Profile / Material and support For the trade

Solid vs hollow decking profiles.

Compare solid, round-hollow and square-hollow composite sections on the actual product. Profile geometry affects mass, edge details and the approved installation system.

Five wood-look decking finish samples in brown, taupe and natural oak tones
Generated finish reference · polymer, profile and colour approved by programme
Product knowledge01 / Understand

The section matters more than the label.

A solid decking profile and a hollow profile distribute material differently. Round and square cavities are also distinct arrangements, with different wall and web geometries.

Profile selection should account for use, support conditions, fixing, handling and end treatment. Hollow does not automatically mean inadequate, and solid does not establish a universal span or load rating.

For a distributor programme, compare actual mass, usable coverage, carton or pallet packing and the complete accessory requirement. Evaluate finished profiles with the relevant test and installation data.

01

Make comparisons like for like

Align material formulation, dimensions, surface construction and intended use before comparing profile options.

02

Resolve the visible ends

A hollow section may need end caps, fascia or a different perimeter detail. Include those components in the commercial calculation.

The buying decision02 / Specify

Specify the whole product.

A useful quotation starts with the construction and the intended market. These are the decisions we work through with your product team.

Prepare your specification ↗
Solid vs hollow decking profiles: commercial specification
DecisionWhat to define
SolidDefined material throughout the profile; confirm mass and support guidance.
Round-hollowCircular cavities with specified wall and web thicknesses.
Square-hollowRectangular cavity layout with its own support and edge detail.
SystemApproved joist spacing, fixing method, movement gaps and end treatment.

Questions from product teams

A clearer
specification.

Which profile is best?

The appropriate choice depends on the specific product and application. Compare evidence and system requirements rather than treating one section label as universally better.

Can profile drawings be omitted if overall dimensions match?

No. Internal geometry is a significant part of the construction and can change mass, behaviour and installation details.

From product knowledge to a commercial range

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