The security door outer sill is coated in natural veneers (anegre, oak, beech, cherry), artificial veneer (oak, anegre 'alpi') or bare with first grade cpl strength. The glue used is specific for outdoors (resistance to 130 cel). The sill can be manufactured from MDF or plywood.
The rod length is 2.44m, width 98mm and 16mm thick.