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Loading Dock Resources

Reference material for identifying commercial loading dock equipment and preparing questions before a repair request. This is a reference hub, not a repair manual, blog or compliance determination.

Independent service-request website. Calls may be shared with a third-party provider. The provider confirms availability, pricing, and service terms.

Independent research

Cardboard recycling statistics

A source-preserving reference comparing U.S. recovery rates, EPA’s historical material balance, Wisconsin MRF output, Brown County throughput and the datasets behind the calculations.

Read the cardboard recycling statistics

Independent research

Corrugated flute chart

A source-labeled reference separating flute height, pitch, board caliper, flute counts, unit conversions, and the downloadable v2.1.0 source dataset.

Read the corrugated flute chart

Plain-language index

Commercial dock and door terminology

Commercial loading dock and door terms
TermPlain-language meaningOwner page link
Dock levelerInstalled bridge between a dock floor and trailer bed, usually with a moving deck and lip.Dock leveler repair
DockboardOSHA term that includes dock levelers, dock plates and bridge plates.Dock leveler repair
Dock platePortable bridge positioned between the dock and vehicle. It is not the same as an installed pit leveler.Dock leveler distinctions
LipHinged or extending part of a leveler that reaches onto the trailer bed.Dock leveler repair
PitRecess in the building floor that contains a pit-mounted leveler. Pit entry is not a floor-level observation.Dock leveler repair
Hold-downMechanical leveler component that holds the deck at a selected position.Mechanical leveler repair
Toe guardGuarding at the side of some levelers intended to limit access to a hazardous area.Dock leveler repair
Sectional doorDoor made of hinged horizontal sections that travel in tracks.Commercial overhead door repair
Torsion springCounterbalance spring mounted on a shaft. Springs and cables contain stored energy and are not owner-service items.Sectional door repair
Rolling steel doorInterlocking metal curtain that coils around a barrel above the opening.Rolling steel door repair
SlatOne interlocking horizontal piece of a rolling steel curtain.Rolling steel door repair
GuideSide channel or track that controls curtain or door travel.Rolling steel door repair
CounterbalanceSpring or weight system that offsets door weight. It can contain stored energy.Rolling steel door repair
High-speed doorPowered fabric or rigid door intended for frequent, fast opening cycles.High-speed door repair
BreakawayModel-specific feature that may let a high-speed curtain leave its guides after impact.High-speed door repair
Photo eyePresence-sensing device used by a powered door control system.High-speed controls
Trailer restraint (hook/barrier)Dock-mounted device intended to engage a trailer feature or create a barrier against movement.Trailer restraint repair
Rear impact guardTrailer structure that some hook restraints are designed to engage.Trailer restraint repair
Wheel chockDevice placed at a vehicle wheel as one means of addressing vehicle movement. Its adequacy is site-specific.Trailer movement references
Dock sealCompressible pads around a dock opening that contact the trailer.Dock seal repair
Dock shelterFrame and curtain assembly that encloses space around the trailer opening.Dock shelter repair
Bumper projectionDistance the bumper face extends from its mounting surface toward the trailer.Dock bumper repair
InterlockConfigured control relationship among equipment such as a restraint, door and leveler. The sequence varies by facility.Restraint and interlock repair
OperatorPowered drive and control assembly for a door or other equipment.Commercial door operator repair
UL 325Operator safety standard identified by its published title; detailed clause text is not represented here.Powered high-speed doors
NFPA 80Standard for fire doors and other opening protectives. The adopting authority sets the applicable edition.Rolling steel door specialist scope
Plan reviewAuthority review of submitted construction documents when required for the actual commercial alteration.Compare service scopes
Delegated inspectionState-authorized municipal commercial building inspection responsibility within the directory scope.Check location responsibility
Electrical Contractor licenseWisconsin business credential for installing, repairing or maintaining electrical wiring, subject to exemptions.Powered door scope

