Review full manual instructions prior to use for important safety information. Always check Rockler.com to confirm that you are using the most recent manual version for your product.

Blum® Tandem Drawer Slide InstructionsEffective May 2019

2

GENERAL SAFETY WARNINGS

This product is designed only for specific applications as defined in the instructions and should not be modified or used for any manner not described in these instructions. Use only recommended accessories. Before using the Blum Tandem Drawer Slides: READ, UNDERSTAND and FOLLOW ALL INSTRUCTIONS AND SAFETY WARNINGS. KEEP THESE INSTRUCTIONS READILY AVAILABLE FOR FUTURE REFERENCE.

> Always confirm that you are using the most recent version of the Instructions and safety warnings for your product (see the Instructions link on the product page at Rockler.com).

> Before using another tool with this product, always read, understand and follow the instructions and safety warnings in the owner’s manual for that tool. If you do not have the owner’s manual, obtain one from the tool’s manufacturer before using it with this product.

> Before using any chemical with this product, always read, understand and follow all safety warnings and guidelines in the manufacturer’s Safety Data Sheet (SDS; formerly called “MSDS”), especially regarding: • How to safely use the chemical, including potential hazards and recommended first aid measures; • Personal safety equipment required to safely use the chemical (e.g. gloves, eye protection, mask/respirator, etc.); • Proper and safe handling, storage and disposal of the chemical.

> Before using this product, review and verify that all tools to be used with it have safety equipment installed and are in proper working order as defined by the tool’s owner’s manual.

> Do not use this product until you have read and are confident you understand: • Table 1 - Inside Cabinet Depth Requirements for Overlay Applications (p. 3); • Table 2 - Runner Setback and Inside Cabinet Depth Requirements for Inset Applications (p. 3); • Assess Mounting Application and Measure Cabinet Opening (pp. 4-5); • Check Drawer Specifications (p. 5); • Prep the Drawer (p. 5); • Install the Runners in the Cabinet (pp. 6-7); • Bottom Mounting (p. 8); • Making Adjustments (p. 8).

> The user assumes all risk and responsibility for the proper and safe use of this product and for ensuring product suitability for the intended application.

> It is the sole responsibility of the purchaser of this product to ensure that any anyone you allow to use this product reads and complies with all instructions and safety precautions outlined in this manual prior to use.

> Follow all standard shop safety practices, including: • Keep children and bystanders away from the tool operating area; • Do NOT use power tools in explosive environments, or in the presence of flammable liquids, fumes or dust; • TURN OFF AND UNPLUG all power tools BEFORE making any adjustments or changing accessories; • Remain alert and use good judgment. Do not use this product if you are in any way impaired by medications, alcohol, drugs or fatigue; • Keep your work area well lit and clean; • Dress appropriately. Secure loose clothing, remove all jewelry and tie up long hair before using this product; • ALWAYS wear safety glasses, hearing protection and respiratory protection that complies with NIOSH/OSHA/ANSI safety standards; • Use dust collection tools and dust face masks to reduce exposure to dust; • Use safety equipment such as featherboards, push sticks and push blocks, etc., when appropriate; • Maintain proper footing at all times and do not overreach; • Do NOT force woodworking tools.

> These warnings and instructions do NOT represent the total of all information available regarding tool safety, use and technique. Always seek out opportunities to learn more and improve your skills and knowledge.

Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known ot the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.

Danger indicates a hazardous situation that, if not avoided, will result in death or serious injury.

Warning indicates a hazardous situation that, if not avoided, could result in death or serious injury.Caution indicates a hazardous situation that, if not avoided, may result in minor or moderate injuryor property damage.Notice indicates important or helpful information and/or user tips.

