Stainless Steel Linear Drains: Rectangle Hidden Floor Drain Range

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.

Values are reproduced from the Jawdah data. Dimensions are printed without a unit and are shown as nominal sizes as listed. In the source, the five designs appear once against the whole table, so they are shown as a range listing; confirm which design is available at each length.

With a point drain, the installer must create several sloped facets that meet at the outlet. With a long rectangle drain, the shower floor can be one inclined plane falling toward the drain line. The result is simpler tiling, fewer diagonal cuts, and a floor that feels flatter underfoot.

Placing the drain at the wall side of a shower keeps the entry area level, which helps in accessible bathrooms and hotel rooms. Placing it across the shower entrance catches water before it reaches the dry zone.

Match the drain length to the shower opening or wall length it serves, leaving room for the tile layout at each end. A short drain such as 10 × 30 or 10 × 40 suits a compact shower; 10 × 60 to 10 × 90 covers wider showers and entrance thresholds.

Hole size follows length in the Jawdah table: the four shorter sizes have a 1.5” hole and the three longer sizes a 2” hole. Longer drains usually serve larger shower areas, so the step-up in outlet makes sense, but the drainage engineer should still confirm that the hole size and pipe suit the expected flow, particularly where rain-type shower heads or several outlets discharge to one drain.

Most linear drain problems are layout problems.

A square hidden drain collects at one central point and needs falls from every side; the rectangle drain collects along a line and lets the floor fall one way. The square range offers larger holes, up to 4”, while the rectangle range offers 1.5” and 2”.

A trench drain is a longer channel used for large floors, kitchens and external areas; the rectangle hidden drain is a bathroom-scale product. For high flows over long distances, a trench system is usually considered instead.