Warehouse Fieldbook

Mezzanines · Decking options & costs

Mezzanine Decking Options & Costs

The cheapest mezzanine deck material is not necessarily the cheapest elevated-floor system. Resin panels, corrugated steel, open bar grating, open steel planking, diamond-grip surfaces and concrete impose different dead loads, framing demands, installation work, wheel-performance limits, fire-protection interactions and maintenance. Compare the complete designed system at the required operating load, then normalize real quotes—not catalog surface prices.

Warehouse mezzanine displaying different industrial decking surfaces including steel grating and panel decking
Direct answer

Mezzanine decking cost depends on the complete elevated-floor system—not just the surface material.

Current Cogan guidance lists six industrial mezzanine flooring options: resin board, corrugated decking, open bar grating, galvanized open steel planking, diamond-grip flooring and concrete. The correct option depends on traffic, required loads, openness, slip conditions and the structural/fire system around it.

Deck-selection map

Choose the deck from the traffic—not from the sample board.

The finished surface is only one layer of the elevated-floor system. Start with wheel loads, point loads, slip/wet exposure, fire-protection strategy and future change; then compare structure + deck + installation cost.

Resin / engineered panelSmooth rolling surface with low dead load.

Strong fit for pallet jacks, carts and certain AMR/AGV systems when the complete panel + B-deck system is rated for the wheel load.

Cost lens: panel + B-deck + fasteners + lighter framing opportunity
Corrugated steel deckOften the structural base layer—not automatically the final traffic surface.

Cogan describes B-deck as the typical base under many finished mezzanine-floor systems.

Cost lens: gauge + span + finish layer + support spacing
Open bar gratingOpen surface for light, air and sprinkler-water passage.

Useful where openness matters, but walking/rolling ergonomics and the actual sprinkler design still need review.

Cost lens: grating + clips + framing + operational suitability
Open steel plankingGalvanized open deck with more defined walking surface.

Cogan positions it as a corrosion-resistant open option that preserves openness between levels.

Cost lens: planks + fastening + corrosion environment + span
Diamond-grip steelSlip-resistant industrial surface where demanding traffic needs traction.

Useful when slip resistance is a primary operating requirement, subject to cleaning, wheel compatibility and engineered support.

Cost lens: plate/plank system + support + field cuts + finish
ConcreteHeavy, durable monolithic deck with major structural consequences.

Concrete can support demanding applications but adds dead load, wet-trade work, curing and potentially larger framing/footings.

Cost lens: concrete + metal deck/form + reinforcing + framing + footings + install
Selection ruleCompare the complete elevated-floor system at the required load and performance—not the price of one square foot of surface material.

The six current Cogan mezzanine flooring options

Cogan's current product page lists:

  • resin board — standard sheet size 4 × 8 ft / 32 ft²;
  • corrugated decking;
  • open bar grating;
  • open steel planking;
  • diamond-grip flooring;
  • concrete — listed at 4-in thickness in Cogan's system.

Its current warehouse-mezzanine planning guide summarizes the intended use:

  • resin board for smooth pallet-jack travel;
  • corrugated/B-deck as the typical structural base under many finished floors;
  • open bar grating / open steel planking to preserve openness between levels;
  • diamond grip where slip resistance is important;
  • concrete for a heavy-duty monolithic deck.
These are manufacturer product categories and application descriptions—not a universal ranking that makes one surface “best” for every warehouse.

Do not confuse B-deck with the complete finished floor

Cogan says warehouse decks are typically corrugated steel decking (B-deck) topped with a finished surface.

That means a quote labeled “steel decking” can refer to:

  • structural corrugated deck only;
  • corrugated deck + engineered/resin panel;
  • steel planking;
  • floor plate;
  • another designed steel-floor assembly.

Before comparing $/ft², identify the exact deck assembly.

Four cost layers matter more than the catalog price

Layer 01 · SurfaceThe visible/traffic layer.

Resin panel, grating, planking, diamond-grip or concrete material and its fastening/placement work.

Layer 02 · SupportB-deck, joists and beam spacing.

Deck capacity and wheel/point loads determine support spacing and framing demand.

Layer 03 · StructureColumns, reactions and footings.

Added dead load can require larger framing and increase concentrated reactions on the slab/foundation.

Layer 04 · Installation / tradesField labor, rigging, concrete, fire and MEP coordination.

Wet trades, curing, field cuts, penetrations and sprinkler/light changes can materially alter all-in cost.

