Site Preparation and Foundation Installation Guide
Site Selection and Preparation
1. Location Planning
- Verify exact structure dimensions
- Check local municipal/county permit requirements
- Ensure clear, level construction area free of debris, roots, grass, and large rocks
2. Site Drainage and Grading
- Select a location with good drainage
- Create a gentle slope of 1/8 inch per foot in all directions
- Excavate site 4 inches deep if drainage is a concern
- Add gravel or crushed rock for improved drainage
3. Foundation Location Marking
- Use 3-4-5 triangulation method to ensure precise right-angle corners
- Drive stakes and use string lines to outline the structure's footprint
Foundation Options
1. Patio Stone Foundation
- Suitable for stable ground with good drainage
- Position stones around perimeter and specific joists
- Use 2x4 lumber and carpenter's level to ensure stones are perfectly level
2. Pressure-Treated Beam Foundation
- Lay beams perpendicular to floor joists
- Secure beams with 1/2" rebar driven 3-4 feet into the ground
- Maintain open sides for drainage and air circulation
3. Concrete Slab Foundation
- Recommended thickness: 3-4 inches
- Subbase: 4 inches of gravel or crushed rock
- Excavate to 6 inches depth
- Install vapor barrier
- Use form boards and stakes
- Pour and level concrete
- Allow 7-10 days for complete curing
Installation Tips
- Leave 2-3 feet of clearance around structure for comfortable assembly
- Verify no doors or windows will be obstructed
- Double-check levelness at each installation stage
