Modulock Pedestals

Harmer Modulock Pedestals provide a versatile support solution for paving and decking applications on roof terraces, balconies and podium decks. The adjustable system accommodates a wide range of finished floor heights, enabling installers to create level surfaces with drainage, waterproofing and service installations concealed beneath. Available in multiple pedestal heights and configurations, the range can support natural stone, concrete paving slabs, porcelain tiles and decking systems. Precision-engineered for strength and stability, Modulock Pedestals help create accessibility and visual appeal in external spaces where effective drainage performance is a priority.

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  • Fully engineered raised pedestal support system
  • Suitable for paving slabs, timber decking and plywood sheet decking
  • Wide height adjustment range from 28mm to 550mm
  • Fine adjustment for both height and finished levels
  • Available with Fixed Head, Self-Levelling Head and Timber Decking Self-Levelling Head options
  • Self-levelling head compensates for gradients of up to 5°
  • Suitable for terraces, walkways, balconies and ballasted roof constructions
  • Helps achieve threshold drainage and Part M level access requirements
  • Pedestrian load rated to Class K3
  • Height-adjustable feet correct cross falls and sub-surface irregularities
  • Supports effective flat roof and deck drainage strategies
  • Protects vulnerable building interfaces where hard landscaping meets the structure
  • Channels and gratings available in Grade 304 stainless steel or galvanised mild steel
  • Available with grill or slot grate finishes
  • Channel depths available in 30mm, 40mm and 50mm options
  • Stable end-to-end installation using simple location clips
  • Factory-manufactured and site-formed irregular angles available
  • Can be installed directly onto structural decks or height-adjusted support systems
  • Roof terraces
  • Podium decks
  • Balconies
  • Walkways
  • Raised paving systems
  • Timber decking installations
  • Ballasted roof constructions
  • Commercial developments
  • Residential developments
  • Public realm projects
  • Education facilities
  • Healthcare environments
  • Retail developments
  • Refurbishment and retrofit projects
  • New-build construction projects

Harmer Modulock Raised Deck Supports are fully engineered pedestal systems designed to support paving slabs, timber decking and plywood sheet decking at variable heights above the structural deck. Offering exceptional versatility and performance, the system provides a practical solution for external floor finishes across a wide range of commercial, residential and public sector developments.

The system incorporates adjustable pedestals capable of supporting installations from 28mm to 550mm above the sub-structure. Fine adjustment mechanisms allow precise control of both height and level, helping installers accommodate uneven surfaces and achieve accurate finished results. Modulock is available with Fixed Head, Self-Levelling Head and Timber Decking Self-Levelling Head options, enabling the system to suit a variety of project requirements. Self-levelling heads automatically compensate for gradients of up to 5°, ensuring a level finished surface and maintaining effective drainage falls beneath.

Suitable for terraces, balconies, walkways and ballasted roof constructions, Modulock helps create accessible external spaces while facilitating threshold drainage and compliance with Part M level access requirements. Height-adjustable feet elevate finished surfaces and correct cross falls or irregularities in the supporting structure, improving both performance and finished appearance.

Modulock Channels form an integral part of roof and deck drainage strategies. Available in 30mm, 40mm and 50mm depths, channels and gratings can be specified in either Grade 304 stainless steel or galvanised mild steel, with grill and slot grate options available to suit project requirements. Simple location clips provide stable end-to-end installation, and factory-manufactured or site-formed angle sections accommodate directional changes.

Pedestrian load rated to Class K3, Harmer Modulock provides a durable, adaptable and low-maintenance support solution. Its combination of precise adjustment, drainage integration and installation flexibility makes it ideal for modern raised paving and decking applications.

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