Ultimate Guard Boulder Deck Case 100+ Solid Black

Built Like Its Name Suggests

The Ultimate Guard Boulder Deck Case 100+ in Solid Black is a deck box that takes its job seriously. Machined from Ultimate Guard's signature high-grade polypropylene, the Boulder has a distinctly solid, weighty feel the moment you pick it up — not the hollow rattle of a budget shell. The rounded edges and matte black finish give it a clean, understated look that fits as naturally in a tournament bag as it does on a shelf.

Capacity & Sleeve Compatibility

The 100+ designation means this box comfortably holds a full 100-card Commander deck in standard sleeves — and the extra clearance is there for a reason. The Boulder 100+ is confirmed double-sleeve compatible, fitting a sleeved deck inside a second sleeve without a fight. That's a meaningful distinction for players running Dragon Shield or KMC outers over their inner sleeves, and it's one of the primary reasons this box earns repeat purchases from the competitive and Commander crowd alike.

Closure & Access

The Boulder uses Ultimate Guard's signature hinged lid with a secure snap closure — no magnets to weaken over time, no straps to snag or fray. The lid opens wide and stays out of the way during play, and a generous thumb notch at the front of the box lets you access the top card of your deck without digging. The interior is smooth and snag-free, so your sleeve surfaces stay pristine.

Who This Box Is For

The Boulder 100+ is the workhorse choice for Commander players who double-sleeve their builds and want a box that can take the daily grind of a game bag without cracking or warping. It's equally at home as a reliable Standard or Modern carry for tournament players who want a no-nonsense solution from a brand with a genuine track record for build quality. If you're buying a gift for someone who takes their deck protection seriously, Solid Black is the safe, timeless pick.

Specifications