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Fit answer

Does a 100-card double-sleeved deck fit the Ultimate Guard Boulder 133+ (Return to Earth)?

Section A–ATo scaleLIMIT~100 card capacity
100%of capacity

It fits

100 double-sleeved cards fit in the Ultimate Guard Boulder 133+ (Return to Earth).

Community verifiedfrom a real-world fit report
How we know
  1. Community-verified: 100 double-sleeved cards fit in the Ultimate Guard Boulder 133+ (Return to Earth) (The community's standard workaround for the Boulder 100+ problem: size up to the 133+ for a 100-card double-sleeved Commander deck in thick sleeves. Ultimate Guard rates the 133+ for 133 double-sleeved cards 'in Ultimate Guard sleeves', which leaves ample slack for 100 in Dragon Shields.).
The gear in this check
Dragon Shield Matte Sleeves (Standard Size)Amazon KMC Card Barrier Perfect Size Inner Sleeves (Standard Size)Amazon Ultimate Guard Boulder 133+ (Return to Earth)Amazon

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Other boxes that fit this stack too

Same 100 cards, room to close the lid.

Ultimate Guard Sidewinder 100+ XenoSkinUltra Pro Satin Tower Deck BoxUltra Pro Eclipse PRO 100+ Deck BoxDragon Shield Double Shell

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Sources

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