"The new trees will add to the diversity of the forest, which adds to the forest's long-term health," Presidio Trust forester Peter Ehrlich said.
Greater species variation affords the forest greater protection, in case disease attacks one species, he said.
The new trees, which will be planted in December, will line Arguello Boulevard near the park's Inner Richmond entrance.
The coast redwoods, which already make up about 5 percent of the 300-acre Presidio forest after an initial redwood planting in the 1940s, will replace 100 nonnative, invasive Blackwood acacias that will be removed from the area in September.
The grant came from the Morgan Hill-based Feigenbaum-Nii Foundation.
The planting is part of the Presidio's recent reforestation efforts to replace aging and sick trees with young trees such as Monterey cypress, Monterey pine and coast redwoods.
Almost 2,000 trees have been planted since 2002.