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BCM 3-Chamber Bat House

Colony Bat House by Schrodt Designs

Bat Condominium

Victorian Bat House

Backyard Bird
3 Chamber

Canadian Bat Nursery

Holley 3 Chamber Bat House

Photo

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Size

18'' wide x 24'' high

7'' wide (guess) x 17'' high (stated)

9.5'' wide x 19'' high

15'' wide x 30'' high

16'' wide x 24'' high

18'' wide x 41'' high

10'' wide x 14.75'' high

Weight

15 lbs.

<10 lbs.?

10 lbs.

14 lbs.

14 lbs.

33 lbs.

5 lbs.

Exterior Material

1/2'' exterior yellow pine plywood + 1.75'' sides

Looks like cedar?

Looks like 0.75'' pine

Probably cedar

0.75'' Cedar planks on all sides

3/4'' birch plywood with "rubber membrane technology"

0.75'' Cedar

Glued Seams?

Yes, all seams

No

No

Unknown

Yes

Unknown

Partially

Fasteners

Screws

Probably brad nails

Probably brad nails

Unknown

Probably brad nails

Unknown

Unknown

Avg. Baffle Spacing

3 @ 3/4''

Unknown

4 @ Unknown

2 @ Unknown

3 @ Unknown

2 @ Unknown

2 @ 0.75'', 1 @ 1''

Landing plate size

Minimum 4''x18''

About 5''x2''

None

About 14''x4''

About 16'' x 4''

18'' x 6''

None

Roughened interior

Roughened at random intervals by hand

Unknown

Unknown

Unknown

Screened

Machine grooved at set intervals

None

Ease of mounting

Screws through mounting lip at top of box and also the landing plate. Bracket suggested for post mounting.

Might hang like a clock?

Hook on back, hangs like a clock.

Screws through mounting lip at top of box and also the landing plate.

Screws through mounting lip at top of box and also the landing plate.

Unknown

Needs bracket that is included

BCI Approved?

Yes

No

No

No

No

No

No

Realistic capacity if successful

About 100 bats

No claim. About 20 bats if single chamber.

Claims "over 50 bats". Probably less than 100 bats

No claim. About 30 if this is a single chamber

About 100 or less despite claims of 300

About 75 or less despite claims of 300

No claim. Less than 50 bats

Finishing required

Paint according to geographic area. Affix included shingle to roof and screen to landing plate.

None intended

Paint according to geographic area, though there is no indication there is a manual explaining this.

None intended

Paint according to geographic area, though there is no indication there is a manual explaining this.

None

Paint according to geographic area.

Cost

$79.00 shipped anywhere within the continental USA. Kit version available for $59.00

$56.00 + shipping

$40.00 + shipping

$89.00 + shipping

$67.00 + shipping

Over $50.00 + shipping

About $20? + shipping

Pros

Proven design. Just add bats!

Fairly nice finish, reminiciant of wind chimes?

4 chambers, bigger is better except...

Doesn't look like a bat house. Has landing plate and a sturdy mounting method.

Based on a modern design

If "rubber membrane technology" means the whole thing is sprayed with truck bed liner, that's great! Nice landing plate.

Might be sealed?

Cons

May be hard to stock in the summer.

Small. Needs to be caulked and painted black for most of the country, defeating the purpose of the finish.

...the width is only 9'', so no advantage over a BCM design. Small hook attachment probably puts the bat house on the ground after time and a windstorm. No landing plate. Needs caulked.

Built "against the grain" meaning there are fewer natural bat footholds. A poor design where the maker attempts to simulate "bats behind shutters" without really understanding why

Screen fasteners will rust from bat urine and fall out. Roughen the interior, add a shingled roof, extra caulk, and a paint job.

"RMT" might be caulking. Louvers seem to imitate the "Victorian" model at left for no good reason.

Questionable interior roughening. No landing plate. Ad contradicts itself. Very small dimensions. Made with used wood. Comes with an unrelated ad for laser engraving on the front?

See why our bat house mops the floor with others.
Searching the web for bat houses leaves even us bewildered. We decided to put together comparisons of some commercial bat houses available simply by doing a search for "bat house". Unfortunately many vendors do not mention many construction specifics, leaving us to make some educated guesses based on the product photos.

A green color code represents a desirable bat house feature. Orange suggests the feature is unclear from the vendor's description, or may pose a long term problem. Red is a fatal blow that directly impacts the potential success of your bat house. Please see our related page on why bat houses fail.

Internet Bat House Shoot Out

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