Design & Construction of a Patio Slab
                     Design & Construction of a 
Patio Slab
A Practical Guide to Building Durable Outdoor 
Flooring
Presented by: Ammaari Stones
Introduction to Patio Slabs
What is a Patio Slab?
Flat durable outdoor surface, concrete or pavers
Functionality
Stable base for furniture, grills, and walkways
Usage Areas
Residential yards, gardens, commercial spaces
Benefits
Enhances outdoor aesthetics and usability
Types of Patio Slabs
Concrete Slab Paver Slabs Natural Stone/Gravel
• Poured in place • Precast stones or bricks • Rustic and eco-friendly
• Stamped, stained, or brushed • Modular and decorative • Needs edging and good 
finishes compaction
Design Considerations
Purpose & Usage
Dining, lounging, walking areas
Size & Shape
Based on space and user needs
Drainage
1-2% slope away from structures
Style & Climate
Match home style, withstand weather
Site Preparation
Marking the Area Sub-base Installation
Use stakes and string for layout Compacted gravel or crushed stone
Excavation Level & Slope
Remove 4–8 inches topsoil Ensure drainage away from buildings
Formwork and Reinforcement
Formwork
Wood or plastic boards create edges
Reinforcement
Wire mesh or rebar prevents cracking
Secure Setup
Tightly fix formwork before pouring
Concrete Pouring & Finishing
Optional Decoration
Leveling & Finishing Stamping or staining for 
Pouring Trowel smooth or broom style
Mixing Fill evenly, avoid air pockets texture
Ratio approx. 1:2:3 
cement:sand:gravel
Curing and Maintenance
Curing Time Moist Curing
24-48 hours initial set; 28 Cover or spray water 
days full strength regularly
Sealing & Cleaning
Apply sealant; clean often, reseal every few years
Cost & Project Timeline
Cost Breakdown Project Timeline
• Materials $4–$10 per sq. ft. • Planning & prep: 1-2 days
• Labor varies by region • Pouring: 1 day
• Curing & finishing: 1-3 days
DIY vs Professional
DIY saves money but needs skill
Thank 
wYww.amomaariustones.!co.uk