Use system cost per square foot

Comparable deck-system cost(deck material + support/framing delta + footing delta + installation + project-specific trade effects) ÷ mezzanine area

This is a better procurement metric than:

material-only $/ft².

The Warehouse Mezzanine Cost Per Square Foot calculator can normalize the final complete project after deck quotes are received.

Resin / engineered panel decking

Cogan positions resin board as:

the smooth-rolling choice under pallet jacks.

Current ResinDek products show why system design matters.

ResinDek MD is currently specified as:

  • 3/4-in panel thickness;
  • installed over specified B-deck systems;
  • rated for rolling pallet-jack and AMR/AGV applications within product-specific system limits.

Its current MD page lists:

  • pallet-jack rolling loads up to 2,500 lb with 20-ga B-deck;
  • up to 3,500 lb with 18-ga B-deck;
  • AMR/AGV rolling loads up to 2,000 lb with 20-ga B-deck;
  • up to 3,000 lb with 18-ga B-deck.
System-rating boundary

Those are current ResinDek MD manufacturer limits for specified assemblies, not general capacities for all engineered-wood/resin panels. Wheel diameter, wheel material, panel grade, B-deck gauge/span and installation details matter. Use the selected manufacturer's engineered system data.

Rolling wheel load is different from uniformly distributed load

A platform can have adequate PSF capacity and still need a different deck system for:

  • small hard pallet-jack wheels;
  • carts;
  • AMRs;
  • AGVs;
  • rack/post point loads.

Cogan's current design guide separates:

  • UDL — uniformly distributed load;
  • PL — point load;
  • PJL — pallet-jack/moving wheel load.

Specify the real traffic, not only the mezzanine live-load PSF.

Deck selection by traffic

Foot traffic / light picking

Many systems can work; comfort, slip and maintenance become important.

The selection may prioritize surface feel, cleaning, openness, sound and long-term changes more than extreme wheel load.

Compareresin · grating · planking · steel surfaces
Pallet jacks / carts

Smooth rolling and localized wheel load become primary.

Cogan recommends resin board overlay for smooth pallet-jack travel; verify the complete surface/B-deck system for the actual wheel load.

Strong screening questionwhat is the maximum loaded wheel condition?
AMR / AGV

Levelness, joints, wear and wheel-load compatibility matter.

ResinDek currently markets flooring specifically for robotic fleets and publishes product/system-specific rolling-load limits.

Do not assume“smooth floor” automatically means robot-compatible
Heavy point loads

Machinery or rack posts need localized structural design.

Concrete may be attractive for some heavy-duty applications, but deck, framing and support must be designed for the actual point load.

Engineering inputfootprint + load + dynamic effects if applicable

Concrete has a major dead-load penalty

Steele Solutions' current concrete-vs-steel platform comparison reports:

  • a minimum 3.5-in concrete deck at about 27 PSF of dead load;
  • thicker concrete systems potentially much heavier;
  • steel deck systems in its comparison at about 5–10 PSF.

Steele says the extra concrete weight can:

  • increase framing size;
  • increase seismic forces;
  • increase column point loads on the slab.
Do not combine Cogan's 4-in concrete product description with Steele's 3.5-in minimum-system comparison as though they are the same design. They are separate manufacturer references illustrating why thickness/dead load must be specified.

Concrete cost propagates beyond the concrete line item

The cost chain can be concrete weight → larger / closer framing → larger column reactions → more demanding slab / footing design → heavier erection / more labor → higher all-in platform cost.

This is why deck-only price is often the wrong comparison.

Concrete also adds installation sequence and curing

Steele Solutions currently contrasts factory-finished steel/panel systems with concrete requiring:

  • screeding/leveling work;
  • curing time;
  • additional coordination/equipment.

Its current article cites 10 days of curing time in its comparison.

Treat that as Steele's published comparison context, not a universal required cure/commissioning period for every concrete mix and project.

The project structural/concrete specifications control.

A current manufacturer-hosted cost study shows why system cost matters

Published engineering study · not a 2026 market quoteThree hypothetical 225 × 225-ft elevated work platforms, all designed for 125-PSF live load.
Study optionResinDek + cold-formed C-channelConcrete + cold-formed C-channelConcrete + hot-rolled wide flange
Interior footings$71,680$84,000$84,000
Columns / joists / metal floor deck material$747,454$992,550$992,550
Structural installation$194,400$201,000$280,000
Finish deck material + installation$114,645$202,500$202,500
Total cost$1,144,738$1,496,358$1,576,264
Cost / ft² excluding freight$22.29$29.24$29.81

ResinDek currently hosts the study and says:

it was prepared by:

Matt Rescorla, P.E. of Rescorla Engineering.

