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AWC Connection Calc

AWC Connection Calc

by American Wood Council

2 ratings
6 reviews
🔧 Utilities
📊 Productivity
Free

Details

Released
September 19, 2013
Updated
October 30, 2026

Features

Developer

American Wood Council
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About

Calculate capacities for various fasteners in wood connections based on the 2024 National Design Specification. Supports single and double shear, withdrawal capacities, and wood-to-wood, wood-to-concrete, and wood-to-steel connections.

✓Calculate single bolt, nail, lag screw, and wood screw capacities
✓Determine lateral (single and double shear) capacities
✓Calculate withdrawal capacities
✓Supports wood-to-wood connections
✓Supports wood-to-concrete connections
✓Supports wood-to-steel connections
✓Based on 2024 NDS
Show original description
+1

What's New in AWC Connection Calc

2.4.41

October 30, 2026

FIXED: Unable to manually enter a value for Load to Grain Angle

User reviews

Most RecentHighest RatedLowest Rated

Worthless

The app changes the input data when calculating. For instance Cd changes from 1.33 to 1.0 and sheathing thickness changes from 1/2” to 3/8”.
22studly

Erroneous Results

This app gives erroneous results. I use an online calculator which gives results consistent with the tables in AWC chapter 12. I don’t trust this app.
22studly

Great idea, but crashes

This app would be great for a structural engineer like myself. However, after I put in all the info and press calculate, it quits. I haven't seen a solution to my inputs yet. It quits every time. Great idea, just need to fix the crashing.
MMolz14

Ne fonctionne pas

Allume et éteint instantanément sur un ipad air2 avec ios 8.x
Désolant
KKoak007

Stopped working

Good app, but stopped working with ios 9. Please fix.
RRobtheengineer

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FAQ

What connection types does AWC Connection Calc support?

AWC Connection Calc supports wood-to-wood, wood-to-concrete, and wood-to-steel connections. It calculates capacities for single bolts, nails, lag screws, and wood screws, including lateral (single and double shear) and withdrawal capacities.

What design specifications does AWC Connection Calc use?

The app calculates connection capacities based on the design provisions in the 2024 National Design Specification® for Wood Construction (NDS®). This ensures calculations adhere to current industry standards for wood structures.

Is AWC Connection Calc available on all devices?

AWC Connection Calc is available for iPhone, iPad, and iPod. It is designed for mobile use, allowing for on-the-go calculations.

How often is AWC Connection Calc updated?

The latest version of AWC Connection Calc is 2.4.41, which was last updated on October 30, 2026. This indicates a commitment to keeping the app current with design specifications.

What is the user rating for AWC Connection Calc?

AWC Connection Calc has a rating of 2.5 stars from 2 ratings. This suggests that while some users find it useful, there may be areas for improvement based on user feedback.

Does AWC Connection Calc have ads?

No, AWC Connection Calc does not contain advertisements. As a free application, it provides an ad-free experience for users.

What age rating is AWC Connection Calc?

AWC Connection Calc has an age rating of 4+. This means it is suitable for users aged 4 and older, indicating no mature content.

Does AWC Connection Calc handle multiple-fastener connections?

The current version of AWC Connection Calc does not specifically address multiple-fastener connections. For these scenarios, users are advised to consult NDS Chapters 10-11 and NDS Appendix E.