Knape and Vogt 18 inch soft close drawer slides are full extension, ball bearing, side mount slides rated in the 200 lb class, so they support demanding drawer loads while still allowing drawers to open their full length for clear access to stored items. The 8850 Series construction uses a ball bearing design, which provides smooth travel under load and helps drawers track consistently in cabinetry. A soft-close module with patented Force Management Technology delivers low opening pull force while controlling closing speed, which matters when drawers are loaded and must close without slamming. The non-handed design means each slide can mount on either side of the drawer, simplifying layout and reducing part sorting on the job. With an 18 inch nominal length, these slides suit medium-depth drawers where installers want heavy-duty performance in kitchens, shops, or office cabinetry.
The Knape and Vogt Model 8850 18 inch slide is side mounted, so it relies on precise side clearance to run properly in cabinets. Recommended side clearance is 0.765 inches plus 0.03 inches minus 0 inches, which defines the space between the drawer side and cabinet side to keep the ball bearing members aligned. The slide width is 0.76 inches, allowing it to fit within that side clearance while still supporting the ball bearing raceway. A height of 2.09 inches gives the vertical profile of the slide, which helps installers coordinate drawer box height relative to openings and other hardware. Recommended fasteners are #8 x 5/8 inch flathead screws, which match the manufacturer guidance for securing the slide to both drawer and cabinet members. The 18 inch length fits applications where the cabinet depth suits that nominal slide size.
The 8850FMB 18 slide is recommended for drawers up to 42 inches wide, so it is suited for wide storage drawers in cabinetry where span can cause racking. This makes the slide practical for base cabinets holding tools, supplies, or bulky items that concentrate weight across a broad drawer. The 200 lb class rating works with that width recommendation, because the slide construction is designed to support high load drawers through the full extension stroke. A full extension design lets these wide drawers pull entirely clear of the cabinet face, which is useful when accessing items near the back on deeper 18 inch drawers. The side mount configuration and 2.09 inch height work with typical cabinet side panels and drawer box designs, so installers can integrate these slides into standard carcass construction. The zinc finish noted in the SAP description identifies the slide appearance as zinc, matching common cabinet hardware.
The specified side clearance of 0.765 inches plus 0.03 inches minus 0 inches sets a tight range for the gap between drawer and cabinet sides, which helps keep the ball bearing members parallel so they roll smoothly under load. A slide width of 0.76 inches occupies most of that gap, leaving a controlled running clearance that supports consistent motion over time. The 2.09 inch height gives the slide enough vertical structure to handle the 200 lb class rating, which matters when drawers are loaded heavily and cycled repeatedly. The soft-close module with patented Force Management Technology provides low opening pull force, so users start drawer movement easily, while the damped closing action helps the drawer shut without slamming at the end of travel. Lever release construction lets installers separate the drawer and cabinet members, which is useful for fitting drawers to openings, making fine adjustments, or servicing cabinetry after installation.
The 8850FMB 18 is a Knape and Vogt 18 inch full extension, side mount, ball bearing, soft-close drawer slide in the 200 lb class, so it supports heavy drawers while offering smooth travel and soft-closing action.
The 8850FMB 18 slide is recommended for drawers up to 42 inches wide, which means it is suited to wide cabinet drawers where additional span support and resistance to racking are important.
The Knape and Vogt 8850 18 inch slide uses a recommended side clearance of 0.765 inches plus 0.03 inches minus 0 inches, which sets the gap needed between drawer and cabinet sides for correct running alignment.
The 8850FMB 18 slide uses recommended fasteners of #8 x 5/8 inch flathead screws, which match the mounting holes and support secure attachment to both the cabinet and drawer members.
The Knape and Vogt 8850 Series uses a soft-close module with patented Force Management Technology, which provides low opening pull force and controlled dampening at closing to limit drawer slamming.
The 8850FMB 18 is a non-handed drawer slide, so the same model functions on either the left or right side, simplifying inventory and installation layouts.
The Knape and Vogt 18 inch soft close drawer slides 8850FMB 18 combine a 200 lb class rating, full extension travel, and soft-close ball bearing action, so they suit wide drawers up to 42 inches that carry substantial loads. Side mount installation, defined side clearance, and lever release help installers fit the slides into standard cabinets while maintaining alignment and service access. When a project calls for 18 inch, zinc finish, non-handed slides with controlled closing and heavy load capability, choosing this 8850 Series model from Wurth Baer Supply supports a consistent, job-ready hardware standard across cabinetry runs.
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