firms (Seizmic Inc is our main structural P.E. testing partner), Mac Rak stands behind the following claim:

Mac Rak fully complies with ANSI MH 16.1 which means our repair components are as strong as the original undamaged component.


This claim is valid provided the component has been installed in conformance with all Mac Rak installation procedures and performed by a trained and certified Mac Rak installer.  This claim pertains to both seismic and non-seismic zones.

Mac Rak does not provide load carrying capacity ratings for our engineered repair kits.  Our claim is simply: The load capacity of our properly installed engineered repair kits is exactly the same as the original undamaged pallet rack frame. This is in full compliance with ANSI MH 16.1.   

Pre- and post-repair carrying capacity load ratings can be attained through independent, qualified engineering companies familiar with the design and construction of storage rack systems. (Upon request, Mac Rak will provide referrals of qualified engineering companies).  The racking system’s original manufacturer is also a source for carrying capacity information. 

As a service, Mac Rak has the capacity to supply project specific, independent P. E. stamped documentation which will confirm that our repair kit(s) provide for “as strong as original condition”.  Requests for this professional documentation must be done prior to quoting. Please Note: There is a fee associated for each specific kit’s evaluation.  Customer supplied detailed system information is required for this evaluation.   

Mac Rak’s "Made in America," engineered repair kits do not transform an out of compliance frame or system into capacity or specification compliance. We maintain the original designed capacity only.

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Mac Rak is a pallet rack repair company providing engineered repair and protection products for warehouses. 


100 Sparks Avenue

Moberly, MO 65270


16610 W 159th St., Unit #103

Lockport, IL 60441


SAE International

Global Cold Chain Alliance


National Safety Council