Landscape · L-GTZ8M

Boulder Installation on Structure and Grade

Materials

Elements

Floors / Slabs Decks Arches Waterproofing / Flashing Drainage Site / Paving

About this detail

Landscape boulders are embedded one-third of their height below finished grade or topping slabs, leaving two-thirds exposed. Installation requires an articulated knuckle boom for full 360-degree rotation without dragging, pushing, or backhoes, and boulders must be power-washed prior to placement. Type A, B, and C boulders vary in height, width, and length from two to three feet high by three to five feet wide. On structural decks, boulders rest on a thin mortar set over waterproofing and structural slabs, with joint sealant at the perimeter. Boulders must remain unburied on decks and concrete paving.

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