A garage concentrates nearly everything that can hurt a cat into one dim, interesting room, and a resident explorer will investigate all of it at nose height, in the dark corners, on her own schedule. Making that room safe is therefore a hazard-by-hazard clearance, beginning with the substance where a single lapse can be fatal, and ending with the hiding places where she can be trapped, crushed, or carried away unnoticed.
Antifreeze: The Headline Hazard
Antifreeze and engine coolant are sweet-tasting, which draws cats to lick spills and puddles, and they are lethal in remarkably small amounts. Every container lives sealed, inside a closed cabinet or a lidded box she cannot open, never as an open jug beside the car. Any spill, drip under a vehicle, or drained fluid is cleaned immediately and thoroughly, with the area washed down so no residue remains for paws to collect and later groom off.
There is no watch-and-wait option after exposure. A cat seen licking coolant, or found near a fresh spill with wet paws or mouth, goes to a vet immediately as an emergency, because treatment windows for this poison are measured in hours. The same urgency applies to a cat who becomes wobbly, vomits, or seems drunk after garage access — do not assume sleep will clear it; phone the vet at once and say antifreeze is possible.
Tools, Sharps, and the Rest of the Chemical Shelf
Work through the room in zones after coolant is secured. Fuels, oils, paints, solvents, adhesives, and any rodent or insect treatments move into closed cabinets or high, latched storage, with lids checked rather than assumed. Saws, blades, drill bits, loose screws and nails, and anything with a sharp edge go into boxes, drawers, or onto wall storage she cannot dislodge, because a shelf collapse onto a hiding cat injures twice — impact and scattered sharps.
Small swallowables gather in garages too: washers, cable ties, string, and offcuts. Sweep the floor properly rather than pushing debris into the corners she patrols, and keep charging cables for tools sleeved or off the floor. Electrical sockets she can reach stay covered where covers are practical, and space heaters or anything hot after use stay unplugged while she has access.
Hiding Spots: Made Safe or Blocked
List her known refuges and deal with each deliberately. The engine bay is the classic killer: a cat asleep on a warm engine is injured or killed when the car starts, so bang the bonnet and check before every start, without exception, and never rely on her moving at the sound. Open-topped storage boxes get lids, shelving voids behind paint tins get blocked with boards, and any gap leading into wall cavities or under the building gets sealed, because a cat who can enter a structure can also become trapped inside it.
Where a hiding place can be made genuinely safe — a sturdy box with bedding in a quiet corner away from the car — keep it, because an approved refuge reduces her incentive to choose dangerous ones. Just as important, the garage door itself: both a cat shut in overnight without water and a cat slipping out under a rising door into the road are prevented by a count-out-loud check before the door closes, every time.
Supervision and a Weekly Sweep
Even a cleared garage earns supervised access rather than free range while work is happening, because projects bring fresh hazards through the door daily. A brief weekly sweep at cat height — coolant dry, cabinets latched, sharps boxed, refuges intact — keeps the clearance from decaying. And should she vanish despite everything, speed matters: the Lost Pet Alert System in KinsLe notifies nearby owners immediately, and anyone who finds her can contact you directly through the alert.