SUB PRO & SUB ONE – modular formwork for lightweight slabs

Sub is an innovative modular permanent formwork made of recycled plastic, used for the construction of lightweight two-way slabs.

This new element has been completely redesigned by PROJECT FOR BUILDING to deliver higher performance in replacing traditional lightweight fillers such as clay blocks and polystyrene. The elements allow the creation of flat slabs thanks to conical support feet. The soffit of the slab is automatically flat and ready for plastering, without the need for suspended ceilings.

The elements are available as single or double units. The four different heights can be combined with each other to meet a wide range of structural requirements. All pieces are supplied with adjustable feet and spacers.

The SUB element is made from a 100% recycled polyolefin blend.

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DOWNLOAD THE SOFTWARE FOR CALCULATING SUB


    CONTACT

    Logo di Project For Building

    Production of innovative products for the construction industry, using recycled and regenerated plastics and complete control of the production cycle.

    For any inquiries, you can contact PROJECT FOR BUILDING by email or phone, or fill out the form and our team will get back to you.

    Transparent view of the Sub One/Sub Pro modular formwork
    New in 2024

    SUB PRO | SUB ONE

    Logo of the Sub formwork line by Project For Building
    Sub One modular formwork shown in transparency

    ADVANTAGES

    Slab thickness icon

    SLAB THICKNESS

    Reduced slab thickness with the same loads and spans.

    Sub additional floors icon

    INCREASED NUMBER OF FLOORS

    Useful height savings on each floor. Possibility to increase the number of floors within the same total building height and buildable envelope.

    Icon representing material savings with Sub and Hercules

    MATERIAL SAVINGS

    Significant reduction in concrete and reinforcing steel consumption thanks to the lower overall weight.

    Sub no-beams icon

    BEAMLESS DESIGN

    Spans up to 20 m. No beams between columns. Greater freedom in column layout—even irregular—benefiting architectural design.

    Sub slab weight reduction icon

    LIGHTWEIGHT SLAB

    Weight reduction up to 40%. Reduced deflection. Lower loads on columns and foundations.

    Icon representing column reduction with Granchio and Sub

    FEWER COLUMNS

    Reduction in number or section of columns, increasing usable floor space.

    Construction of a reinforced concrete slab with bidirectional load-bearing capacity, lightened with SUB elements, to be cast in place on suitable horizontal temporary formwork.

    The total slab thickness is ... cm, lightened according to the project with SUB recycled plastic elements, size 52x52 cm, height ... cm, with conical support foot facing downward, height ... cm.

    Supply of reinforcing steel bars with bidirectional mesh, diameter and spacing according to design loads.

    Supply and installation of SUB elements with their respective joint spacers, for the creation of orthogonal beams between voids, according to the preset thickness, ensuring perfect geometry and stability during casting.

    Sub Pro modular formwork units in a bidirectional slab
    Plastica Seconda Vita (Plastic Second Life) certification logo
    Description

    Sub is an innovative modular permanent formwork made of recycled plastic, used for the construction of lightweight two-way slabs.

    This new element has been completely redesigned by PROJECT FOR BUILDING to deliver higher performance in replacing traditional lightweight fillers such as clay blocks and polystyrene. The elements allow the creation of flat slabs thanks to conical support feet. The soffit of the slab is automatically flat and ready for plastering, without the need for suspended ceilings.

    The elements are available as single or double units. The four different heights can be combined with each other to meet a wide range of structural requirements. All pieces are supplied with adjustable feet and spacers.

    The SUB element is made from a 100% recycled polyolefin blend.

    Specifications

    Construction of a reinforced concrete slab with bidirectional load-bearing capacity, lightened with SUB elements, to be cast in place on suitable horizontal temporary formwork.

    The total slab thickness is ... cm, lightened according to the project with SUB recycled plastic elements, size 52x52 cm, height ... cm, with conical support foot facing downward, height ... cm.

    Supply of reinforcing steel bars with bidirectional mesh, diameter and spacing according to design loads.

    Supply and installation of SUB elements with their respective joint spacers, for the creation of orthogonal beams between voids, according to the preset thickness, ensuring perfect geometry and stability during casting.

    SUB catalogue

    SUB CATALOGUE

    SOFTWARE

    SOFTWARE

    The software meets the design needs of industry professionals involved in the study of bidirectional lightweight slabs using the Sub Pro / Sub One system, providing the data required to correctly carry out structural pre-dimensioning analysis of the slab.

    DOWNLOAD SOFTWARE


      BIM / CAD

      BIM / CAD

      Un modello digitale 3D che contiene tutte le informazioni sul prodotto, le sue caratteristiche fisiche e funzionali, che viene utilizzato dalla progettazione alla manutenzione dell’opera.
      Project For Building offre una libreria BIM e CAD dei suoi prodotti completa e aggiornata, a disposizione di tutti.

      LIBRERIA BIM / CAD