
About the collection
The SEASHELL collection draws inspiration from the serene imagery of a seashell discovered along an untouched shoreline. For Jean-Marie Massaud, the name evokes a sense of tranquility and protection that a seashell offers. With a commitment to ecoconscious materials and meticulous craftsmanship, Massaud captures the essence of barefoot luxury.
Jean-Marie Massaud has opened a new chapter for the iconic DEDON SEASHELL series with the SEASHELL GRAND collection. Inspired by the gentle embrace of a seashell, SEASHELL GRAND, as a sister collection to SEASHELL NUO, offers a sense of security and comfort.
Designer
French multidisciplinary designer working across architecture, furniture and industrial design. Seashell Grand is Jean-Marie Massaud's collection for DEDON.
In situ






Seashell Grand sits within the catalog of DEDON, the German luxury outdoor furniture house founded in 1990, and is designed by Jean-Marie Massaud. DEDON pioneered the synthetic weaving fiber that defines the category; its pieces are hand-woven at the company's own facility in Cebu, the Philippines, on frames of powder-coated aluminium and, in several ranges, teak, with established US trade representation.
For US trade specifiers, Seashell Grand carries the same material data as the rest of the DEDON catalog: weather-resistant DEDON Fiber (UV- and chlorine-stable), marine-grade aluminium hardware, and ASTM F1858 outdoor-furniture compliance where applicable. Fire-code classification applies to cushion components; chain-of-shipment documentation is supplied with the invoice. Bespoke fabric substitutions are accepted on COM workflow with confirmed yardage at quote stage; see the Sunbrella and Outdura specifier reference for the workflow.
Net pricing for Seashell Grand is quoted at US trade volumes, before fiber colour, frame finish, fabric grade and consolidated freight. Lead time is typically 10-16 weeks from the Philippines weaving facility to US port for standard configurations; bespoke dimensions, COM upholstery or large hospitality volumes extend by 4-8 weeks. The collection is specified in US hospitality outdoor (resort pool decks, boutique hotel terraces, restaurant outdoor dining) and in premium residential outdoor (terrace, courtyard, poolside) installations.
Seashell Grand is designed by Jean-Marie Massaud, produced by DEDON. Full material specifications, dimensions and finish options are supplied on request with the trade quote.
Yes. DEDON runs a verified US trade programme. Net trade pricing for Seashell Grand is shared after qualification (designer of record, project scope) under the DEDON trade terms for premium outdoor specifiers.
DEDON Fiber is the brand's proprietary all-weather woven fiber, engineered for UV, frost and salt-spray exposure. Seashell Grand is cleaned with mild soap and water; cushions and COM upholstery follow the fabric maker's care schedule. See the FF&E procurement workflow for the full COM and bespoke sequence.
DEDON outdoor pieces share a common care pattern: quarterly rinse with clean water and mild soap, twice-yearly inspection of cushions and fittings, and off-season storage of soft goods in freeze-thaw climates. Frames (aluminium, teak) typically carry multi-year structural warranties; fibers and fabrics carry shorter terms against UV and stitching, supplied in writing with the quote. US service life on DEDON woven fiber is long when maintained, with COM refresh extending the cushion cycle.
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