Foundation Type
Advantages
Disavantages
Rough Cost
Patio Stones
Cost‑effective and straightforward to install; a handy homeowner can complete the work with minimal disturbance to your yard.
Labour‑intensive to level; offers limited drainage and can allow water intrusion; prone to frost heave and settling over time; not ideal for structures with swing doors.
~$6.00/sqft + Labour
Subfloor on Concrete Blocks
Affordable and quick to set up; DIY‑friendly with little yard disruption; space beneath the subfloor allows for optional insulation.
Slight risk of frost movement and critters; elevated entry step; not recommended for larger studios.
~$9.00/sqft + Labour
+$3.00/sqft for Insulation
Subfloor on Sonotubes or PermaColumns
Less expensive than a full pad; minimal ground disturbance; more resistant to frost heave than block footings; can be installed in one day by a landscaper or handy homeowner; supports insulation.
More costly than simple block foundations; requires warm temperatures for concrete to cure; tubes need time to set; elevated entryway and potential nesting spots.
~$11.00/sqft + Labour
+$3.00/sqft for Insulation
Subfloor on Helical Piles
Highly stable and frost‑proof; minimal yard damage; installation is quick (often within one day); piles can be removed or reused; supports insulation.
More expensive than blocks; elevated entry; requires a skilled installer and specialized equipment; open space can attract critters.
~$18/sqft Including Labour
+$3.00/sqft for Insulation
Concrete Pad
Longest lifespan; provides a level, solid base that’s quick to build on once cured; ideal for studios because it can be insulated; may be poured by an experienced DIYer.
Most expensive option; the slab needs time to cure; lead times from concrete crews can be up to eight weeks.
Highly variable by location, always reach out to local contractors/landscapers. We have seen pricing from $20.00/sqft - $60.00+/sqft
