Screed & Concrete Tools

Tools designed for levelling and laying liquid screeds and self-compacting concrete on site. Our range of self levelling screed tools and concrete tools includes aluminium screed bars, concrete tamp bars, screed expansion joints, screed levelling tripods and other essential concrete site equipment for accurate, consistent results.

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Find our trusted tools in stores across the UK. We work with a growing network of tool retailers including screed, concrete & drainage tool specialists and DIY retailers who stock our range.

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FAQs about Metex Screed & Concrete Tools

What is a dapple bar used for in liquid screed?

A dapple bar is used to dapple freshly poured liquid screed, which releases trapped air and helps the screed settle to a flat, level finish. The bar is pushed through the screed in two directions at right angles, breaking up the surface and closing any voids. Dappling should be done straight after the pour, while the screed is still fully fluid.

What is the difference between an aluminium and a steel dapple bar?

Aluminium dapple bars are designed for liquid screed, while mild steel dapple bars are built for flowing concrete. Aluminium is lighter, which reduces fatigue when dappling large floor areas. Flowing concrete is heavier and stiffer than liquid screed, so a steel bar gives the extra weight and rigidity needed to work it. Metex aluminium dapple bars come in 900mm, 1500mm, 2000mm and 3000mm lengths, with the 900mm single handle bar best suited to edges, corners and smaller rooms.

How do you set levels for a liquid screed floor?

Levels for liquid screed are set using screed levelling tripods placed across the floor and adjusted to the finished screed height with a laser level. The tripods act as height markers during the pour, so the screed can be brought up to a consistent depth across the whole area. Stainless steel tripods will not corrode, while zinc plated mild steel tripods are a more economical option.

How do you flow test liquid screed?

A flow test is carried out by filling a flow cone placed on a flat flow plate, then lifting the cone and measuring the diameter the screed spreads to. The result shows whether the mix has the right consistency before it is pumped. The measured diameter should be checked against the flow range specified by the screed manufacturer, and the test is usually repeated on each delivery.

Does liquid screed need control joints?

Yes, liquid screed usually needs control joints at doorways, at changes in floor shape (like in L-shaped rooms for example), and between separate underfloor heating zones. Control joints allow the screed to move as it dries and heats up, which helps prevent random cracking. Joint spacing and bay sizes should follow the screed manufacturer’s guidance.