Undermount Drawer Slide Built for Thick-Sided, Heavy Drawers

The Grass Dynapro 24 inch undermount slide is a full-extension, soft-close concealed runner engineered specifically for drawer boxes with 5/8 to 3/4 inch sides, rated 132 lb per pair. It brings the load capacity and synchronization of Dynapro's heavy-duty tier to the installations where thicker drawer material is the standard.

Key Features

• 132 lb weight capacity per pair — the heavy-duty Dynapro rating, suited to deep, loaded kitchen and utility drawers.
• Full extension — the entire drawer box comes out to the cabinet face, giving complete access to the back of a 24 inch drawer.
• Integrated soft-close — a liquid damper catches the drawer near the end of travel and settles it shut without slamming.
• Built for 5/8 to 3/4 inch drawer sides — this version accommodates the thicker drawer sides common in hardwood and solid-bottom box construction.
• Fits face-frame and frameless cabinets — one slide version handles both construction types with the correct rear mounting hardware.
• Roller-bearing carriage, zinc-finished steel — smooth, quiet travel under heavy loads, built for years of indoor service.

Where This Slide Earns Its Place

A 24 inch drawer built for heavy use — pots-and-pans pullouts, file and utility drawers, deep pantry boxes — puts real demands on the slide system. At 132 lb per pair, this Dynapro version handles those loads without requiring an upgrade to a specialty heavy-duty product line. The 24 inch nominal length suits standard base cabinet depths, and the full-extension travel means nothing stays hidden at the back of the drawer. Because Dynapro's synchronization is built into the slide itself, both sides of the pair track together even on wider drawers, with no add-on rod or synchronization kit required.

The 5/8 to 3/4 inch side-thickness range is the key distinction from the standard Dynapro version. Shops building drawer boxes from 3/4 inch solid hardwood, thick plywood, or dovetailed material with heavier sides need this version — the standard 5/8 inch model is a different slide and the two do not interchange. Minimum installation depth is 24-7/8 inch, so confirm the cabinet's interior depth before ordering.

Construction and Finish

Steel members with a zinc finish handle years of indoor use. The roller-bearing carriage delivers a smooth, quiet pull across the full 24 inch travel, and the concealed undermount position keeps all hardware out of sight when the drawer is open. Side clearance is 6mm per side, so build the drawer box to Grass's published specification for this series, including the correct box width for the 6mm clearance, bottom recess, rear notch, and drilling for Dynapro front locking devices. The locking devices and any rear mounting brackets required for face-frame installs are series-specific Dynapro components — they do not interchange with other brands or Grass series.

Who Should Order This Version

This slide is the right choice for cabinet shops building solid-wood or thick-plywood drawer boxes at the 24 inch depth — particularly where the drawer will carry sustained weight day to day. Designers specifying handle-less kitchens with heavy drawer pulls will find the 132 lb rating leaves meaningful headroom. Contractors and shop owners who regularly work with 3/4 inch drawer material will want to stock this version alongside the standard 5/8 inch Dynapro to cover both box types. If the drawer sides are thinner — 1/2 to 5/8 inch — the standard Dynapro version is the correct slide instead.

Frequently Asked Questions

The Right Slide for the Heaviest 24 Inch Drawers

Match this Dynapro version to a properly spec'd 5/8 to 3/4 inch drawer box, confirm your cabinet depth, and add the series hardware your construction requires — the result is a concealed, soft-close undermount built to carry the load and last through years of daily use.