21 Undermount Drawer Slides (2024)

FAQs

What size drawer slides do I need for a 21 inch cabinet? ›

You should order the same glide length as the length/depth of your drawer box (21" depth drawer box = 21" undermount glides). Our undermount glides come in 3" increments from 12" to 21" with the most popular length being 21".

For side-mount and center-mount slides, typically measure the distance from the front edge of the cabinet to the inside face of the cabinet back and then subtract 1". For undermount slides, measure the drawer length. Slides must be the same length as drawer to work properly.

Quality and Durability. Expensive heavy-duty drawer slides are often crafted from premium materials, such as stainless steel or high-grade steel alloys. These materials offer enhanced durability, corrosion resistance, and the ability to withstand heavy loads over time.

The Drawbacks of Undermount Drawer Slides

Be aware of the following when making your decision: Higher cost: Undermounts can be more expensive than side mount options. You may want to consider some alternatives if you're on a tight budget. Complex installation: Precise installation is essential for undermount slides.

To determine the drawer slide length, start at the back of the box and measure to the front without including the drawer's face. Once you have the length, round the number down; for example, if the drawer is 20 ½ inches long, you will need to purchase 20-inch drawer slides.

Measure Drawer Depth

If you're installing undermount drawer slides, measuring the height of your drawer is doubly important, as they require more vertical clearance. Also measure from the floor of the cabinet to the bottom of the drawer — undermount runners need at least a half-inch of space here.

Knowing the height and width of a drawer will be necessary when deciding how to choose undermount drawer slides. Measure properly to assure you get the right slides. A large, deep drawer will require a different undermount slide than your smallest drawer, for instance. Decide how you want the drawer to close.

They provide a clean, modern look that many homeowners appreciate. Durable: Undermount slides are made of high-quality materials that make them durable and long-lasting. They can withstand a lot of wear and tear, making them an ideal choice for drawers that are used frequently.

What is the difference between a drawer glide and a drawer slide? ›

Ball bearing drawer slides are also known as rails, runners, and sliders, but they are not the same as glides. A glide uses thin rails on both mounting surfaces, and include plastic wheels on the drawer side allowing movement.

Decide which size drawer slide you need based on the following scenarios: Scenario 1 – If the drawer box itself is 20” from front-to-back (Measurement A), you can use a 20” drawer slide.

Because a 24” deep cabinet will have an interior depth that's slightly less than that dimension, your drawer slides need to be smaller, too. KV's installation instructions show that the next size down from 24” is 22”, so that's your slide length and drawer depth.

Head over to the cabinet where you plan to install the drawer, and then measure the opening the drawer will fit into. Carefully measure the height and width of this opening and record the measurements. To finish sizing for a new box, you will need to know the specific hardware you will be using.