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Triangular Baseboard Registers

Triangular Baseboard Diffuser - Baseboard Registers

Our Triangular Baseboard Registers are available in a variety of different sizes, designs and finishes! Each product page gives a complete sizing breakdown giving you base projection, top projection, height, length and pricing. We have everything from basic white metal registers to completely customizable and decorative registers. We also have a plastic baseboard register option in White or Brown.

"How do I measure for a baseboard register?"

When ordering any kind of vent cover or register the rule of thumb is to make sure you are measuring the hole opening size in your wall or floor. For baseboard registers it is important you measure nearly everything - what that means is you want to measure the hole opening size, the space between your baseboard that the register will fit into, the base projection and height and for extra measure, you can measure your existing register. Having all of these measurements makes the process of finding something that is sure to work for you easy and fast! Please see each individual product page for overall measurements, including base projection and height, on all baseboard registers.

Check out our Browse Triangular Baseboard Vents by Size page. This allows you to view the exact styles of triangular baseboard return grilles available in the size you need.

  Classic Metal Classic Plastic Extended Height Extended Depth 4 Foot Wicker Gravity Style
White White Steel Baseboard Register Plastic White Baseboard Triangular Baseboard Register Soft White Baseboard Register 4 Foot White Baseboard Register White Wicker Baseboard Register Vintage Baseboard Vents - Gravity Baseboard Registers
Golden Sand / Brown   Plastic Brown Baseboard Register Triangular Baseboard Register   4 Foot Brown Baseboard Register    
Antique Brass/
Satin Nickel/
Oil Rubbed Bronze

Tru Air Oil Rubbed Bronze Baseboard Register

Satin Nickel Baseboard Register


Wicker Antique Brass Diffuser

Oil Rubbed Bronze Wicker Baseboard Register

Designer Colors/
Afforable Decorative Baseboard Registers   Shoemaker Designer Color Baseboard Register Custom Decorative Baseboard Diffuser In Stock Decorative Baseboard   Black Gravity Baseboard Diffuser - Decorative Baseboard Register



TruAire Red Oak Wood Baseboard Diffuser - Unfinished
(0 reviews)  
SKU: 49-0115

Unfinished baseboard diffusers will allow you to stain them to match your wood floors or trim. Suitable for rear and bottom feed baseboard duct holes. Available in 15" and 18" sizes.

White Steel Baseboard Register
(0 reviews)  
SKU: 61-0500#

Find basic baseboard diffusers in 15, 18, and 24 inch lengths. The sunburst design creates three way air deflection. These White Steel Baseboard Registers measure 4.5 inches tall.

White Baseboard Register - Extended Height
(0 reviews)  
SKU: 24-0101#

5.5" tall baseboard registers perfect for tall wall base. Durable stamped steel construction with white powder coat finish.

White Baseboard Register - Triangular
(0 reviews)  
SKU: 24-0072

Extended depth triangular baseboard registers are now available for new or remolded homes! This metal air vent measures 3 3/4" at the bottom and features a single plate damper for your heating and cooling needs.

4 Foot Metal Baseboard Register - White
(0 reviews)  
SKU: 49-0001

Find our white 48 inch registers for the baseboard with an adjustable damper for unbeatable comfort control. These measure 4.5 inches in height.

4 Foot Metal Baseboard Register - Brown
(0 reviews)  
SKU: 24-0080#
These 48 inch baseboard registers are a solid choice with their steel construction. Have hard to find 48 inch baseboard diffusers shipped straight to you in no time.
Wicker Baseboard Register - White
(0 reviews)  
SKU: 61-0498#

Durable and decorative baseboard diffusers have a removable faceplate for easy maintenance and installation. 15 inch & 18 inch lengths.

Wicker Baseboard Register - Antique Brass
(1 reviews)  
SKU: 61-0007#

Wicker style baseboard registers have an adjustable damper to easily control air flow. The plated antique brass finish is sure to bring warmth into any space.

Brown Baseboard Register - Extended Height
(0 reviews)  
SKU: 24-0105#
Made from a durable steel, this 5.5" baseboard air register is finished in a driftwood tan, brown color. Purchase today and install it in a snap.

