Triangle Corner Baseboard Supply Register

Triangle Corner Baseboard Supply Registers use a triangular fin profile to cover low-wall supply openings near the floor, where the angled face keeps a low visual profile along the baseboard. Within the Baseboard Supply Registers range, AirGrilles stocks the triangle style in 2 colors, brown and white, in steel, with widths of 12 and 14 inches at a single 6 inch height. A multi-shutter damper behind the louvered face opens and closes to control airflow volume, and the louvers sit 1/3 inch apart. For a straight, non-angled low-wall opening, AirGrilles also carries a Steel Baseboard Supply Register in the same family. Bulk pricing runs across 6 quantity tiers, orders of 500+ units qualify for custom production, and in-stock items ship the same day on orders placed by 11AM ET.

Triangle Baseboard Registers for Low-Wall Supply Air

Triangle Corner Baseboard Supply Registers cover a low-wall supply opening with an angled fin profile instead of a straight rectangular face. Within the Baseboard Supply Registers range, the triangle style is a supply product because it carries a damper for airflow control, unlike a return grille that only pulls air back to the system. The angled profile keeps the register's visual footprint low along the baseboard, which suits rooms where the opening sits close to trim or furniture. A multi-shutter damper behind the face still handles the volume, the same mechanism used across the baseboard supply range.

When to Choose Triangle Baseboard Registers

Choose a triangle baseboard register when the duct opening or room design calls for the angled fin profile instead of a straight face, such as an opening where a rectangular register would sit awkwardly against the trim. Steel Baseboard Supply Registers remain the standard choice for a flat run of wall with no angled cut. Compare the duct opening size, the outer dimensions, and the clearance around the baseboard before ordering either style. The opening's shape, not the room's size, decides between the two.

Sizes, Fin Profile, Bulk and Custom Orders

Triangle baseboard registers are ordered by the duct opening, measured width by height, never by the outer cover. The outer face runs about 1-3/4 inches larger on the width and 5/8 inch larger on the height, so a 12"W x 6"H opening uses a 13-3/4"W x 6-5/8"H face, an asymmetric overlap unique to the angled profile. For an opening at an actual wall corner instead of an angled cut, Steel Corner Baseboard Supply Registers cover that shape instead. Bulk pricing spans 6 quantity tiers: 1, 2-10, 11-20, 21-49, 50+, and 100+, with the 12"W x 6"H register falling from $31.59 at a single unit to $25.28 at the 50+ tier, close to 20% off. Orders of 500+ units qualify for custom production depending on size, finish, and lead time, and in-stock items ship the same day on orders placed by 11AM ET.

Common Questions About Triangle Corner Baseboard Supply Registers

These answers cover the profile, damper, sizing, and ordering questions that come up most on triangle corner baseboard supply registers.

Is a triangle baseboard register a supply or a return product?

Triangle Corner Baseboard Supply Registers are supply products, built with a multi-shutter damper to control the volume of air delivered into the room. A return grille of the same triangular shape pulls air back to the system and typically has no damper. Check the product listing to confirm supply or return use before ordering.

What does the multi-shutter damper do?

The multi-shutter damper is a set of parallel shutters behind the louvered face that open and close together to control how much air enters the room. It gives the same room-by-room balancing as the damper on other baseboard supply styles. Set the shutters once the room is in use and adjust as the seasons change.

How do I avoid ordering the return version by mistake?

Confirm the product is listed as a supply register with a damper, not a return grille, before ordering. Steel Triangle Baseboard Return Grilles share the same triangular profile but pull air back to the system instead of delivering it. The product title and the presence of a damper in the listing are the fastest way to tell the two apart.

How do I size a triangle baseboard register?

Measure the duct opening width and height, then order by that opening rather than the visible face. The outer face runs about 1-3/4 inches larger on the width and 5/8 inch larger on the height. Widths run 12 or 14 inches, and every model is 6 inches high.

What if the register needs to match hardwood trim instead of steel?

Wooden Corner Baseboard Supply Registers cover the same low-wall openings in natural solid oak instead of painted or powder-coated steel. The triangle steel style ships in brown and white instead. Both are ordered by the same duct opening measurement.

Is there a bulk discount on triangle baseboard registers?

Yes, bulk pricing applies automatically across 6 quantity tiers. A 12"W x 6"H register drops from $31.59 per unit to $25.28 at the 50+ tier, close to 20% off. Orders of 500+ units qualify for custom production, and in-stock items ship the same day on orders placed by 11AM ET.