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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 Decorative Metal Classic Plastic Extended Height Extended Depth 4 Foot Gravity Style
White White Steel Baseboard Register White Decorative Baseboard Register Plastic White Baseboard Triangular Baseboard Register Soft White Baseboard Register 4 Foot White 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

Antique Brass Decorative Baseboard Register

Oil Rubbed Bronze Decorative Baseboard Register

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


4 Foot Metal Baseboard Register - Brown
(0 reviews)  
SKU: 49-0002

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.

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.

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.

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-D-15-WW

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.

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.

Imperial Decorative Baseboard Register - Antique Brass
(1 reviews)  
SKU: RG4083

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

Imperial Decorative Baseboard Register - Oil Rubbed Bronze
(0 reviews)  
SKU: RG4081

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

Imperial Decorative Baseboard Register - White
(0 reviews)  
SKU: RG4079

Durable and decorative baseboard diffusers have a removable faceplate for easy maintenance and installation. Available in 15 and 18 inch sizes.

Reggio Scroll Baseboard Register
(0 reviews)  
Scroll Baseboard Registers from Reggio add a classic style and timeless elegance to your home. Crafted from steel with a black finish and adjustable damper to control air flow.
Shoemaker 875 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.

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.

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.

TruAire Brown Steel Baseboard Register
(0 reviews)  
SKU: 49-0094

TruAire Brown Baseboard Registers are available in three common lengths; 15", 18" and 24". These baseboard vents have an adjustable damper and a removable faceplate for easy installation! 

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 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 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.

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 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! 

TruAire White Steel Baseboard Register
(0 reviews)  
SKU: 49-0091

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.

Unfinished Wood Baseboard Returns - Red Oak Custom Wood Vents
(0 reviews)  
SKU: 64-0026

Custom wood baseboard covers available in standard lengths and hard-to-find sizes like 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!

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.

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.