The standard grips this chord is usually shown with.
F#maj11 is F#, A#, C#, E#, G# and B, a major eleventh. The shape this page opens on is written 223322, lowest string first.

Also written F#M11, F#Δ11 or F# major 11. The same chord either way; which spelling you meet depends on who wrote the chart.
There are 8 common shapes for F#maj11 on the guitar, and 53 derived voicings in 4 families.
In which keys. Every note of F#maj11 belongs to Eb minor (the ♭III) and F# major (the I).
The common shapes, written lowest string first: 223322, 223324, xx4466, x-9-8-10-7-7, x-9-8-10-0-9, x-9-9-10-11-9, 14-13-x-x-12-13, 14-14-15-15-14-14.
Shell. Root, third and seventh: the guide tones fix the quality, so the fifth is dropped. That is what leaves a string free, so pick a tension to put on top. F#maj11 has 2134xx, 2x330x, xx4367, x-9-x-10-11-7, x-9-8-10-12-x, 14-x-15-15-12-x.
Drop 2. A close-position chord with the second voice from the top lowered an octave. Sits on four adjacent strings. F#maj11 has xx3302, 2233xx, xx4466, x-9-9-10-11-x, 14-14-15-15-x-x, x2436x, x8847x, 6844xx.
Drop 3. The third voice from the top lowered an octave. The dropped voice becomes the bass, which is why a string is skipped. F#maj11 has x2x362, 2x330x, 6x446x, x8x476, 7-x-8-10-7-x, x-9-x-10-11-7, 13-x-9-11-11-x, x-13-x-11-12-13.
Rootless. The root left to the bass player. Frees a finger for a tension. F#maj11 has x1310x, x2332x, xx3304, xx6466, xx8667, x-11-9-10-11-x, x-x-9-10-11-9, x-14-15-15-14-x.
Tensions. A shell of F#maj11, root, third and seventh, leaves a string free, and the tones that belong over it are the 13 (D#).
The common shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.