THE SIZE of this birdhouse is 7"- WIDE, 7-1/2"- DEEP 9"- HIGH.

The entrance openings size is 1-1/2" round.

Comes with no perch a PERCH can be added  upon request

Comes with a hinged side panel for easy clean out each year.

There are drain & vent openings which will help keep the nest dry and free from disease.