Designer Color Baseboard Register - Extended Height
(0 reviews)  
SKU: 875-DES-15-WARM

These metal baseboard registers are 5.5 inches tall and come in your choice of 7 non-traditional color finishes. These decorative vents are simply mounted to the wall when installing. 15 inch, 18 inch and 24 inch lengths are available. This item is considered Special Order, Non-Returnable and cannot be canceled once placed.

Custom Wood Vents - Wood Baseboard Covers
(0 reviews)  
SKU: 64-0025#

Custom wood baseboard covers available in standard lengths and hard-to-find sizes like 12 inches and 30 inches. Unfinished custom wood vents can be stained or painted to match your baseboard trim. This item is Special Order, Non-Returnable and cannot be canceled once placed. Order today!

Steel Crest Custom Baseboard Register
(0 reviews)  

SteelCrest Baseboard Registers are great for anyone looking to mix customizability with durablility. These items compiment any room they are installed in. Available in 32 designs and 14 brilliant powder coat finishes. Choose from 6 sizes. This item is considered Special Order, Non-Returnable and cannot be canceled once placed.

Brazilian Cherry Wood Diffuser - Natural Finish
(0 reviews)  
SKU: 20537

Hard-to-find Brazilian Cherry wood baseboard vents. Add warmth to any room by installing baseboard vent covers with a clear finish. Shipped straight to your door!

Brazilian Cherry Wood Baseboard Diffuser - Unfinished
(0 reviews)  
SKU: 20533

Hard-to-find Brazilian Cherry wood baseboard vents. Available unfinished so you can stain to match your trim. Shipped straight to your door!

Vintage Baseboard Vent - White Gravity Baseboard Register
(1 reviews)  
SKU: 1312GBW#

Replace old central gravity baseboard registers with these bright, attractive white vintage baseboard vents. Hard-to-find triangular baseboard register sizes of 13x12 and 15x12.

Gravity Baseboard Diffuser - Decorative Black Baseboard Register
(0 reviews)  
SKU: 1312GBB

Decorative baseboard register in a hard-to-find gravity style. This black baseboard register features an attractive grid design. The bottom projection of this gravity baseboard diffuser is 2.5 inches. This decorative gravity baseboard is only available in the size 13x12.

Steel Crest Basic Series Baseboard Register
(0 reviews)  

Purchase this affordable decorative baseboard register for your home for an instant room upgrade. These beautiful baseboard vent covers are available in 15, 18 or 24 inch lengths. With 3 designs and 4 powder-coated finish options, there truely is something for everyone. This item is considered Special Order, Non-Returnable and cannot be canceled once placed.

Bronze Series Victorian Baseboard Register
(0 reviews)  

Modernize your space with our heavy duty Steel Crest Victorian Baseboard Registers. Find them in the sizes 15", 18" and 24" and they come in three standard finishes. .

Stocked in limited quantity.

TruAire Oil Rubbed Bronze Baseboard Register
(0 reviews)  
SKU: 49-0109.

Most baseboard registers only come in white metal... Not anymore! Take a look at our beautiful Oil Rubbed Bronze Finish baseboard registers!

TruAire Satin Nickel Baseboard Register
(0 reviews)  
SKU: 49-0111.

Looking for something to set your home apart from others? Get these NEW Satin Nickel Baseboard Registers to add a new look to your home in seconds!

TruAire Plastic Brown Baseboard Register
(0 reviews)  
SKU: 49-0105.

Looking for a plastic baseboard register for your mobile home or bathroom? Look no further! 

TruAire White Plastic Baseboard Register
(0 reviews)  
SKU: 49-0106.

These plastic baseboard registers are just what you're needing to ensure your baseboard registers won't rust over time! 

Wicker Oil Rubbed Bronze Baseboard
(0 reviews)  
SKU: 61-0110#

This plated Oil Rubbed Bronze finish Wicker Baseboard Register is sure to enhance your homes overall feel. With an adjustable damper, you can control the airflow in any room!