The panel direction changes the appearance of the façade, but also the arrangement of supports and the installation method. In the case of extension, it must be adapted to the old structure and the new openings. The choice should be made before cutting. Later rotation of the panels may require changing the fixings, details and the entire organisation of delivery to the site. The panel transfers loads between the designated supports. In a vertical arrangement, it requires properly distributed horizontal supports. In horizontal installation, it works between the appropriate vertical elements. The installation direction should therefore also result from the structural design.

A price starting from a low amount usually describes a selected material variant. It does not determine the full cost of the wall. With a 40 mm panel, the core, facings, lengths and suitability for the building must be checked. Only then can the cutting plan, transport and the accessories needed to close the enclosure be calculated. The quote should indicate the panel type, core, thickness and facings. The colour, coating, fixing method and grade are also needed. Two 40 mm panels may have different properties and applications. The dimension alone does not create a comparable specification.