Grand Slam Sports Shop

Old-school sports card stop on 17 Mile Road serving Sterling Heights with baseball and football wax, vintage singles, and Detroit memorabilia.

Grand Slam Sports Shop is the kind of storefront that barely exists anymore: a dedicated sports card and memorabilia shop on 17 Mile Road that has been serving Sterling Heights collectors since long before breaks and online flipping took over the hobby. Walk in and it is wax boxes, commons bins, and glass cases — no gaming tables, no distractions.

Baseball is the backbone, as the name suggests, with football, basketball, and hockey product rotating through alongside it. Detroit fans do especially well here; Tigers, Lions, and Red Wings memorabilia shares shelf space with the cardboard, and the vintage singles are where longtime customers tend to linger. If you collect older Topps or are trying to finish a set from your childhood, this is the sort of shop where the owner will actually dig through inventory to help you find the card.

A 4.4 rating across roughly 150 Google reviews tells the story of a neighborhood shop that treats people right. Reviewers describe fair pricing on both sides of the counter — whether you are buying a hobby box or selling off a collection — and the kind of unhurried conversation about the hobby that big-box retail can't offer. For anyone hunting a Sterling Heights card shop with genuine hobby-era roots, this is it.

The schedule follows a classic retail rhythm: 10AM to 7PM Monday through Friday and 10AM to 5PM on Saturday, with Sundays off. Weekday afternoons are the quiet window if you want time at the case; Saturdays draw the regulars. Parking sits right off 17 Mile Road near Ryan Road on the city's west side, an easy stop for collectors anywhere in the Warren-Troy-Utica corridor.