
Pallet Rack Shim Plates for Warehouse Racking — Monroe, MI & Nationwide
ANSI MH16.1-required leveling for pallet rack uprights on uneven concrete floors. 1/16" to 1/2" thickness, galvanized steel, custom sizes available. Ships from Monroe, MI to Southeast Michigan, Dearborn MI, Detroit, Toledo OH, and nationwide.
Get a QuotePallet Rack Shim Plates — ANSI MH16.1 Leveling for Monroe, MI & Southeast Michigan

At Pallet Storage Solutions in Monroe, MI, our Pallet Rack Shim Plates are engineered to level pallet rack uprights on uneven concrete warehouse floors — compensating for floor variations to ensure plumb alignment, balanced load distribution, and ANSI MH16.1 compliance. ANSI MH16.1 requires rack uprights be plumb within 1/8 inch over 10 feet — shim plates are the standard solution. Call 734-621-5052.
Serving Monroe, MI, Southeast Michigan, Dearborn MI, Detroit, Toledo OH, and nationwide — fast shipping, custom sizes available, no big-box distributor lead times. By using shim plates, you improve warehouse racking alignment, enhance OSHA and ANSI compliance, and extend the service life of your entire rack system.
Features & Benefits
Our pallet rack shim plates deliver ANSI MH16.1 compliance, heavy-duty durability, and fast installation for Monroe, MI, Southeast Michigan, Dearborn MI, and Toledo OH warehouse racking systems.
Precision Leveling for Uneven Floors
Eliminate rack upright lean on imperfect Monroe, MI and Southeast Michigan concrete warehouse floors — achieving ANSI MH16.1's required plumb tolerance of 1/8 inch over 10 feet.
Heavy-Duty Steel Construction
Heavy-duty carbon or galvanized steel — engineered to handle industrial-grade pallet rack column loads in busy Southeast Michigan distribution centers and Toledo OH manufacturing facilities.
Customizable Sizes & Thicknesses
1/16" to 1/2" standard thickness in 1/16" increments — custom sizes available for non-standard upright base plates and severe floor variation situations in Monroe, MI and Dearborn MI warehouses.
Fast Installation — No Specialist Required
Slide under rack upright columns during setup or adjustment — maintenance staff can level a full Monroe, MI warehouse racking system without disrupting adjacent operations.
ANSI MH16.1 & OSHA Compliance
Meets RMI/ANSI MH16.1 standards for rack plumbness and stability — supporting OSHA compliance and annual rack inspection documentation for Monroe, MI and Southeast Michigan warehouse facilities.
Protects Long-Term Rack Integrity
Prevents uneven stress on upright column steel from out-of-plumb lean — maintaining rated load capacity and extending rack service life across Southeast Michigan, Dearborn MI, and Toledo OH facilities.
Applications — Monroe, MI & Southeast Michigan Warehouse Racking
Shim plates are used across all warehouse and industrial environments where ANSI MH16.1-compliant rack leveling is required — from standard Monroe, MI distribution centers to high-bay Dearborn MI automotive facilities.
Distribution Centers
Monroe, MI and Southeast Michigan facilities with uneven or sloped concrete floors requiring ANSI MH16.1 plumb compliance before rack loading.
High-Bay Pallet Racking
Tall rack installations in Dearborn MI and Detroit warehouses where even minor out-of-plumb lean has magnified effects at height — demanding precise floor leveling.
Seismic & Heavy-Load Systems
Seismic zone rack installations where ANSI MH16.1 and the structural engineer require full base plate bearing — shim plates eliminate eccentric anchor bolt loading.
Cold Storage Environments
Southeast Michigan refrigerated and frozen warehouses where seasonal freeze-thaw concrete movement can displace previously level rack bases — requires periodic re-shimming.
Manufacturing Facilities
Monroe, MI and Toledo OH manufacturing plants where vibration from equipment adjacent to rack storage can gradually settle floor surfaces — shim plates restore plumb during annual rack inspections.
Technical Specifications

