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About

We’re a family-owned, locally operated sports card shop right here in the Treasure Valley — recently purchased from another awesome local family, so the hobby love stays right where it belongs… in the community.

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Owned by two grown men who still get way too excited about a big pull, we built this shop on late-night breaks, childhood collections, and the firm belief that you’re never too old to chase a rookie card. What started as a passion (and maybe a slight cardboard addiction) turned into a place where collectors can hang out, trade stories, rip packs, and relive the glory days.

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Whether you’re hunting a grail, building your first binder, or just stopping by to talk sports and “just look” (we know how that goes), we’ve got you covered.

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We’re proud to keep this shop family-owned, locally rooted, and community-driven. When you support us, you’re supporting Treasure Valley families, local events, and a space where the hobby is alive, loud, and thriving.

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Stop in. Rip something. Stay awhile. Just don’t blame us when you need one more box.

New owners in front of Grand Slam Sports Cards Nampa

OWNERS: JASON & CHRISTIAN

See What Our Customers Have To Say About Us

Address

2108 Caldwell Blvd ste 113
Nampa, ID 83651

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Grand Slam Sports Cards logo in Nampa, Idaho

Hours

Mon - Sat

10:00 am – 6:00 pm

​Sunday

Closed

© 2026 GRAND SLAM SPORTS CARDS

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