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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.

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.

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.

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.

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

Address

2108 Caldwell Blvd ste 113
Nampa, ID 83651

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Hours

Mon - Sat

10:00 am – 6:00 pm

​Sunday

Closed

© 2026 GRAND SLAM SPORTS CARDS

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