The modeled platforms were:

  • 225 × 225 ft;
  • 125-PSF live load;
  • specific framing configurations;
  • specific concrete and panel assumptions.

The study found the two concrete alternatives had higher system-level cost per ft² than the ResinDek alternative.

Cost-study boundary

Do not use $22.29, $29.24 or $29.81/ft² as current 2026 bid rates. They are results from a specific hypothetical engineering cost comparison currently hosted by a flooring manufacturer. Geography, steel/concrete prices, labor, project size, load, framing, freight and site conditions can change every line.

The study is useful for one reason: the deck changed the steel and footing cost too

In the published comparison the concrete alternatives did not merely have a higher finish-floor line.

They also carried:

  • higher structural-steel material cost;
  • higher footing cost;
  • in one option, materially higher structural installation cost.

That is exactly why the right comparison is complete platform system.

Open bar grating

Cogan's current mezzanine guide says open bar grating:

keeps:

  • light;
  • sprinkler coverage

open between levels.

That can make grating attractive where:

  • air movement matters;
  • light transmission matters;
  • water passage through the floor is useful to the fire-protection strategy.

It can be less attractive where:

  • small wheels need smooth travel;
  • dropped small parts are a concern;
  • noise/vibration/foot comfort matter;
  • process debris can fall through.

Open grating does not automatically eliminate sprinklers below

NFPA's Fire Protection Research Foundation has studied elevated walkways / open-grate mezzanines specifically because sprinkler performance around these obstructions requires technical analysis.

Therefore do not turn “open grating allows sprinkler water through” into “no sprinklers are required below.”

Fire-protection design depends on:

  • adopted fire/building code;
  • NFPA standard/edition;
  • deck openness;
  • obstruction geometry;
  • storage commodity/configuration;
  • sprinkler design;
  • AHJ requirements.

Open steel planking

Cogan currently lists galvanized open steel planking as another open-deck option.

Compared with bar grating the decision can involve:

  • walking surface geometry;
  • open area;
  • corrosion environment;
  • span/support pattern;
  • fastening;
  • rolling traffic;
  • cleaning.

Do not compare “open deck” generically. Compare the actual manufacturer's panel/plank/grating geometry and rated system.

Diamond-grip steel

Cogan's current cost guide positions diamond grip for slip resistance in demanding traffic.

Use-case questions include:

  • dry vs wet/contaminated process;
  • pedestrian-only vs wheels;
  • cleaning method;
  • debris capture;
  • shoe/boot traffic;
  • required corrosion resistance.

A high-traction surface can be excellent for people and poor for certain small hard wheels.

Test the actual traffic.

OSHA's floor rule is performance-based

OSHA 1910.22 currently requires:

  • walking-working surfaces to be kept clean, orderly and sanitary;
  • floors to be kept clean and, to the extent feasible, dry;
  • walking-working surfaces to support the maximum intended load;
  • regular/as-needed inspection and maintenance in safe condition;
  • safe access/egress.

OSHA defines maximum intended load broadly to include

employees, equipment, vehicles, tools, materials and other loads reasonably anticipated on the surface at one time.

So deck selection is not only a material choice.

It becomes an operating-load and maintenance requirement.

ANSI MH28.3-2022 explicitly allows multiple flooring material types

MHI/SMA's current ANSI MH28.3-2022 applies to industrial steel work platforms within its scope.

MHI's current listing states flooring may include:

  • concrete;
  • steel;
  • engineered wood products;
  • other structural or non-structural flooring elements.

The implication the floor is part of the designed platform system, not an interchangeable decorative finish.

Dead load consumes structural capacity

Deck self-weight is dead load. Steele Solutions' current platform-loading guidance describes dead load as: the self-weight of the structure and permanently attached components.

If deck dead load increases the engineered platform must carry that weight before people/product/equipment live load is added.

Deck thickness can consume valuable vertical clearance

Steele's current concrete-vs-steel comparison says concrete systems can be physically thicker than lighter steel/panel assemblies.

In a tight building one or two inches can matter around:

  • conveyor clearance;
  • headroom below;
  • equipment clearance;
  • services above.

Use the How to Use Warehouse Clear Height guide to test the vertical envelope.

Future modification cost differs by deck

PanelsIndividual sections can be more replaceable/reconfigurable.

Steele Solutions highlights panel replacement and future modification as an advantage of lighter steel/panel platform systems.

Open steel systemsSections can be mechanically fastened and locally altered subject to engineering.

