Thanks to its innovative material and well-designed system structure, DUO is ideal for the construction of in-situ concrete walls – without the need for heavy equipment or complicated assembly.

Do more. With DUO.

DUO is a lightweight handset formwork system that lets 2–3 workers form walls, slabs, columns, and foundations. 

No crane. No timber. A simpler formwork system built to reduce labor costs and speed up every pour — available locally from our PERI yard.

Get DUO pricing
Still Using Timber Formwork?

Timber formwork is costing you more than you think

Every project you run with traditional forms carries hidden costs most GCs never add up:

✕ 4–5 workers minimum to move and set panels — your best guys stuck doing grunt work

✕ Skilled carpenters required, at skilled-carpenter rates, for every single form

✕ Slow strip cycles that push your pour schedule by days, not hours

✕ Panels that warp, split, and get thrown out after minimal uses

✕ Zero consistency — every form is slightly different, every time

DUO is the universal formwork system for walls, slabs, columns and foundations.

DUO: A Faster, Simpler Way to Form

Developed by PERI, DUO formwork replaces timber forming with a modular polymer system your crew can set in a fraction of the time.

✓ Any panel under 25 kg - one person carries and positions it, no crane needed

✓ Clip-together connector system - no hammers, no special tools, no carpentry skills required

✓ Forms walls, slabs, columns, and foundations with the same set of panels

✓ Up to 300 reuses per panel

✓ Damaged formlining? Replace it on-site in minutes

One system. Every concrete element on your site.

  • 1
    &lt;p&gt;Fast assembly for in-situ concrete walls. Lightweight panels, near tool-free connections.&lt;/p&gt;<br/>
    &lt;p&gt;Fast assembly for in-situ concrete walls. Lightweight panels, near tool-free connections.&lt;/p&gt;<br/>

    Walls

    Fast assembly for in-situ concrete walls. Lightweight panels, near tool-free connections.

  • 2
    &lt;p&gt;Crane-free overhead forming with consistent concrete finish. Early stripping possible.&lt;/p&gt;<br/>
    &lt;p&gt;Crane-free overhead forming with consistent concrete finish. Early stripping possible.&lt;/p&gt;<br/>

    Slabs

    Crane-free overhead forming with consistent concrete finish. Early stripping possible.

  • 3
    &lt;p&gt;Rectangular and square cross-sections in minutes by combining standard DUO elements.&lt;/p&gt;<br/>
    &lt;p&gt;Rectangular and square cross-sections in minutes by combining standard DUO elements.&lt;/p&gt;<br/>

    Columns

    Rectangular and square cross-sections in minutes by combining standard DUO elements.

  • 4
    &lt;p&gt;Adjust directly on-site. Move without equipment. Ideal for tight access conditions.&lt;/p&gt;<br/>
    &lt;p&gt;Adjust directly on-site. Move without equipment. Ideal for tight access conditions.&lt;/p&gt;<br/>

    Foundations

    Adjust directly on-site. Move without equipment. Ideal for tight access conditions.

DUO vs. Timber Formwork

Here's why you should invest in DUO

When you invest in DUO, you choose faster assembly, greater cost savings over time and safer forming operations for your workers.

  • 74

    % faster assembly than timber.

  • 74

    % reduction in labor costs.

  • Up to 100

    Panel reuses before replacement.

DUO in action

See what our customers have to say...
  • Mario Cirio General Foreman, McCarthy Concrete
    Mario Cirio General Foreman, McCarthy Concrete

    Mario Cirio

    General Foreman | McCarthy Building Companies
    Building Construction

    The main advantages of DUO are the lightweight, the strength, the rate of pour they will withstand, the engineering - you can use the outside corners for inside corners and vice versa - it's a very easy system to work with.

    View project

  • Robbie Boccabello

    Vice President | Co-Owner, Bocci Group Inc.
    Residential Construction

    Our project was one of the test-sites for DUO in the US, so we have been using the system for a few months already and are really happy. You can’t beat how simple and light it is.

    View project

  • Robert DiPietro

    General Superintendent | Swinerton

    My #1 priority is to keep these guys safe. Due to the weight of the system and hand maneuverability, it allows us to eliminate equipment, and the guys can safely move the product.

    View project

Let's get the conversation started.