Bed mat and cutting out for factory bed holes?

[Pete_k]

Ordered the new 3500 with the factory puck system in the bed. Now I did not get the factory spray in bed liner. Going to put the rubber bed mat in when it makes it here. But would like to cut around all 5 circle covers in the bed. Figure if I cut the new mat to fit those parts. That would allow me to use the 5th wheel frame and the goose neck ball. While still having the mat in place. Anyone find a easy way to lay out mat to fit these and cut the mat?
I'm thinking hole-saw and lay the mat down with the covers off the puck sections. Then find the center of those holes. Cut out big enough for the whole cover on each.
Will be spraying the white Bed Liner on the sides of the bed. Along with the tailgate next spring/Summer. But want the floor to only have the bed mat.
Sorry for such a long winded question. But these days I'm bad about this.

Pete

[mike_kellie]

When using any products to transfer an outline, be it chalk, ink or paint, the mat needs to be dropped in place correctly the first time. No sliding or shifting!
You might be able to get an impression once it is centered-

[rhagfo]

Just wondering how thick your mat is? The seems much more than 1/4” could cause issues with fit.

[Bedlam]

Rub chalk on the pucks and lay the mat down to transfer chalk to the underside so you know where to drill with hole saw. Maybe even slightly under
size the holes so they have to be stretched over any lip?

[mike_kellie]

Make a card board template. Youtube any video about scribing (countertops, flooring) and see if it makes sense. A saying instilled in my youth..."trust your marks"
Then go wild with the power tools!