[header] How to build a garden shed [title] Choose and measure your garden shed's location. [step] It should ideally be on level ground. [title] Use solid concrete blocks that are 4 inches (10 cm) and 2 inches (5 cm) thick to build a foundation for your wooden shed. 
[substeps] Dig a shallow hole for your first block's location. Use a hand tamper to make the soil level and compact.