Openings and changes still need structural/fire/guarding review; “bolted” does not mean arbitrary field modification.

ConcreteCutting/removal can be materially more disruptive.

New penetrations or major layout changes may require demolition, reinforcing and structural review rather than simple panel replacement.

Automation can make floor quality more valuable than floor strength alone

AMRs/AGVs care about:

  • surface flatness/levelness;
  • joints;
  • wear;
  • rolling resistance;
  • traction;
  • wheel-load capacity.

Steele Solutions says its steel/panel platform systems can provide: more consistent floor flatness, levelness and surface roughness than the concrete systems in its comparison.

ResinDek currently markets MD flooring specifically for pallet-jack and robotic-fleet traffic.

Those are manufacturer product claims. For automation require the robot/system provider to confirm:

  • surface requirements;
  • joint tolerances;
  • wheel loads;
  • traction;
  • maintenance acceptance.

Deck selection can affect installation schedule

The Warehouse Mezzanine Installation Cost guide explains why the same platform area does not imply identical installation cost.

Deck type can add:

  • panel handling;
  • clips/fasteners;
  • field cuts;
  • concrete trade;
  • reinforcement;
  • placement/finishing;
  • curing;
  • temporary protection.

Compare installed system, not raw material.

Deck choice can affect mezzanine ROI

The Warehouse Mezzanine ROI & Payback model uses all-in CAPEX.

A more expensive deck can still produce better economics if it materially improves:

  • robot performance;
  • pallet-jack productivity;
  • maintenance;
  • future changes;
  • operational availability.

But monetize those advantages only when they create measurable cash benefit.

Structural vs rack-supported systems can use the same deck categories differently

The Structural vs Rack-Supported Mezzanine guide separates:

  • free-standing structural work platforms;
  • rack-supported pick modules/platforms.

In either:

the deck must be designed around:

  • support spacing;
  • load path;
  • traffic;
  • openings;
  • fire-protection strategy;
  • future use.

Do not transplant a deck specification from one structural system to another without engineering verification.

How to compare decking quotes

Ask each bidder for:

  • surface material/product;
  • thickness;
  • finish;
  • support/B-deck gauge;
  • support spacing/span;
  • uniform load;
  • point load;
  • rolling wheel load;
  • actual wheel assumptions where relevant;
  • dead load;
  • fasteners/clips;
  • edge details;
  • penetrations;
  • fire rating/classification information as applicable;
  • installation;
  • freight;
  • warranty;
  • repair/replacement method.

Do not use a deck material's marketing name as the design specification

Specify performance. For example:

  • maximum loaded pallet-jack condition;
  • AMR make/model / wheel load;
  • rack/post point loads;
  • wet/dry exposure;
  • required openness;
  • surface-cleaning process;
  • expected service/repair method.

Then let the engineered deck assembly satisfy those conditions.

Decking selection audit

Before approving the floor systemDefine traffic, load, support, fire interface and total installed cost.
  1. Mezzanine structural system.
  2. Actual deck footprint.
  3. Deck product / material.
  4. Finished surface.
  5. Corrugated deck / substrate type.
  6. Deck/substrate gauge or thickness.
  7. Support span / joist spacing.
  8. Deck dead load.
  9. Uniform live load.
  10. Point loads.
  11. Pallet-jack wheel/load condition.
  12. Cart wheel/load condition.
  13. AMR/AGV make/model and loaded condition.
  14. Rack/post loads on deck.
  15. Vibration/dynamic loads where applicable.
  16. Surface flatness/levelness requirements.
  17. Slip/traction requirement.
  18. Wet/chemical/corrosion exposure.
  19. Cleaning method.
  20. Noise/ergonomics constraints.
  21. Open-deck requirement.
  22. Small-part/drop-through risk.
  23. Fire-protection analysis.
  24. Sprinkler/obstruction review.
  25. Lighting implications.
  26. Penetrations/openings.
  27. Edge details.
  28. Repair/replacement strategy.
  29. Future conveyor/automation changes.
  30. Deck material cost.
  31. Structural framing delta.
  32. Footing/slab delta.
  33. Installation delta.
  34. Fire/MEP trade delta.
  35. Complete system $/ft².
  36. Lifecycle/maintenance implications.
  37. Approved engineering documentation.

Why this article does not add another calculator

Deck cost is not surface price × area. It depends on the structural response to the selected floor.

A calculator would require:

  • steel framing redesign;
  • column reactions;
  • footing changes;
  • trade pricing;
  • local labor/material pricing.