Authority index

Wisconsin and Green Bay references

Wisconsin and Green Bay decision references
ReferenceWhat it decidesWho to ask
City of Green BayWhether the City lists commercial door installation, including exact replacement, as permit-required.City of Green Bay inspection staff
City of Green BayCity commercial building and electrical permit process, including an electrical permit accompanying a building permit.City of Green Bay inspection staff
City of Green BayWhether a Green Bay mailing address is physically in another municipality.The physical municipality and its permit contact
City of Green BayCurrent City fee categories; it does not establish which category applies to a proposed scope.City of Green Bay inspection staff
Wisconsin DSPSCurrent Wisconsin commercial building program and adopted-code starting point.Wisconsin DSPS or the delegated authority
Wisconsin DSPSCommercial plan-review path and possible exclusions, including the minor-alteration question.The building official and Wisconsin DSPS
Wisconsin DSPSWhich municipalities have delegated commercial inspection authority.The listed municipal contact or Wisconsin DSPS
Wisconsin DSPSWhether the business credential applies to electrical wiring work, subject to exemptions.Wisconsin DSPS
Wisconsin DSPSPublic status of a Wisconsin credential.Wisconsin DSPS
Diggers HotlineExcavation notification starting point when the work actually involves excavation.Diggers Hotline and the party responsible for excavation

Scope and status

Standards and safety index

Standards, OSHA rules and technical directories
StandardScopeStatus
OSHADockboards, including load, securing, run-off protection provisions and prevention of vehicle movement.Checked
OSHADefinitions; “dockboard” includes dock levelers, dock plates and bridge plates.Checked
OSHAControl of hazardous energy during servicing and maintenance.Checked
OSHAPowered industrial trucks, including provisions addressing vehicle movement while trailers are boarded.Checked
OSHADirective recognizing a positive mechanical means that effectively prevents movement as an alternative under stated conditions; it does not require a dock lock.Checked
OSHAJurisdiction pointer: federal OSHA covers most Wisconsin private-sector workers because Wisconsin has no approved State Plan.Checked
NFPAPublished title for the standard on fire doors and other opening protectives; edition set by the adopting authority.Directory pointer
UL Standards & EngagementPublished title for the operator safety standard.Directory pointer
MHITrade-association program page for loading dock equipment standards; no detailed clauses asserted.Directory pointer
DASMATrade-association directory of door and access-system technical publications.Directory pointer

Use these references to identify equipment and prepare questions. Do not use them as instructions to enter a pit, remove guards, handle springs or cables, bypass controls, cycle faulty equipment or drop-test a fire door.

Servicing equipment can expose people to unexpected startup or stored energy. Energy control belongs to trained, authorized personnel.

Editorial method

How this site verifies sources

“Checked” means the official page and supporting passage were reviewed on the date shown in the source list. “Directory pointer” means an official landing page identifies a standard or publication, but detailed text was not inspected.

Review dates change only after a real source review. A stamp or source status is not an equipment inspection, contractor certification, legal opinion or compliance guarantee.

Authority depends on the actual address and written work scope. Ask the permit desk, DSPS, OSHA jurisdiction, fire authority or credentialing agency that applies to that question.

Commercial request

When the question is a broken dock

If commercial equipment is damaged or malfunctioning, keep clear and use the facility's procedure to take the affected position out of service pending qualified assessment. Compare the six request categories on the services hub, then call920-816-1163with the municipality, equipment type and floor-level observations.

Request review of a commercial dock problem

Call with the facility municipality, equipment label and what can be observed safely from the floor.

Independent service-request website. Calls may be shared with a third-party provider. The provider confirms availability, pricing, and service terms.

Call920-816-1163

Sources and review information

“Checked” means the source was reopened and the cited passage confirmed on the date shown. It does not mean equipment was inspected, a contractor was certified, or compliance is guaranteed. Directory pointers identify an official landing page without inspecting detailed clause text.