What decking tiles are
Decking tiles are interlocking panels with a drainage base that sit directly on a hard, level surface such as a slab, tiles or a balcony. They need no frame.
A verified example
NewTechWood’s DIY composite deck tiles are 600 × 300 mm, sold in boxes of 10 that cover 1.8 m². They are fully capped composite with a drainage grid underneath, and NewTechWood says they are made from 95% recycled material.
To estimate boxes, divide your area in m² by 1.8 and round up, then add a little for cuts at the edges.
Tiles or a framed deck
Tiles suit balconies and small patios. For larger or raised areas, a framed deck on an aluminium subframe or timber is the better option.