Würth PRO600
Drawer box for Würth PRO600: sizes, notch and hook holes
Würth’s PRO600 is the 100 lb undermount runner Würth Louis and Company, Würth Baer and other Würth branches sell as their main kitchen and bath undermount line, with a 130 to 150 lb Heavy Duty version for deep pantry and base drawers. Both share one drawer box, covered together on this page, so this is the page for anyone ordering a dovetail box for either PRO600 Standard or PRO600 Heavy Duty.
Quick answer. A Würth PRO600 box, Standard or Heavy Duty, needs sides up to 5/8 in thick, an inside width of opening minus 1 21/32 in, a length equal to the slide length, and a 1 3/8 in by 1/2 in rear notch with a 1/4 in hook hole. Würth publishes the spec; tell us your exact model and we match it. The outside width works out to opening minus 13/32 in (10 mm, often written 3/8 in) with our standard 5/8 in sides, cut to the 1/32 in. The bottom recess differs by version: 9/16 in maximum on Standard, 1/2 in maximum on Heavy Duty. PRO600 does not come with its front locking device; we stock two of the five Würth clip options to press on for $5.99.
The PRO600 drawer box, dimension by dimension
Standard and Heavy Duty share the same width rule, notch and hook hole; they only split on bottom recess, load and the lengths each one comes in.
| Dimension | PRO600 Standard | PRO600 Heavy Duty |
|---|---|---|
| INSIDE DRAWER WIDTH | opening minus 42 mm (1 21/32 in) | |
| OUTSIDE WIDTH, 5/8 IN SIDES | opening minus 10 mm (13/32 in) | |
| OUTSIDE WIDTH, 1/2 IN SIDES | opening minus 16 mm (5/8 in) | |
| SIDE THICKNESS | up to 16 mm (5/8 in) | |
| BOX LENGTH | equal to the nominal slide length | |
| BOTTOM RECESS | 9/16 in (14 mm) maximum | 1/2 in (13 mm) maximum |
| MIN TOP CLEARANCE | about 1/4 in (6 mm) | |
| REAR NOTCH, EACH BOTTOM CORNER | 1 3/8 in (35 mm) wide by 1/2 in (13 mm) tall, maximum | |
| REAR HOOK HOLE | 1/4 in (6 mm) diameter, 3/8 in (10 mm) deep, centered 9/32 in (7 mm) in from the side and 7/16 in (11 mm) above the notch | |
| LENGTHS | 9, 12, 15, 18, 21 in | 24, 27, 30 in |
| LOAD, PER WÜRTH | 100 lb, BHMA, KCMA and BIFMA listed | one Würth listing gives 130 lb, another gives 150 lb; Würth’s own documents disagree |
| MOUNTING | face frame (with PRO600-RB bracket) or frameless | frameless or blocked out only, no rear bracket |
Both versions use the same rear notch and hook hole, so the difference that actually changes what we cut is the bottom recess: build to 9/16 in on Standard, 1/2 in on Heavy Duty. Neither version has a push to open option in Würth’s PRO600 catalog; soft close, starting about 2 in before fully closed, is standard on both.
About the PRO600 runners
PRO600 is a full extension, soft close concealed undermount runner built for Würth by Dongtai (DTC) under the model TS20533H. It is Würth’s main undermount line for kitchen and bath drawers, sold at 9, 12, 15, 18 and 21 in. Heavy Duty is the same mechanism scaled up for 24, 27 and 30 in pantry and base drawers, mounted frameless or blocked out since Würth publishes no rear bracket for it.
To identify PRO600, pull the drawer and look at the stamp on the metal runner member for PRO600, or the part numbers PRO600-09 through PRO600-21 on Standard and PRO600-24HD through PRO600-30HD on Heavy Duty. On a face frame cabinet, PRO600-RB adds up to about 1 9/16 in (40 mm) of reach so the runner front can sit about 3/32 in (2 mm) behind the frame; Heavy Duty has no bracket, so a face frame drawer on that length needs the cabinet side blocked out flush with the frame instead.
