WRI | Lap Splice Calculator

Select Applicable ACI Standard:

Select Reinforcement Type:

Development Specific Inputs

Select Wire/Bar Size to be Developed/Spliced:

Diameter of Reinforcement (in)

Cross-Sectional Area of Reinforcement (in²)

Are available Welded Crosswires relied upon by the Designer to Contribute to the Development of the Reinforcement?

Yes

Select Reinforcement Yield Strength, f_y (psi):

Select Concrete Specified Compressive Strength, f'_c:

Select Modification Factor: Concrete Weight λ

Modification Factor: Reinforcement Grade Ψ_g

Select Modification Factor: Coating Ψ_e

Modification Factor: Size Ψ_s

Select Modification Factor: Casting Position Ψ_t

Product Ψ_tΨ_e

Reinforcement Positioning Inputs

Minimum Length Inputs

Spacing of Wires Being Developed

Clear Cover Dimension

Use K_tr = 0 as a Design Simplification? (Recommended)

Yes

Reinforcement Positioning Inputs

Minimum Length Inputs

Spacing of Crosswire

Spacing of Wires Being Developed

Reinforcement Positioning Inputs

Minimum Length Inputs

Spacing of Bars Being Developed

Clear Cover Dimension

Use K_tr = 0 as a Design Simplification?

Yes

Required Minimum Length Results

ACI 318 Calculator