Cantilever Props are 150x70x2400mm. They rest on a 230x70x1400 beam which spreads the load across three floor beams of which it is bolted to two.

The lateral prop is a 70x70x3700mm timber which has been attached to the roof's joists with 150mm coach screws or 100mm wood screws. There are three supports (all around 70x100x1000mm) from the lateral prop to the roof's trusses.

Contact on truss.

Left side cantilevered prop onto a original joist