One rarely sees a 1 of suit opening allocated to cover just a balanced range, but it is possible.

Here are two approaches to 1D as 11-14 balanced:

1)
1C: 10+ to near GF, unbalanced, no five card or longer major
1D: 11-14 balanced or semi-balanced
1M: 5 card major, 10+
1NT: 15-17 balanced
2C: 22+ balanced or any game force
2D: 18-19 balanced
2NT: 20-21 balanced

2)
1C: 10+, unbalanced, no five card or longer major, forcing
1D: 11-14 balanced or semi-balanced
1M: 5 card major, 10+
1NT: 15-17 balanced
2C: 18-20 balanced
2D: 23+ balanced or game force in a major
2NT: 21-22 balanced

Here's a first - two 1 of a suit openings allocated to balanced ranges:

1C: 11-14 balanced or semi-balanced, includes 5-4-2-2s with 5Hs and a 4 card minor
1D: 10+, unbalanced, no five card or longer major, not 4Ss if game force
1H: 15-17 balanced, or 23+ balanced without 4+Ss
1S: 5+Ss, 10+ to near GF
1NT: 15+, 5+Hs, forcing
2C: 18-20 balanced
2D: 4Ss, 5+Hs, 10-14 or 4+Ss game force
2H: 10-14, 5+Hs, fewer than 4Ss, must have a singleton/void if just 5Hs
2NT: 21-22 balanced