Bird House Dimensions Chart

Common Bird House Dimensions

Bird Species	Floor Size (Inches)	Box Height (Inches)	Entrance Hole Above Floor (Inches)	Hole Size (Inches)	Entrance Hole Above Ground (Feet)
Bewick's Wren	4 x 4	6 - 8	4 - 6	1 - 1 1/4	6 - 10
Carolina Wren	4 x 4	6 - 8	4 - 6	1 1/2	6 - 10
Blue Bird	5 x 5	8 - 12	6 - 10	1 1/2	4 - 6
Chickadee	4 x 4	8 - 10	6 - 8	1 1/8	4 - 15
Hairy Woodpecker	6 x 6	12 - 15	9 - 12	1 1/2	8 - 20
Downey Woodpecker	4 x 4	8 - 10	6 - 8	1 1/4	5 - 15
Pileated Woodpecker	8 x 8	16 - 24	12 - 20	3 - 4	15 - 25
Red-Headed Woodpecker	6 x 6	12 - 15	9 - 12	2	10 - 20
Flicker	7 x 7	16 - 18	14 -16	2 1/2	6 - 20
Ash Throated Flycatcher	6 x 6	8 - 12	6 - 10	1 1/2	5 - 15
Great Creasted Flycatcher	6 x 6	8 - 12	6 - 10	1 3/4	5 - 15
House Finch	6 x 6	6	4	2	8 - 12
Nuthatch	4 x 4	8 - 10	6 - 8	1 1/4 - 1 3/8	5 - 15
Purple Martin	6 x 6	6	1 - 2	2 1/4	6 - 10
Tree and Violet Green Swallow	5 x 5	6 - 8	4 - 6	1 1/2	5 - 15
Titmouse	4 x 4	10 - 12	6 - 10	1 1/4	5 - 15
Wood Duck	10 x 18	10 - 24	12 - 16	4	10 - 20
Yellow-Bellied Sapsucker	5 x 5	12 - 15	9 - 12	1 1/2	10 - 20
Barred Owl	12 x 12	23	12	3 1/2	10 - 30
Barn Owl	10 x 18	15 - 18	4	6	12 - 18
Screech Owl	8 x 8	12 - 15	9 - 12	3	10 - 30
*These Birds prefer nesting on a platform
American Robin	7 x 8	8	-	-	6 - 15
Phoebes	6 x 6	6	-	-	8 - 12
Barn Swallow	6 x 6	6	-	-	8 - 12