We troupe a 64'x29'-5" sprung dance floor
similar to this; as a
touring floor, it is by definition "modular and portable."
From the stage
floor up, the structure is:
1/4" Duron backing
3/4" thick neoprene squares, 4"x4", on 1' centers
1/4" Duron, painted dance surface
The 4'x8' panels lock together in staggered fashion with casket lock
with 4'x4' pieces filling in the odd ends. The edges of the plywood
are routed with 1/2" round, and 1/2" dowel is attached on one long
side and one short side, serving as sort of tongue-&-groove
and making the deck
flex as a cohesive surface... Usually.
We inherited this floor from the 'Movin' Out' tour, and have schlepped
it all over the world for the past nineteen months. By and large, it
has held up reasonably well to the grind, with a modicum of care taken
in laying it. The Duron deck surface gets repainted every 6-10 weeks
or so, and touched up where the stuff got damaged from careless Locals
trying to kick it together.
Personally, I like this deck a lot, as do the dancers who have worked
on it on tour for the past year and a half.