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The Knape & Vogt 8505 Series is a 22 inch side-mount ball bearing file drawer slide rated in the 150 lb class per pair, with 1 inch of over-travel that carries the drawer past full extension — past the cabinet face, past the countertop overhang, and all the way to where hanging files at the back are actually reachable.
A standard full-extension slide brings the drawer face level with the cabinet opening — useful, but not enough when the cabinet sits under a countertop overhang or behind a deep face frame. That last inch of over-travel on the 8505 pushes the drawer box clear of the obstruction so the rearmost hanging files and dividers are visible and within reach without reaching blind into the back of the drawer. It is the spec that separates a genuinely functional file drawer from one that technically opens but still hides half its contents. The 150 lb class rating backs that up for drawers that are actually kept full.
The 8505 is cold-formed steel with a zinc finish — the industry standard for indoor side-mount ball bearing slides. Zinc provides corrosion resistance suited to the controlled environment of an office or workroom, and the steel members are sized for the file-duty class, not the lighter stock used in standard kitchen slides. The profile runs 3.79 inches tall including the quick-disconnect rail, which reflects the heavier construction this class calls for. The hold-in detent is integrated into the slide body, so there are no add-on dampers or separate mechanism parts to misplace or wear out independently.
The 8505 is the right choice when load and access both matter. At 22 inches, the slide suits a standard letter-depth or legal-depth file drawer. KV recommends a maximum drawer width of 30 inches for the over-travel 8505 series. This slide ships as a poly-pack — one pair with mounting hardware — so the count per order matches the drawer count directly. Use it in office cabinetry, built-in workroom storage, or any application where the drawer carries sustained weight and needs to open fully clear of whatever is above it.
Yes. The slide length is 22 inches (the closed dimension); the drawer member extends approximately 22 inches on its full-extension travel, then continues an additional 1 inch past that for the over-travel. Slide length and drawer travel are two separate measurements.
No. The hold-in anti-rebound detent is a mechanical catch that keeps the drawer closed once shut and prevents it from bouncing back open — there is no damper and no spring-assist closing. Push the drawer shut firmly and the detent holds it in place until pulled open intentionally.
No. The 8505 is non-handed — both slides in the pair are identical and fit either side of the drawer. One poly-pack provides a complete pair for one drawer.
The 8505 requires 1/2 inch of clearance per side, so build or size the drawer box 1 inch narrower than the cabinet opening to accommodate both slides.
The slide mounts to the cabinet interior side panel. In face-frame construction, the panel is set back from the frame, so rear mounting brackets are required to support the back of the slide. KV rear brackets for the 8505 series are sold separately and are series-specific.
When the drawer sits under an overhang and carries a full paper load, the 8505 covers both demands — 150 lb class capacity and 1 inch of over-travel — in a non-handed, zinc-finished pair that installs on standard 1/2 inch clearance.
Sold In: 1 Set
