The minimum concrete cover for slabs usually ranges between 20 mm and 30 mm, depending on exposure class. Eurocode allows 20 mm for internal dry environments (XC1), while 30 mm or more is required for external or aggressive exposures like XC3–XC4 or XD classes. According to ACI 318, 20 mm (3/4") is used for interior concrete, and 40 mm (1.5") for concrete exposed to weather or ground. To maintain correct cover, use non-corrosive plastic spacers placed at regular intervals, typically around 1.0 m. These support the reinforcement during casting and curing. Steel spacers are not recommended due to corrosion risks that can reduce durability.
Reinforced Concrete Detailing CAD Drawings
This section provides reinforced concrete detailing CAD drawings created in compliance with international standards such as ACI 318 and Eurocode 2 (EN 1992-1-1). These drawings are essential for engineers, drafters, and construction professionals who need accurate, code-based reinforcement details.
What You’ll Find Here
- Minimum concrete cover requirements
- Standard bar spacing and arrangement rules
- Development length and anchorage detailing
- Lap splice and bar termination guidelines
- Spacer and support placement illustrations
All CAD drawings in this section are downloadable in DWG and PDF format for immediate use in structural projects. Every file is prepared according to fixed code rules, making them reusable across various design cases without recalculation.
Start browsing now to enhance your workflow with high-quality, standards-based CAD resources for reinforced concrete projects.
