Linear drains collect water along a line instead of at a single point, which lets a shower floor slope in one direction and keeps the rest of the bathroom flat and level. In Jawdah's product data, this role is filled by the rectangle hidden floor drain; there is no separate long-channel linear model listed, so this page presents the rectangle range as the linear option.
The rectangle drain shares the stainless range's material and warranty: deep-drawing stainless steel 304, warranted against corrosion for 25 years. What sets it apart is its elongated shape, its seven lengths and its choice of five cover designs.
A linear or channel-style shower drain is a narrow, elongated outlet placed along a wall, across a doorway or at the edge of a shower zone. The floor is laid as a single plane falling toward it, rather than as four facets falling to a central point. This allows large-format tiles with fewer cuts and makes level-access showers easier to achieve.
Jawdah's documented product for this purpose is the Rectangle Hidden Stainless Steel Floor Drain. Its nominal widths stay constant at 10 while its lengths step from 30 to 90, giving a narrow drain that can be matched to the width of a shower opening. Lengths beyond the listed range are not published; ask Jawdah if a project needs a different length.