Joist Connection Safety Calculator
This calculator evaluates the safety and reliability of joist end connections using screws based on selected framing parameters and screw strength (LSD).
Joist Span:
6 ft
8 ft
10 ft
12 ft
14 ft
On-Center Spacing (OC):
12 in
16 in
19.2 in
24 in
Live Load (LL):
30 psf (Residential Bedrooms)
40 psf (Residential Other / Decks)
50 psf (Garages)
60 psf
100 psf (Heavy Storage / Assembly)
Dead Load (DL):
5 psf (Light Finish)
10 psf (Typical Floor)
15 psf
20 psf (Heavy Finish)
Enter LSD Factored Resistance per Screw (lb):
Service Condition:
Dry Service (Cm = 1.0)
Wet Service (Cm = 0.67)
Calculate Safety and Reliability
Calculation Steps & Results