We discuss the approach of generating round beams for ultimate storage ringsusing vertical damping wigglers (with horizontal magnetic field). The verticaldamping wigglers provide damping and excite vertical emittance. This eliminatesthe need to generate large linear coupling that is impractical with traditionaloff-axis injection. We use a PEP-X compatible lattice to demonstrate theapproach. This lattice uses separate quadrupole and sextupole magnets withrealistic gradient strengths. Intrabeam scattering effects are calculated. Thehorizontal and vertical emittances are 22.3 pm and 10.3 pm, respectively, for a200 mA, 4.5 GeV beam, with a vertical damping wiggler of a total length of 90meters, peak field of 1.5 T and wiggler period of 100 mm.
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