BP0918

3

Nominal Slide Length

Maximum DrawerSub-Front Thickness

Slide Setback

Minimum Inside Cabinet Depth

Face Frame Maximum Inside Cabinet Depth

Frameless Maximum Inside Cabinet Depth

9" (229mm) 5/8" (16mm) 1/8" (3mm) 1015⁄32" (266mm) 1125⁄32" (299mm) NA

12" (305mm) 5/8" (16mm) 1/8" (3mm) 1229⁄32" (328mm) 149⁄16" (370mm) NA

15" (381mm) 5/8" (16mm) 1/8" (3mm) 1529⁄32" (404mm) 179⁄16" (446mm) NA

18" (457mm) 5/8" (16mm) 1/8" (3mm) 1829⁄32" (480mm) 209⁄16" (522mm) NA

21" (533mm) 5/8" (16mm) 1/8" (3mm) 2115⁄16" (557mm) 2319⁄32" (599mm) NA

TABLE 1 - INSIDE CABINET DEPTH REQUIREMENTS FOR OVERLAY APPLICATIONS

Nominal Slide Length

Sub-Front Thickness

Drawer Front Thickness Slide Setback Minimum Inside

Cabinet DepthMaximum Inside Cabinet Depth

9" (229mm)

1/2" (13mm)

5/8" (16mm) 11/16" (17.5mm) 111⁄8" (282.5mm) 123⁄4" (324.5mm)

3/4" (19mm) 13/16" (20.5mm) 111⁄4" (285.5mm) 127⁄8" (327.5mm)

7/8" (22mm) 15/16" (23.5mm) 113⁄8" (288.5mm) 13" (330.5mm)

5/8" (16mm)

5/8" (16mm) 13/16" (20.5mm) 111⁄4" (285.5mm) 127⁄8" (327.5mm)

3/4" (19mm) 15/16" (23.5mm) 113⁄8" (288.5mm) 13" (330.5mm)

7/8" (22mm) 11⁄32" (26.5mm) 111⁄2" (291.5mm) 131⁄8" (333.5mm)

12" (305mm)

1/2" (13mm)

5/8" (16mm) 11/16" (17.5mm) 131⁄2" (342.5mm) 151⁄8" (384.5mm)

3/4" (19mm) 13/16" (20.5mm) 135⁄8" (345.5mm) 151⁄4" (387.5mm)

7/8" (22mm) 15/16" (23.5mm) 133⁄4" (348.5mm) 153⁄8" (390.5mm)

5/8" (16mm)

5/8" (16mm) 13/16" (20.5mm) 135⁄8" (345.5mm) 151⁄4" (387.5mm)

3/4" (19mm) 15/16" (23.5mm) 133⁄4" (348.5mm) 153⁄8" (390.5mm)

7/8" (22mm) 11⁄32" (26.5mm) 137⁄8" (351.5mm) 151⁄2" (393.5mm)

15" (381mm)

1/2" (13mm)

5/8" (16mm) 11/16" (17.5mm) 161⁄2" (418.5mm) 181⁄8" (460.5mm)

3/4" (19mm) 13/16" (20.5mm) 165⁄8" (421.5mm) 181⁄4" (463.5mm)

7/8" (22mm) 15/16" (23.5mm) 163⁄4" (424.5mm) 183⁄8" (466.5mm)

5/8" (16mm)

5/8" (16mm) 13/16" (20.5mm) 165⁄8" (421.5mm) 181⁄4" (463.5mm)

3/4" (19mm) 15/16" (23.5mm) 163⁄4" (424.5mm) 183⁄8" (466.5mm)

7/8" (22mm) 11⁄32" (26.5mm) 167⁄8" (427.5mm) 181⁄2" (469.5mm)

18" (457mm)

1/2" (13mm)

5/8" (16mm) 11/16" (17.5mm) 191⁄2" (494.5mm) 211⁄8" (536.5mm)

3/4" (19mm) 13/16" (20.5mm) 195⁄8" (497.5mm) 211⁄4" (539.5mm)

7/8" (22mm) 15/16" (23.5mm) 193⁄4" (500.5mm) 213⁄8" (542.5mm)

5/8" (16mm)