Clips: five Würth options, we sell two and press on any of them
PRO600 does not ship with its front locking device. Würth sells five versions of the clip, split by adjustment and whether it has a flange that tabs into the sub front:
| Part | Type | Adjustment | We sell it |
|---|---|---|---|
| PRO600-FCLIP3D | flanged, 6 way | side ±1.5 mm, height 0 to 3 mm, depth 0 to 3.5 mm | Yes |
| PRO600-FCLIP3D-NF | non flanged, 6 way | same, no sub front tab | No |
| PRO600-FCLIP2D | flanged, 4 way | height and side | Yes |
| PRO600-FCLIP2D-NF | non flanged, 4 way | height and side | No |
| PRO600-FCLIPNARROW | narrow, about 1 3/4 in (45 mm) wide | height only; for drawers under about 6 in inside width | No |
We stock PRO600-FCLIP3D ($15.06) and PRO600-FCLIP2D ($14.57) and press either one on for $5.99 when you pick it in the configurator, prices current as of October 2026. For the non flanged or narrow versions, choose No Clips and press your own on, since we do not sell those three.
Lengths and depths we build for PRO600
| Depth | Added cost over the base box | Minimum inside cabinet depth, per Würth |
|---|---|---|
| 9 in (Standard) | $0 | about 11 5/32 in (283 mm) to 11 23/32 in (298 mm) |
| 12 in (Standard) | $0 | about 12 27/32 in (326 mm) to 14 17/32 in (369 mm) with the rear bracket |
| 15 in (Standard) | $7.99 | about 15 7/8 in (403 mm) to 17 9/16 in (446 mm) |
| 18 in (Standard) | $7.99 | about 18 27/32 in (479 mm) to 20 9/16 in (522 mm) |
| 21 in (Standard) | $7.99 | about 21 27/32 in (555 mm) to 23 17/32 in (598 mm) |
| 24 in (Heavy Duty) | $9.99 | not published by Würth for this length |
| 27 in (Heavy Duty) | $12.99 | not published by Würth for this length |
| 30 in (Heavy Duty) | $14.99 | not published by Würth for this length |
Prices current as of October 2026. For the 24, 27 and 30 in Heavy Duty lengths, measure your actual cabinet and the runner itself rather than relying on a published minimum depth; we have not found one in Würth’s current documents that we trust.
Two worked examples
PRO600 Standard, 21 in opening. Your runner is stamped 21 in, with our standard 5/8 in sides. Outside width is the opening minus 13/32 in (10 mm, often written 3/8 in), so you enter 20 5/8 in as the width, pick Würth PRO600 Standard, and pick a 21 in depth. Check your cabinet has at least about 21 27/32 in of inside depth. We cut a 1 3/8 in by 1/2 in notch at each bottom rear corner, bore the 1/4 in hook hole, and build the bottom recess to 9/16 in. Add PRO600-FCLIP3D for $5.99 and we press it on before shipping.
PRO600 Heavy Duty, 27 in opening, frameless pantry base. Your runner is stamped 27 in. Outside width is still the opening minus 13/32 in (10 mm, often written 3/8 in) with 5/8 in sides, so you enter 26 5/8 in, pick Würth PRO600 Heavy Duty, and pick a 27 in depth. We cut the same 1 3/8 in by 1/2 in notch and hook hole, but build the bottom recess to 1/2 in instead of 9/16 in, since Heavy Duty’s maximum is tighter. Confirm your cabinet depth against the runner itself, since Würth has not published a minimum depth for this length that we trust enough to print.
Keep your PRO600 slides or replace them?
Keep them if they still glide, close and soft close without grinding. The box, not the runner, is usually what fails first on a stapled or doweled drawer. Unscrew the old box, screw the new dovetailed box to the same PRO600 runners at the same height, and reconnect the clip.
Replace the runners only if a member is bent, gritty or the soft close has failed, or if you are moving a drawer from Standard length to a Heavy Duty length. A new PRO600 pair in the same length and version keeps the same box.
