Use what to cut thick Japanese mat?
 

I always use gardening scissors but not easy. Need alot of effort.
Can share more ideas?
Thank you.

Pen knife, those with a thicker blade

Pen knife best. but remember to have something below the mat if not will have scratches on your floor or table

I use kitchen knife.
And chopping board.
Usually i only need a small amt per time

Thanks all.

Those big kitchen scissors for cutting chicken meat good for this. Need a sharp new one.

I tried, end up broke the plastic handles wrapping the metal blades...

Also be careful not to use brute strength. Made that mistake once and pull all the way pass my table and onto my thigh. 3inch cut. Lucky not too deep but end up with 1inch scar...
Be careful.

Dun forget to sharpen the knife before cutting. It helps a lot.

Thermal knife, like those used for styrofoam project work is best. The edges are also annealed, making the mat less likely to come apart or shed.

Do outside tho. The fumes are bad.