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Standardised design

There are big advantages to using standardised design. At Sapphire, we have created our Cassette® system on the principle of modular construction. Our Cassette® skeletons are constructed at 400mm modules. We have created a range of standard sizes which offer the optimal widths in several projections. The benefit of using standard sizes is efficiency and therefore cost saving.

Standard balcony sizes have been designed, continually refined, and are held in standard models, meaning we can quickly provide drawings of for project balconies in 2D or 3D CAD or as BIM Components, along with FEA and structural calculations.

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Balcony finish

The first part of an ideal balcony solution is a rigid connection back to the building. We have a number of solutions for you from cast-in balcony anchors to post-fixed solutions.


The balcony anchors and connection back to the building, whilst unseen, is structurally the most important element.

3D Design using Coach

Choosing an anchor which has very good thermal performance, but poor structural performance is likely to not only cost more but not provide the thermal benefit of having a similar performing thermal anchor which enable fewer connections to be used.

The Cassette® balcony system is considerably lighter in weight, (primarily because of its aluminium construction) and the anchors used are considerably stronger than other options available which both mean that the number of anchor connections required can be reduced, saving cost and minimising cold bridging.

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