Five-ply constructions: the classic reference
The five-ply construction is the longest-lived and most widespread design in table tennis. It appeared when manufacturers discovered that alternating two wood species in a symmetrical sandwich — outer, intermediate, core, intermediate, outer — produced a blade more stable, more versatile and more predictable than any block of solid wood. Decades later, it remains the basis against which everything else is measured.
The structure, described in 8.1, is simple: five plies with the fibres alternating in longitudinal and cross direction, arranged symmetrically around the core. What turns that structure into a universe of variants is the choice of species. Sections 9.2 and 9.3 covered the usual options for core and outers; what matters here is how they combine and which playing profiles they produce.
The classic allround formula puts a soft ayous core between outers of limba or a wood of medium hardness. The result is a blade that flexes generously on impact, holds the ball long enough to load spin comfortably and returns a contained speed the player controls without effort. It is the blade of whoever is learning, but also of whoever has played for years and prefers technique to rule over material. Stiga's Allround Classic is probably the best-known example of this profile, though the specific models are dealt with in 9.7.
When the outers are hardened — koto instead of limba, or hinoki of good density — the character changes. The surface becomes firmer, the ball leaves sooner and the flexing concentrates in the core instead of spreading through the whole blade. The profile moves from allround to attacking without the blade losing the essence of five plies: there is still a long dwell time, still informative vibration, still that dialogue between hand and ball that section 9.1 described as the reason all-wood exists. What changes is the threshold: the bat asks for more committed strokes to draw out its potential, and on soft strokes it proves less accommodating than the allround version.
The core also marks differences within the same category. A five-ply with kiri at the centre weighs less and responds more drily than the same construction with ayous, because kiri absorbs less energy — as explained in 9.2. For the player who wants a light attacking blade without resorting to composite, that combination — koto outside, kiri inside — is a common solution. At the other extreme, a thick ayous core beneath limba outers produces the slowest and most tolerant version of the family: a blade that forgives errors of impact and works especially well with soft tensor rubbers.
The intermediate plies, to which attention is rarely paid, serve as a transition. They are usually of the same species as the outers or of a wood of intermediate density. Their thickness and hardness modulate how the energy is transmitted from the surface to the core. Thick, stiff intermediates shorten the chain of deformation and bring the behaviour closer to that of a seven-ply blade; thin, soft ones let the core work more, accentuating the flexing and the touch.
The total thickness of the blade varies between 5.5 and 6.5 mm on most five-ply models. The thinner ones tend to be more flexible and lighter; the thicker ones stiffer and more powerful. It is a narrow range, but within it fall differences of character the player notices from the first knock-up.
What does not fit in a five-ply — at least not without straining the physics — is raw power comparable to a seven-ply blade or to one with composite. When the player needs more speed than five plies offer, there are two roads: add wooden plies (9.5) or add synthetic fibre (chapter 10). What is lost on either road is part of the flexing, part of the vibration and part of that organic feeling that has kept the five-ply as the reference for half a century. For many players — club players, regional competitors, veterans, touch players — that loss does not compensate. The five-ply is still enough, and enough, well chosen, is usually best.