How do I choose the right poker shaft diameter for my project?

Poker shaft diameter should be matched to the density of reinforcement and the mass of the pour, with smaller diameters around 25 to 40mm used for congested rebar cages and larger diameters of 60 to 90mm or more used for mass concrete such as raft foundations. Using an oversized head in a tightly reinforced section risks it becoming lodged between bars, while an undersized head in mass concrete slows the pour down considerably. Most contractors keep two or three shaft sizes on hand to cover the range of elements in a typical project. Sparkline Group's team can review structural drawings and recommend suitable shaft sizes before equipment is ordered. This avoids costly delays discovered only once the pour has started.