Those inputs are project-specific. Article 80 already accepts the actual complete structure/deck quote and other project costs.

Therefore this article adds a deck-selection framework, not another false-precision estimator.

The decision rule

Select mezzanine decking from the actual traffic and load first. Identify uniform, point and wheel loads; specify the finished surface and substrate; quantify dead load; check structural framing, slab/footing and installation effects; then coordinate fire protection, lighting and future automation. Compare complete system cost per square foot using real engineered quotes. Resin/panel, open steel and concrete floors can each be the right answer—the cheapest raw material is not automatically the lowest-cost or best-performing mezzanine floor.

Frequently asked questions

What are the main warehouse mezzanine decking options?

Cogan currently lists resin board, corrugated decking, open bar grating, galvanized open steel planking, diamond-grip flooring and concrete. Other manufacturers can offer additional proprietary assemblies.

What is the cheapest mezzanine decking?

There is no universally cheapest complete system. Raw deck price can be outweighed by support spacing, structural steel, footings, installation, fire-protection work and future maintenance/modification.

What is the best mezzanine floor for pallet jacks?

Cogan currently recommends resin board overlay as a smooth rolling surface for pallet-jack traffic. The complete floor system still must be rated for the actual moving wheel loads.

Can AMRs run on mezzanine decking?

Yes on appropriately designed systems. ResinDek currently publishes panel/B-deck combinations for AMR/AGV rolling loads, but robot model, wheel load, surface tolerance and support system must be verified for the project.

Is concrete mezzanine decking stronger?

Concrete can support demanding heavy-duty applications, but “stronger” is not a useful generic comparison. Each system is engineered for required loads, spans, reinforcement/framing and support conditions.

How heavy is concrete mezzanine decking?

Steele Solutions currently cites about 27 PSF of dead load for a minimum 3.5-in concrete deck in its comparison, versus roughly 5–10 PSF for its steel-deck systems. Actual project dead load depends on the specified assembly.

Does concrete decking cost more?

It can because the cost can include not only concrete material/installation but also heavier framing, larger reactions/footings and more erection work. A manufacturer-hosted engineering study currently shows higher system cost for two modeled concrete alternatives, but those study prices are not current market bids.

Does bar grating eliminate sprinklers below a mezzanine?

Do not assume that. Open grating allows water/light passage, but NFPA research confirms elevated/open-grate walkways create sprinkler-obstruction questions that require project-specific fire-protection analysis.

Is corrugated steel deck the finished mezzanine floor?

Often it is the structural substrate. Cogan says warehouse mezzanine decks are typically corrugated B-deck topped with a finished surface, although the exact system depends on the application.

Is diamond-grip flooring good for pallet jacks?

It is selected primarily for slip resistance in demanding traffic. Whether it is appropriate for pallet jacks or small hard wheels depends on the actual product geometry, wheel loads and rolling-performance requirements.

How should I compare mezzanine deck quotes?

Normalize surface, substrate, support spacing, load ratings, dead load, framing impact, installation, fire/MEP effects, warranty and repair strategy. Then compare complete installed system cost rather than surface-material price.

Does OSHA specify which mezzanine floor material to use?

OSHA's general-industry walking-working-surface rule is performance-based: the surface must support its maximum intended load and be maintained in a safe condition. It does not select resin, steel, grating or concrete for the designer.

Sources and methodology

Warehouse Fieldbook uses current primary manufacturer and industry-standard sources to define deck categories and technical trade-offs, while refusing to turn case-study prices into a 2026 market-price table. Cogan's current flooring and warehouse-mezzanine pages supply its six deck categories, the B-deck base concept, smooth pallet-jack application for resin board, open-deck applications, diamond-grip positioning and 4-in concrete option. Steele Solutions supplies the current concrete-vs-steel platform comparison used for 27-PSF minimum concrete dead load, 5–10-PSF steel-system dead load and installation/structural propagation discussion. ResinDek's current MD page supplies product-specific rolling-load examples. ResinDek's manufacturer-hosted Rescorla Engineering comparison supplies the hypothetical 225 × 225-ft / 125-PSF platform cost table; the article explicitly labels those numbers as study results rather than current quotes. MHI/SMA's ANSI MH28.3-2022 listing confirms industrial steel work-platform flooring can include concrete, steel and engineered wood products. OSHA 1910.22 supplies the maximum-intended-load and walking-working-surface maintenance boundaries. NFPA Fire Protection Research Foundation material is used only to establish that open-grate/elevated walkway arrangements still require sprinkler-obstruction analysis.