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1250FL-DF Flexi-Level Joist Support Cradles
Adjustable from 12mm to 50mm (max. adjustment height can be increased with 20mm extensions )
1250FL-DF Joist Support Cradle
1250FL-DF with 20mm Extender

The Flexi-Level Cradle is a simple and functional Joist Support, with levelling, which can be used to provide a mounting system for floors and decking. The small footprint assists installation in areas with restricted space.

The new Flexi-Level Decking and Flooring Support Cradle System has been especially developed to replace and to improve upon the original Rubbertech DC1 support cradle, which forged a position as an industry leader. The new Flexi-Level cradle is now compliant with the latest building regulations in the UK and Europe.and offers the following advantages:

  • Easier and quicker to use and adjust. The adjuster ring has been redesigned to provide easy handling.
  • The thread has been changed to provide extra strength, prevent cross-threading and to allow faster adjustment.
  • There is now a provision for fixing the cradle to the joist after adjustment, if desired, to allow lifting of the joists to insert interim supports, etc, without losing the cradle position and level.
  • The new cradle now has drainage outlets in all compartments so water cannot collect and become stagnant. Effectively raises beams above the substrate surface, preventing saturation and reducing potential for rotting.
  • A new, clip-in, moulded acoustic base pad, supplied as standard with every cradle, provides cushioning and protection when used on top of membranes – it incorporates water drainage channels.
  • The height range can be increased by using one or more, optional, clip in, 20mm high extensions. The adjustability range of 12mm to 50mm can be increased to 32mm to 70mm with one extender, to 52mm to 90mm with two extenders, etc.
  • The new Flexi-Level support cradle is rated for an average maximum load of 16.3kN/m² (1,662 kgf/m²) using a minimum of 6 supports per square meter.

The adjustable cradles provide a fast and easy solution for levelling and supporting timber joists for flooring and decking on balconies, roof terraces and on any other firm surface. They are designed for use with standard 2" (44 to 48mm) wide timber joists, keeping them above the roof deck or base substrate and, importantly for exterior applications, above the drainage level of the roof or base.

The clip-in moulded base pad helps to spread and soften the impact of the imposed load. This also has acoustic properties and helps to reduce transmitted noise. The support cradles are simple to install and adjust to allow for falls and irregularities.

The support cradle is also designed for use on uneven and out of level floors. The unique design enables the soft sprung feel of a timber floor to be achieved over concrete sub bases. The cradle allows for fast installation by removing the need for levelling screeds and the slow drying times normally associated with cementitious type products.

The void created by the support cradles can provide useful space for insulation and can also be used for service runs of electrics, piping, etc.

The system is ideal for use in fast track building programs or conservatory floors.

This product is also useful for levelling garden sheds with 2" or smaller support beams underneath. An additional advantage is that the shed base is raised above the ground level thus improving ventilation and helping to prevent damp and wood rot.

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Installation
The Flexi-Level support cradle is designed for use in distributed load installations. We recommend a minimum distribution of 6 to 8 supports per square meter, with joists placed at 400mm to 500mm centres. Load capacity can be increased by using additional supports. When installing heavy, pre-built joist frameworks, take care not to overload any single point of support during initial levelling. This can be avoided by using support wedges or jacks to reduce the weight at corners until the required distribution of supports are in place and adjusted. Typically the cradles are spaced at 400mm intervals along the beams, or closer where high loads are anticipated. For high load systems we recommend the use of our 1836 LP DF or 3560 ML DF pedestal supports which are designed to withstand point loads in excess of 800 kilograms.
Technical Data
Ref No. Description Pack pcs. Pallet pcs.
1250FL-DF-30 Joist Support Cradle with Base Pad 30 3240
1250FL-EXT20 20mm Height Extension for Flexi-Level Cradle 30 -