Common mistakes with PRO600 boxes
- Using the 9/16 in recess on Heavy Duty. Heavy Duty’s maximum is 1/2 in, tighter than Standard.
- Ordering Heavy Duty at 21 in or under. Heavy Duty starts at 24 in; shorter lengths are Standard.
- Putting Heavy Duty on a face frame without blocking out. Würth publishes no rear bracket for Heavy Duty.
- Buying the non flanged or narrow clip from us. We only stock PRO600-FCLIP3D and PRO600-FCLIP2D; the other three come from your Würth branch.
- Planning Heavy Duty right at 130 lb. Würth’s own documents give two different Heavy Duty load numbers, 130 and 150 lb.
Technical sources
- Würth: PRO600 spec sheet, xcart.wurthlac.com. Revision: not stated.
- Würth: PRO600 Heavy Duty installation sheet, wurthmachinery.com. Revision: not stated.
Figures on this page were checked against these documents in October 2026. Our shop’s own rules (the 1 in side mount deduction, the cut list limits) come from how we build.
Questions
Does PRO600 come with clips?
No. Würth sells the PRO600 clip separately from the runner, in five versions. We stock two of them, PRO600-FCLIP3D and PRO600-FCLIP2D, and press either one on for $5.99; choose No Clips and install your own pair for the other three.
2D clip or 3D clip for PRO600: which do I need?
3D (PRO600-FCLIP3D) adjusts side, height and depth; 2D (PRO600-FCLIP2D) adjusts only height and side. Pick 3D if you expect to need to fine tune the drawer front forward or back after installing; 2D is simpler and less expensive.
Will a box cut for Blum TANDEM fit PRO600?
On the numbers, yes: inside width opening minus 1 21/32 in, a 1 3/8 in notch, and a matching hook hole. Blum’s 1/2 in recess fits inside PRO600’s 9/16 in maximum. Würth makes no compatibility claim in writing, and the clips are never interchangeable between the two brands, so order the box for the runner you will mount.
Can PRO600 Heavy Duty go on a face frame cabinet?
Only blocked out. Würth offers no rear bracket for Heavy Duty, so the cabinet side has to sit flush with the frame opening, the same way Standard works once you add the PRO600-RB bracket.
PRO600 Standard vs Heavy Duty: what is the difference?
Standard runs 9 to 21 in and has a 9/16 in recess maximum and a face frame bracket. Heavy Duty runs 24 to 30 in, has a tighter 1/2 in recess maximum, a higher load rating, and is frameless or blocked out only. The notch, hook hole and width rule are identical on both.
What cabinet depth do I need for PRO600 Heavy Duty?
We have not found a minimum cabinet depth figure for the 24, 27 or 30 in Heavy Duty lengths in Würth’s current documents that we are confident publishing. Measure your cabinet and the runner itself before ordering, or send us a photo and we will help you check it.
Related reading
- Notched drawer boxes, every slide model: the hub table for every runner we notch for.
- The full Würth PRO guide: PRO500, PRO560, PRO634 and PRO Eco in one place.
- Würth PRO634: the same family’s 3/4 in side version.
- Würth PRO500: Würth’s value tier runner, clips included.
- How to install undermount drawer slides: mounting and adjusting the runner.
Sources
Dimensions and part numbers come from the Würth PRO600 spec sheet and the PRO600 Heavy Duty installation sheet, which give two different Heavy Duty load figures (130 lb and 150 lb) and do not state a minimum cabinet depth for the 24 to 30 in lengths; we publish what each document says rather than inventing a number. Check the drawing for your exact runner before cutting anything yourself.
Build your PRO600 box
Pick Würth PRO600 Standard or Heavy Duty in the configurator, enter your outside width, and we cut the notch, drill the hook hole and press on a PRO600-FCLIP3D or FCLIP2D for $5.99 if you want it installed. Dovetailed, cut to the 1/32 in, built in our Las Vegas shop.