Landscape Plan Symbol for Railroad Ties

No unique “railroad tie” symbol exists. The conventional architectural symbol for dimensional lumber in section is a square with an “X” through it (representing end grain). Adding the “X” to the plan’s squares—or showing end-grain hatching—clarifies the material. Per drawing hierarchy, text labels override symbols; if the plan says “RR ties,” that governs.

Architectural symbol reference.

Push back on the board: a plan is a diagrammatic construction document, not a rendering. The “X” convention is decades-old standard practice.