Most of the material inside an upholstered booth is polyurethane foam, made from petrochemicals. This booth replaces it in the seat with a layered natural filling: about 4 cm of coconut coir fibre at the base, about 6 cm of natural latex foam above it and a thin layer of wool wadding on top. The image shows a cut-away end framed in brass so the layers can be seen.
Latex and coir give a supportive, resilient seat that suits long sittings. The trade-offs are real: natural latex is heavier and more costly than polyurethane, and the whole composite must be fire-tested for your market, which can require a barrier layer. Natural latex can also contain some synthetic latex depending on the supplier, so we state the composition given on the supplier's sheet.
The frame is our standard hardwood and plywood seat box with brass capping and a timber plinth.
