AltTuningLab

Calculated starting set

8-String Drop E Gauges for a 27-Inch Guitar

Drop E on an eight-string moves the lowest string an octave below a standard sixth-string E. Here, scale length, construction, and setup are as important as the gauge stamped on the package.

Tuning
E B E A D G B E
Strings
8
Scale length
27 in

Recommendation

.010–.080 is the calculated starting point

On a 27-inch instrument, .010–.080 is a calculated starting set. Use the .080 low E as a comparison baseline, then check the string maker’s specification before choosing a set.

Tension table

Estimated tension at 27 inches

Calculated from pitch, gauge, scale length, and a plain or wound construction estimate.

Total pull138.0 lb
Average / string17.2 lb
Set spread5.8 lb
StringPitchGaugeBuildEstimated tension
8E1.080wound13.2 lb
7B1.060wound16.6 lb
6E2.046wound17.4 lb
5A2.036wound19.0 lb
4D3.026wound17.7 lb
3G3.017plain18.6 lb
2B3.013plain17.3 lb
1E4.010plain18.2 lb

Low-string comparison

Compare nearby gauges at the same pitch

The calculator holds E1 and 27 inches constant, then changes only the wound low-string gauge.

.078
12.5 lb
.080 Starting point
13.2 lb
.082
13.8 lb

What it should feel like

Use the table to make a confident adjustment

Low-E feel varies more here because wound strings differ by manufacturer. Treat the calculated value as a comparison tool: use it to decide whether .074, .080, or .085 is closer to the feel you want, then validate on the guitar.

Before restringing

Plan for the full guitar setup

  1. 1Use a nut and tuner that can physically accommodate the low-string gauge.
  2. 2Check intonation over the frets you use most; low strings can reveal setup issues quickly.
  3. 3For multiscale guitars, enter individual scale lengths instead of using this single-scale example.

Common questions

8-string Drop E string-gauge FAQ

Is .080 too heavy for Drop E?
On a 27-inch eight-string, it is a practical starting point. Your final choice depends on construction, attack, and desired feel, so compare it with nearby gauges using the same scale length.
Do I need a multiscale guitar for Drop E?
No, but a longer bass-side scale can make low-string tension easier to manage. The calculator supports individual string lengths for a multiscale comparison.