MESH DECKING VS TIMBER DECKING
Choosing between welded wire mesh decking and chipboard / timber decking for pallet racking and shelving. Sprinkler compliance, load capacity, hygiene, cost — the full UK buyer's guide.
Compliant Mesh
Standard Chipboard
UK Profiles
Years Experience
Decking is the unsung hero of pallet racking and longspan shelving — the platform on which everything sits, and the thing that determines whether your sprinkler insurance is valid, whether small parts roll off the back, and whether dust drops through to lower levels. UM Storage Systems supplies welded wire mesh, chipboard / timber, galvanised steel and slatted decking for every UK racking system.
This page sets out the trade-offs so you can choose the right decking for your application, your insurer and your operation.
Welded Wire Mesh Decking
Welded wire mesh decking is steel mesh framed in a steel surround that drops directly onto the beam pair. The major advantage is sprinkler-compliance: in-rack sprinklers depend on water reaching every level of stock, which means the deck must allow water to pass through. Solid chipboard does not. Mesh decking is therefore mandatory in many sprinklered warehouses.
Mesh also stops small parts from rolling off the back, lets dust drop through, and is non-combustible — important for fire risk classification and insurance. Capacities up to 1,300kg uniformly distributed per panel are standard.
Chipboard / Timber Decking
38mm chipboard is the most widely specified decking for non-sprinklered ambient warehouses. It is cheap, quick to install, and easy to cut to size. It also offers a continuous solid surface that suits hand-loaded longspan shelving better than mesh, particularly for archive boxes, paper records and small loose components that would otherwise need bins.
Limitations: combustible (problematic for sprinkler systems), absorbs moisture (problematic in cold stores and humid environments), and shorter service life than steel or mesh in heavy-use applications.
Galvanised Steel Decking
Galvanised steel decking — solid sheet or perforated — sits between mesh and timber. It offers a continuous solid surface (like timber) but is non-combustible (like mesh) and tolerates moisture far better than chipboard. The trade-off is cost: steel decking is typically 1.5-2x the price of mesh and 2-3x the price of chipboard.
Steel decking is the right choice for heavy-duty hand-loaded applications, food and pharmaceutical environments where hygiene matters, and any warehouse where chipboard's combustion risk is a deal-breaker but mesh is too open for the stock profile.
How to Choose for Your Operation
If your warehouse is sprinklered, choose mesh — almost always. If your warehouse is not sprinklered and you need a continuous solid surface, chipboard is fine. If you need a continuous solid surface and your insurer or fire engineer rules out chipboard, choose galvanised steel. UM Storage Systems will spec the right deck for your installation as part of every quote.
All three options are stock items with same-week shipping on standard sizes.
Key Features
Typical UK Applications
FREQUENTLY ASKED QUESTIONS
Is mesh decking required for sprinklered warehouses?
Almost always, yes — in-rack sprinklers depend on water reaching every level of stock, which solid chipboard prevents. Most insurers and fire engineers specify mesh decking in sprinklered installations.
Can I mix mesh and chipboard in one installation?
Yes — many warehouses use mesh in sprinklered zones and chipboard or steel elsewhere. We supply both and design the layout to your insurer's requirements.
How much weight can mesh decking hold?
Standard panels are rated 800-1,300kg uniformly distributed load per panel depending on mesh gauge and beam span. Heavier-duty options are available for industrial applications.
Is timber decking cheaper than mesh?
Yes, typically 30-40% cheaper for the same panel size. The trade-off is fire risk and sprinkler compliance — chipboard is rarely acceptable in sprinklered or insurance-sensitive installations.
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