Measuring

Smart Vents currently come in four sizes: 4x10, 4x12, 6x10 and 6x12. It's worth noting that the sizes are nominal, and that our vents can fit ducts up to half an inch larger or smaller than what's listed (for example, a 4.5x10.5 duct opening can fit our 4x10 Smart Vent). You can find more in-depth measurements for our vent sizes below.

To get started, you'll need a screwdriver, tape measure, and a stool (for ceiling installations). For reference, you'll want to measure the length and height of the actual duct opening, not the existing grill. We put together this short video demonstrating how to measure correctly:

Smart Vent Dimensions:

4x10
Interior Dimensions (for Duct): Height: 3.5”, Length 9.75”, Max Depth: 3”
Exterior Dimensions: Height: 5.1”, Length: 11.7”
Weight: 1.75 lbs

4x12

Interior Dimensions (for Duct): Height: 3.5”, Length 11.5”, Max Depth: 3”
Exterior Dimensions: Height: 5.1”, Length:13.7”
Weight: 2 lbs

6x10

Interior Dimensions (for Duct): Height: 5.5”, Length 9.75”, Max Depth: 3”
Exterior Dimensions: Height: 7.5”, Length: 11.7”
Weight: 2.25 lbs

6x12

Interior Dimensions (for Duct): Height: 5.5”, Length 11.5”, Max Depth: 3”
Exterior Dimensions: Height: 7.5”, Length: 13.7”
Weight: 2.6lbs

Expanded Sizes (using Trim Kits):

In addition to our four actual vent sizes (4x10, 4x12, 6x10, and 6x12), we can accommodate the following duct opening sizes thanks to our Trim Kit add-ons: 12x12, 10x10, 8x14, 8x12, 8x10, 6x14, and 4x14. Click here to read more about Trim Kits.

Trim Plate Dimensions:

4x14

Interior Dimensions (for Smart Vent): Height: 3.88”, Length:11.69”
Exterior Dimensions: Height: 6.40”, Length 17”
Weight: 0.8 lb

6x14

Interior Dimensions (for Smart Vent): Height: 5.39", Length: 11.69"
Exterior Dimensions: Height: 8.40”, Length: 17”
Weight: 1 lb 

8x10

Interior Dimensions (for Smart Vent): Height: 5.39”, Length: 9.92”
Exterior Dimensions: Height: 10.40”, Length: 13”
Weight: 1.1 lbs

8x12

Interior Dimensions (for Smart Vent): Height: 5.39”, Length: 11.69”
Exterior Dimensions: Height: 10.40”, Length: 15”
Weight: 1.3 lbs

8x14

Interior Dimensions (for Smart Vent): Height: 5.39”, Length: 11.69”
Exterior Dimensions: Height: 10.40”, Length: 17”
Weight: 1.5 lbs 

10x10

Interior Dimensions (for Smart Vent): Height: 5.39”, Length: 9.84”
Exterior Dimensions: Height: 13”, Length: 13”
Weight: 1.5 lbs 

12x12

Interior Dimensions (for Smart Vent): Height: 5.39”, Length: 11.69”
Exterior Dimensions: Height: 15”, Length: 15”
Weight: 2.2 lbs

Round vents and baseboard vents:

We do not currently have plans to support round or baseboard style vents, though we're always collecting requests for next potential development decisions! Be sure to send us your feedback as we continue working to improve the product:

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