There are many grades of stainless steel available for construction, each with unique properties and characteristics. Some of the most common grades used in construction include:

1. Grade 304: This is the most commonly used grade of stainless steel in construction. It is highly versatile, easy to work with, and has excellent corrosion resistance.
2. Grade 316: This grade of stainless steel is highly corrosion-resistant and is often used in harsh environments such as marine or coastal areas.
3. Grade 430: This grade of stainless steel is less corrosion-resistant than grades 304 and 316 but is highly magnetic and has good thermal conductivity.
4. Grade 2205: This is a duplex stainless steel that is highly resistant to corrosion, making it a popular choice for applications in chemical processing, oil and gas, and marine industries.
5. Grade 17-4 PH: This is a precipitation-hardening stainless steel that is highly corrosion-resistant and has excellent strength.
6. Grade 410: This is a martensitic stainless steel that is highly resistant to corrosion and is often used for applications such as fasteners and fittings.