Refining the Gravel Base with Screed Poles and Compaction
At 7:45 in
The Invisible Work: Prepping a Massive Patio Foundation - GLASS HOUSE EP 4
What happens here
After establishing the rough gravel sub-base, the next step is to refine its surface for the screed layer. Begin by laying down geotextile fabric over the gravel to prevent the sub-base from mixing with the screed layer and to aid drainage. Use rakes (landscape rakes) to evenly spread additional crushed stone over the geotextile fabric. Install screed poles (metal or PVC pipes) as guides to maintain a consistent depth and pitch for the final layer. Utilize a plate compactor (Bartell SP-13H) to achieve a tightly compacted and stable base. Continue adding gravel and compacting until the desired elevation and uniform pitch of 3 inches is achieved across the entire circular area, ensuring proper drainage.
Goal: Create a smooth, compacted, and properly pitched gravel base ready for pavers.
Tools and materials
- Geotextile Fabric — Separating sub-base layers and improving drainage
- Landscape Rakes — Spreading gravel evenly
- Level — Checking the slope and evenness of the base
- Plate Compactor Bartell SP-13H — Compacting the gravel base for stability
- Screed Poles — Creating guides for a consistent base depth
- Crushed Stone — Final layer of the base
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