What is the minimum sub base for a residential paver pathway?

What is the minimum sub base for a residential paver pathway?

• A. 4 Inches
• B. 6 Inches
• C. 3 Inches
• D. 5 inches

Answer: (C)

The main idea is that the sub-base provides a stable, well-drained foundation that distributes loads and resists frost and settlement. For a typical residential pedestrian path, the minimum amount of compacted granular sub-base is three inches. This thickness gives enough mass to spread loads from foot traffic and to drain properly, helping prevent heave and uneven lighting of the surface. Use angular crushed stone or gravel and compact it well, usually in layers, before adding the bedding sand and pavers on top. After establishing the sub-base, a one-inch layer of bedding sand is laid before placing the pavers. In harsher climates or for heavier loads, you’d increase the sub-base, but three inches is the minimum recommended for a standard residential walkway.

The main idea is that the sub-base provides a stable, well-drained foundation that distributes loads and resists frost and settlement. For a typical residential pedestrian path, the minimum amount of compacted granular sub-base is three inches. This thickness gives enough mass to spread loads from foot traffic and to drain properly, helping prevent heave and uneven lighting of the surface. Use angular crushed stone or gravel and compact it well, usually in layers, before adding the bedding sand and pavers on top. After establishing the sub-base, a one-inch layer of bedding sand is laid before placing the pavers. In harsher climates or for heavier loads, you’d increase the sub-base, but three inches is the minimum recommended for a standard residential walkway.