So I got the pieces of plywood cut for the skin at Lowe’s but they weren’t the best cuts… What would be the best way to get rid of the excess? It’s about 1cm all around
A few options, I can think of.
Jig saw and a steady hand put some tape on top of plywood where blade will touch not to burn or scar wood (wouldn't matter if your Painting it)
Circular saw could work if your confident in your ability. (Use tape same as above)
A hand saw as well would just would take alot of swear effort.
If you have access to a table saw that would be best way for precesion. Not worth buying one for this.
Yet above methods will definitely work just take your time.
One more option I can think of is to drop another sheet of plywood maybe some cheap stuff under, your top layer to match the height or a peace of panneling on top.