Span App

Our suppliers at SMD have developed a unique new mobile phone app for architects, designers and engineers – ‘SMD Elements® Span Check’ App. The free-to-download app is a calculation tool enabling users run simple span checks on our range of floor deck profiles.


The easy-to-use app, believed to be the only type of its kind on the market, helps users to understand the options available for each product and what can be achieved with different types of specification.

The App benefits from a simple menu along the bottom of the screen allowing users to navigate through the app easily and quickly.

Mobile is king

Everyone works from a mobile these days, and because time is often of the essence, the app is set to prove invaluable for designers and engineers in allowing them to run checks quickly.

As well as the main ‘Span Check’ tool for determining maximum deck spans, the new app features written technical help and a form for submitting queries, links to downloadable PDFs, website literature and FAQs.

Using a table of data, the app returns maximum span length results based on options entered by the user. The app will be regularly updated to account for developments on new products. Users can sign up to get notification from us, through the app, on latest company and product developments.

Using the App

To aid the choice of deck profile to select, our ‘Technical help’ section ‘What profile do I need’, can be of assistance by using the product graphs to identify the correct deck type for your slab depth / span / loadings required.

The options in the ‘Span check’ section of the app are specifically ordered as each choice will determine the next option available. This is most apparent when choosing deck type then slab depth and Reinforcement Mesh, the app only offers mesh options that will work with the previous choices of the slab design.


SMD elements Span Check Screenshot 1
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Maximum spans

As well as the Volume of Concrete and Weight of Concrete, the ‘Maximum Un-propped Spans’ section matches the results given in our most recent version of ‘The White Book’ and are all based on S350 grade deck. A range of maximum spans are given based on the deck gauge and span condition (single or double span).

Download Span Check

Using the button below please visit your app store to download SMD Elements® Span Check.