If you are searching for a sports card shop near Boise, Grand Slam Sports Cards in Nampa is your closest full-service option. We are a family-owned shop run by two lifelong collectors — not a big box chain, not a flea market table. A real card shop with real inventory and people who know the hobby inside and out.
We carry the brands Boise collectors are looking for and rotate our inventory regularly so there is always something new to dig through.
Why Collectors from Boise Choose Grand Slam
What We Carry
Sports Card Brands
Topps, Bowman, Panini, Prizm, Mosaic, Select, Optic, and Fanatics. Football, baseball, basketball, hockey, and soccer cards available in hobby boxes, blaster boxes, and hanger packs.
Graded Slabs
PSA, BGS, and SGC graded cards across all major sports. Authenticated and condition-evaluated for collectors and investors alike.
Singles
Raw and graded singles across all sports. Inventory rotates frequently — check Instagram @grand_slam_idaho for latest stock.
Supplies
Sleeves, top loaders, binders, and storage solutions for protecting your collection.
Buy, Sell & Trade Near Boise
We are not just a shop — we are your local buying and trading partner. Bring in your collection for a fair cash offer, store credit, or a straight trade. We buy football, baseball, basketball, hockey, and soccer cards — singles, graded slabs, sealed product, and bulk lots.
For large collections, calling ahead helps us give your cards the time they deserve.
How to Find Us from Boise
We are conveniently located at 2108 Caldwell Blvd Suite 113, Nampa, Idaho. Just a short drive from anywhere in the Treasure Valley.
From Boise: Head west on I-84, take the Nampa exit, follow Caldwell Blvd. About 20 minutes from downtown Boise.
From Meridian: Take I-84 west toward Nampa. About 10 minutes from Meridian.
From Eagle: Head south toward Nampa via Highway 20/26. About 15 minutes.
From Caldwell: Head east on Caldwell Blvd. We are on your way.
Store Hours:
Monday through Saturday: 10:00am – 6:00pm Sunday: Closed
