Best is to use a tablesaw or router table to put a tongue on the hardwood.
Can you round edges on hardwood plywood.
It will also finish far better assuming you will apply some type of finish.
It can be trimmed using a craft knife but a cleaner cut can be achieved by using an edge banding trimmer.
Just be careful that none of the nails come blowing up through the top of the plywood.
It s the only product of those we tested that can be used effectively in a handheld router.
A common method for applying an edge treatment is to apply a piece of hardwood stock to the edge that either matches the plywood or compliments the plywood to create a contrasting look.
Tongue and groove.
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Banding can t slip up or down on the edge of the plywood during glueup and clamping.
Edge banding is a band of veneer with heat activated or pressure sensitive adhesive that is applied to the edges of the plywood.
Hardwood boards for nosing are available at home centers and lumberyards.
Then you can use a router to run a corresponding groove into the plywood edge.
Routers or woodworking videos.
If you prefer a routed edge you can leave the banding say 1 8 proud of the veneer and then rout a 1 8 round over.
A virtue of hardwood edge banding is it will hold up far better over time.
If you want a 3 4 in x 3 4 in nosing you ll have to rip it on a table saw or have it ripped at the.
After you have routered the profile you could pop a few nails into the plywood as well.
Not totally necessary but if i have time i run the plywood edges past a table saw sanding disc prior to gluing.
Double edge banding trimmers on wood don t work well b c the grain is running opposite directions you can get tear out.
Wood magazine s bob wilson shows you how you can make rounded corners of any radius time after time with a simple jig.
It really gives a nice clean edge.
To clean up the look without covering or hiding every edge you can just cover them with a strip of self adhesive veneer edge banding.
Make rounded corners with your router.
You could certainly skip all this and glue and nail a 3 4 round onto the edge of the plywood like you suggested earlier.
A groove can be cut into either the plywood or the hardwood edging and then a corresponding tongue can be cut out of the opposite material.
Edge banding is not that difficult to apply.
This simple method makes plywood look more like a solid board without the upcharge.
Plus there are several species of edge banding available to match the plywood that is being used.