Clearance Check

I moved beneath the skirt of the heavy armchair to map the shadows under its frame. Dust motes drifted through the low clearance, but nothing barred my path until my helmet grazed a dropped plastic ruler lying angled against a support leg. I knelt on one knee, pressing my thumb against the notched edge to gauge its durability. The clear synthetic slab was marked with precise numeric increments. Using the ruler as a straightedge along the floorboards, I verified that the underside clearance remains consistent throughout the sector. It offers sufficient overhead cover if a defensive perimeter is ever required.