  Digital and Semi-Digital Hadronic Calorimeters (S)DHCAL were suggested for
future Colliders as part of the particle-flow concept. Though studied mostly
with RPC-based techniques, investigations have shown that MPGD-based sampling
elements could outperform. An attractive, industry-produced, robust,
particle-tracking detector for large-area coverage, e.g. in (S)DHCAL, could be
the novel single-stage Resistive Plate WELL (RPWELL). It is a single-sided
THGEM coupled to the segmented readout electrode through a sheet of large bulk
resistivity. We summarize here the preliminary test-beam results obtained with
6.5 mm thick (incl. electronics) {$48 \times 48\,\mathrm{cm^2}$}~RPWELL
detectors. Two configurations are considered: a standalone RPWELL detector
studied with 150 GeV muons and high-rate pions beams and RPWELL sampling
element investigated within a small-(S)DHCAL prototype consisting of 7
resistive MICROMEGAS sampling elements followed by 5 RPWELL ones. The sampling
elements were equipped with a Semi-Digital readout electronics based on the
MICROROC chip.
