20 Inch Pencil Drawer Slide For Under-Desk and Workstation Installations

The Knape and Vogt 8250 pencil drawer slide in the 20 inch length is a 3/4-extension, under-mount runner built to carry pencil trays, keyboard platforms, and shallow utility drawers beneath desks, workstations, and cabinets. Its variable height mounting adjusts to fit the clearance you have, making it a practical solution for retrofit and custom installs alike.

Key Features

• Variable height mounting adapts the slide to different under-surface clearances without custom shimming.
• 20 inch nominal length suits deeper desks and longer pencil trays than shorter variants in this series.
• 3/4 extension brings most of the tray into reach while keeping the slide geometry compact beneath the surface.
• Hold-in anti-rebound motion keeps the tray seated at rest and stops it from bouncing back open after a firm close.
• 75 lb weight capacity per pair handles the load of a full pencil tray, keyboard, or shallow storage drawer.
• Anochrome finish over steel resists corrosion in typical indoor office and shop environments.

What the 20 Inch Length Handles

At 20 inches, this slide accommodates longer pencil trays and wider keyboard platforms that a shorter slide cannot support. The under-mount position keeps the hardware out of sight beneath the work surface, leaving the sides of the drawer cavity clear. The 3/4 extension opens most of the tray length past the cabinet face — enough to reach pencils, accessories, and keyboard comfortably — while the rear of the tray stays supported inside the mount. This is a specialty slide for shallow, under-surface applications; it is not a substitute for a full-depth kitchen or cabinet undermount slide.

Construction and Finish

Steel members carry the 75 lb per-pair rating through the 8250's working range. The anochrome finish is a zinc-based electroplate that protects the steel from corrosion in dry indoor conditions — office furniture, built-in desks, and shop workbenches. The polybag packaging contains one pair of slides, ready to install.

Where This Slide Works Best

The 8250 series is designed around office furniture, home office built-ins, and light-duty workstation cabinetry. The 20 inch length is the right pick when the desk or cabinet runs 20 to 22 inches deep and the pencil tray needs to match that depth. Shops producing multiple workstations or built-in desks will find the polybag packaging convenient for bench assembly. The hold-in detent keeps trays parked during daily use without the effort of a positive lock — a practical feature on drawers that get opened and closed dozens of times a day.

A Reliable Under-Surface Runner at the Right Length

Match the 20 inch slide to a tray built for its length, mount it under your desk or cabinet surface, and the 8250 delivers hold-in convenience and 75 lb capacity without taking up any of the drawer opening on the sides.