I wasn't sure that I understood the first question and if you were asking what the glulam was made of. If so, the glulam - Glued Laminated Timber, is a type of structural, pressure-treated timber made up of a number of layers of timber bonded together for strength with durable, moisture-resistant structural adhesives. Glulams come in various sizes. This one was wrapped with Merbau on site by the contractor. Any contractor in France should be able to do this for you.
Tropical Architecture Group, Inc.