How much weight can these slides hold?

The pair is rated for 250 lbs. That rating assumes both slides are mounted square and level and the load is spread across the drawer.

What does 3-fold full extension mean?

The drawer pulls out until it is fully clear of the cabinet, so you can reach the whole drawer. Standard slides stop partway.

What length drawer do these fit?

They are 20.87 inches long, so they suit drawers roughly 20 to 21 inches deep. Measure the drawer box, not the cabinet opening.

Can I mount them under the drawer?

No. These are side-mount slides and attach to the drawer sides and cabinet walls.

One pair of slides, meaning two rails for one drawer. Mounting screws are not listed, so check before installing.

Will the locking design keep a drawer shut while driving?

The dual locking design is meant to hold the drawer in place. For RV and truck use, confirm the lock engages firmly on both sides after mounting.

Where is the Heavy Duty Drawer Slides 20 Inch cheapest?

At Walmart, for $32.50, as of our latest check.

What do buyers say about the Heavy Duty Drawer Slides 20 Inch?

Rated 5 out of 5 from 6 ratings.

Where can I buy the Heavy Duty Drawer Slides 20 Inch?

2 stores we checked sell it, including Walmart, Amazon.

AsterOutdoor

Heavy Duty Drawer Slides 20 Inch

Best price now

$32.50at WalmartChecked 5 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

AsterOutdoor

Heavy Duty Drawer Slides 20 Inch

Best price now

$32.50at WalmartChecked 5 h ago

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

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Price facts

Lowest price today: $32.50 at Walmart (checked Nov 14, 2026).

Our take on the Heavy Duty Drawer Slides 20 Inch

These are a pair of side-mount drawer slides in galvanized high-hardness steel, rated for 250 lbs. They use double-row ball bearings with nylon cushioning for smooth, quiet travel, and a 3-fold full extension so the drawer opens all the way. A dual locking design holds the drawer in place. They suit heavy shop, cabinet, RV and truck drawers where standard slides flex or sag. Against lighter-duty slides, the load rating and full extension are the main advantages; the trade-off is a bulkier 19.5 mm profile and side-mount only.

Best forHeavy shop and garage drawersRV and truck storage buildsIndustrial cabinets and shelvingVending and equipment drawers

Pros

250 lb load rating per pair
3-fold full extension for full drawer access
Double-row ball bearings run smooth
Nylon cushioning keeps travel quiet
Galvanized finish resists rust and wear
Dual locking design holds the drawer

Cons

Side-mount only, no under-mount option
Thick 19.5 mm profile needs a wide gap
Heavy steel adds weight to the build
Locking mechanism adds a step to every open

Heavy Duty Drawer Slides 20 Inch prices at every store

WalmartNew
In stock
$32.50Checked 5 h ago
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Heavy Duty Drawer Slides 20 Inch price history

Lowest price we've seen: $32.99 on Nov 11 at Amazon. Tracked across 1 store since Nov 11.

About the Heavy Duty Drawer Slides 20 Inch

These 20-inch heavy-duty drawer slides are sold as a pair. Each slide is made of high hardness steel with a galvanized finish, which resists rust and wear. They mount to the side of the drawer.

The slides use a 3-fold full extension, so the whole drawer can be pulled out for full access. Double-row ball bearings and nylon cushioning give smooth, quiet movement. A dual locking design keeps the drawer secure, and each pair supports up to 250 lbs.

They are used in shelving, cabinets, industrial drawers, RVs, trucks and vending machines.

Length: 20.87 in (530 mm)
Width: 2.09 in (53 mm)
Thickness: 0.77 in (19.5 mm)
Weight capacity: 250 lbs
Material: High hardness steel with galvanized finish
Extension: 3-fold full extension
Mounting: Side mount
Features: Dual locking design, double-row ball bearings, nylon cushioning
Quantity: 1 pair
Applications: Shelving, cabinets, industrial drawers, RV, trucks, vending machines

Specifications

color: OtherSource
size: 20Source

Questions and answers

How much weight can these slides hold?: The pair is rated for 250 lbs. That rating assumes both slides are mounted square and level and the load is spread across the drawer.
What does 3-fold full extension mean?: The drawer pulls out until it is fully clear of the cabinet, so you can reach the whole drawer. Standard slides stop partway.
What length drawer do these fit?: They are 20.87 inches long, so they suit drawers roughly 20 to 21 inches deep. Measure the drawer box, not the cabinet opening.
Can I mount them under the drawer?: No. These are side-mount slides and attach to the drawer sides and cabinet walls.
What is in the box?: One pair of slides, meaning two rails for one drawer. Mounting screws are not listed, so check before installing.
Will the locking design keep a drawer shut while driving?: The dual locking design is meant to hold the drawer in place. For RV and truck use, confirm the lock engages firmly on both sides after mounting.
Where is the Heavy Duty Drawer Slides 20 Inch cheapest?: At Walmart, for $32.50, as of our latest check.
What do buyers say about the Heavy Duty Drawer Slides 20 Inch?: Rated 5 out of 5 from 6 ratings.
Where can I buy the Heavy Duty Drawer Slides 20 Inch?: 2 stores we checked sell it, including Walmart, Amazon.