| Parameter | Details |
|---|---|
| Material | Heavy-duty carbon or galvanized steel |
| Thickness Range | 1/16" to 1/2" standard — custom options available for severe floor variation in Monroe, MI and Southeast Michigan warehouses |
| Finish | Zinc-plated or powder-coated for corrosion resistance in cold storage and high-humidity environments |
| Shape Options | Square, rectangular, or custom-cut to fit upright base plate dimensions |
| Max Stack | 6 shim plates per anchor location per ANSI MH16.1 installation guidelines |
| Load Capacity | Engineered to support industrial-grade pallet rack column loads |
| Compliance | Supports RMI/ANSI MH16.1 plumb tolerance of 1/8" over 10 ft — required for all Monroe, MI and Southeast Michigan rack installations |
Installation Guide — ANSI MH16.1 Compliant Shimming
Proper shim plate installation is critical for ANSI MH16.1 compliance and rack safety in Monroe, MI and Southeast Michigan warehouse facilities. Follow these steps:
Survey the Floor
Use a laser level to measure floor variation at each rack upright base plate location across the full rack footprint — identify the high reference point and measure the gap at each upright location.
Clean the Anchor Zone
Remove all debris, oil, and loose concrete from the area under each rack upright — clean surfaces ensure full shim plate bearing contact and prevent shim movement under load.
Position the Base Plate
Place the upright footplate over the marked anchor location — ensure anchor bolt holes align with pre-drilled concrete anchor holes before sliding shims into position.
Insert Shim Plates
Stack shim plates (maximum 6 per anchor per ANSI MH16.1) under the low side of the base plate to achieve plumb within 1/8 inch over 10 feet — start with the thickest plate at the bottom of the stack.
Secure Anchor Bolts
Torque wedge anchors to manufacturer specifications — e.g., 75 ft-lbs for 1/2" bolts in 3,000 PSI concrete — to lock shim stack in place before loading the rack.
Verify Plumb & Document
Re-check upright alignment with a 6-foot level before loading — document leveling measurements and shim stack specifications for OSHA compliance records and future annual rack inspections.
Maintenance & Safety
Keep shim plates in ANSI MH16.1-compliant condition with routine inspections — essential for Monroe, MI, Southeast Michigan, and Toledo OH warehouse compliance programs.
Periodic Inspections
Inspect shim stacks during annual OSHA-required rack audits — verify shims are still in position, free of corrosion, and that uprights remain plumb within ANSI MH16.1 tolerance.
Replace Damaged Plates
Replace corroded, cracked, or displaced shim plates immediately — a missing or damaged shim plate can allow an upright to go out of ANSI plumb tolerance, requiring OSHA-mandated rack shutdown until corrected.
Keep Leveling Documentation
Record laser level measurements, shim stack thickness, and anchor bolt torque for each upright at installation — these records support OSHA compliance audits and annual rack inspections across Monroe, MI and Southeast Michigan facilities.
Follow ANSI MH16.1 Guidelines
Maximum 6 shim plates per anchor location — never exceed this limit. If required shim height exceeds 6-plate maximum, concrete leveling or grout pads must be used. Contact 734-621-5052 for guidance.
Compatibility — Southeast Michigan & Nationwide Rack Systems
Pallet Storage Solutions shim plates are compatible with most major pallet racking systems used across Monroe, MI, Southeast Michigan, Dearborn MI, Detroit, and Toledo OH warehouses:

Selective Pallet Racking
The most common rack type in Southeast Michigan warehouses — standard base plate leveling for teardrop and structural upright profiles.

Drive-In / Drive-Through Racks
High-density storage in Monroe, MI and Detroit cold storage — galvanized shim plates for high-humidity environments.

Cantilever Racks
Long-load stability for Dearborn MI and Toledo OH automotive and lumber facilities — wide base plate shimming prevents cantilever arm lean.

Push-Back and Flow Racks
Dynamic load distribution systems in Southeast Michigan distribution centers — critical that all uprights are plumb for correct cart and rail alignment.

Structural Uprights
Heavy-duty structural column base fitting for Monroe, MI and Toledo OH high-load warehouse racking — custom shim sizes available for oversized base plates.

Roll-Formed Uprights
Versatile compatibility with teardrop and slotted roll-formed upright profiles — the most common upright type in Southeast Michigan and Dearborn MI warehouse racking.
Pro Tip: Contact Pallet Storage Solutions at 734-621-5052 — our Monroe, MI experts can recommend the correct shim plate size and thickness for your specific rack base plate and floor variation conditions across Southeast Michigan, Dearborn MI, Detroit, and Toledo OH.
Safety & ANSI MH16.1 Compliance
All Pallet Storage Solutions shim plates support RMI/ANSI MH16.1 standards for rack installation and seismic safety — keeping Monroe, MI and Southeast Michigan warehouse racking compliant and OSHA inspection-ready. By keeping racks level and stable, shim plates reduce the risk of:
Rack Collapse or Tipping
Out-of-plumb uprights in Monroe, MI and Southeast Michigan warehouses carry overturn risk under forklift impact — shim plates restore ANSI MH16.1 plumb compliance before loading.
Uneven Load Distribution
Unlevel uprights shift column load to one side of the base plate, overstressing one anchor bolt while understressing the other — shim plates restore balanced anchor bolt loading.
Anchor Bolt Fatigue
Eccentric loading from unlevel base plates accelerates anchor bolt fatigue and concrete stress — shim plates eliminate eccentric loading and protect against premature anchor failure.
What Our Clients Say
"We had serious floor unevenness in our Southeast Michigan warehouse, and Pallet Storage Solutions provided perfectly sized shim plates from Monroe, MI that stabilized our entire racking system — ANSI MH16.1 compliant on first inspection."
— Steve L., Warehouse Manager, Southeast Michigan"Excellent quality and fast delivery from Monroe, MI. The shim plates made installation easy and brought our pallet racking into ANSI MH16.1 plumb compliance — OSHA inspection passed without any rack alignment citations."
— Karen H., Logistics Coordinator, Toledo, OHFrequently Asked Questions About Pallet Rack Shim Plates
Why are shim plates necessary for pallet racks?
Can I stack multiple shim plates under one rack upright?
Are shim plates compatible with seismic-rated rack installations?
How do I determine the correct shim plate thickness?
Do shim plates come with anchor bolts?
Level Your Warehouse Racks — Monroe, MI & Southeast Michigan
ANSI MH16.1 requires rack uprights be plumb within 1/8 inch over 10 feet — shim plates are the standard leveling solution. Pallet Storage Solutions in Monroe, MI stocks the full range for Southeast Michigan, Dearborn MI, Detroit, Toledo OH, and nationwide delivery. Custom sizes available.
Call: (734) 621-5052 Get a Free Quote