[divasdaddy]

I am install wood base boards and have a newer home with rounded corners, is there a standard measurement for the center piece of the round, with 22 1/2* cuts

[rusty123456]

Wow they didn't install the square base pieces there may be an after piece try trimtex.com

[rusty123456]

Bullnose Corners

Could try this place for piece wood trim

[rusty123456]

Squarzit
This could wok if you want to do drywall work

[rusty123456]

Sorry it doesn't really answer your question but they are options every corner may be slightly different best idea would be to do small test corner

[creahands]

If u use vinyl trim, it can be heated and formed to curve.

If using wood will have to back cut,wet and form around curve. Back cut would be within 3/16'' of face and about 3/8 ''apart.

Chuck

[PatcyMcn]

Try cellular PVC moldings. They are flexible and can be heated to bend further

[rtw_travel]

I mitre the long pieces of baseboard at 22.5 degrees, and then cut a very short piece with 22.5 degrees at each side to fit in between. It's a pretty good approximation of a round corner.

If you're painting them, use a filler to fill in the small gaps.