Explanation of Load Tables
EXTRA CORROSION PROTECTION
HOW WE DETERMINE ALLOWABLE LOADS
These icons identify products that are available with additional corrosion protection (ZMAX®, Hot-Dip Galvanized, stainless steel or the SDS double-barrier coating). Other products may also be available with additional protection, contact Simpson Strong-Tie
for options. The end of the product name will indicate what type of extra corrosion protection is provided (Z = ZMAX®, HDG = Hot-Dip Galvanized or SS = stainless steel). See Corrosion Information
Allowable loads in this catalog aredetermined using calculations and/or one or more of the following methods:
- a minimum of 3 static load tests in wood assemblies;
- a minimum of 3 static load tests in steel jigs;
- a minimum of 3 static load tests of products embedded in concrete or masonry.
Where available, testing is performed to test criteria established by industry (ASTM or ICC-ES Acceptance Criteria) or if unavailable testing is per sound engineering principles. Some tests include only portions of a product such as purlin anchor tests - only the embedded hook is tested, not the nailed or bolted section of the strap, which is calculated. Testing to determine allowable loads in this catalog is not done on connection systems in buildings. Testing is conducted under the supervision of an independent laboratory. Typically the allowable load is limited to the lowest of 1/8" deflection, test ultimate/3 or calculation value.
For detailed information regarding how Simpson Strong-Tie tests specific products, contact Simpson Strong-Tie.