5/8" (16mm) 13/16" (20.5mm) 195⁄8" (497.5mm) 211⁄4" (539.5mm)

3/4" (19mm) 15/16" (23.5mm) 193⁄4" (500.5mm) 213⁄8" (542.5mm)

7/8" (22mm) 11⁄32" (26.5mm) 197⁄8" (503.5mm) 211⁄2" (545.5mm)

21" (533mm)

1/2" (13mm)

5/8" (16mm) 11/16" (17.5mm) 221⁄2" (571.5mm) 241⁄8" (613.5mm)

3/4" (19mm) 13/16" (20.5mm) 225⁄8" (574.5mm) 241⁄4" (616.5mm)

7/8" (22mm) 15/16" (23.5mm) 223⁄4" (577.5mm) 243⁄8" (619.5mm)

5/8" (16mm)

5/8" (16mm) 13/16" (20.5mm) 225⁄8" (574.5mm) 241⁄4" (616.5mm)

3/4" (19mm) 15/16" (23.5mm) 223⁄4" (577.5mm) 243⁄8" (619.5mm)

7/8" (22mm) 11⁄32" (26.5mm) 227⁄8" (580.5mm) 241⁄2" (622.5mm)

TABLE 2 - RUNNER SETBACK AND INSIDE CABINET DEPTH REQUIREMENTS FOR INSET APPLICATIONS

4

Assess Mounting Application and Measure Cabinet OpeningBefore attempting to mount your Blum Tandem drawer slides, you need to know whether your cabinets are frameless or have face frames, and whether your drawers are inset (i.e., they are flush with the front edge of the cabinet or face frame when closed) or overlay (i.e., they overlap the drawer opening). These variables affect the mounting specifications.

You also need to make sure you have the right length of slides for your installation. Measure the height, width and depth of the opening into which the drawer will be installed. Note that the inside cabinet depth is the distance from the front of the cabinet side or face frame to the cabinet back.

Refer to Tables 1 and 2 on page 3 to determine the inside cabinet depth and runner setback specifications for your particular application. Keep in mind that the nominal lengths of Blum Tandem slides refer to the exact length of the drawer and not to the length of the slide or inside depth of cabinet opening. For example, a 9" Blum Tandem slide fits a 9" long drawer, measures 103⁄16" in overall length and is designed for installation in a cabinet with an inside opening depth of at least 1015⁄32" in overlay applications (the minimum cabinet depth for inset applications will be different). The maximum inside cabinet depth applies only to face frame applications in which you plan to use the included rear mounting brackets. If you will be mounting the slides to

full-length blocking attached to the sides of your cabinet (or to the cabinet sides themselves in frameless applications), those maximum dimensions do not apply.

Check Drawer SpecificationsBlum Tandem drawer slides require very specific drawer dimensions. As a result, these slides are not recommended for retrofit applications.

Build your drawer so that it conforms to the specifications shown in Fig. 1. Pay particular attention to the required inside drawer width, the required clearances around the drawer box and the recess required under the drawer bottom. If your drawer is not sized according to the specifications, you will not be able to use Blum Tandem slides.

Prep the DrawerOnce you have a drawer sized to work with Blum Tandem slides, you need to modify the drawer back to accept the slides and install the locking mechanisms on the drawer bottom.

1. Cut 13⁄8" wide x 1/2" deep notches in the bottom corners of the drawer back (beneath the drawer bottom) to accommodate the slides. The notches need to be flush with the drawer sides and bottom. Fig. 2.

Frameless Cabinet Face Frame Cabinet

5

2. Drill 6mm diameter x 13/32" (10mm) deep holes in the back of the drawer at the locations shown in Fig. 2. to accommodate the hooks on the back of the slides’ runners.

3. Attach the Locking Devices to the front corners on the underside of the drawer. The Locking Devices aren’t interchangeable, so be sure to get them in the appropriate corners. (The orange plastic piece that can be compressed should face the middle of the drawer.) Use the screws provided, taking note that they need to be driven at a slight angle.

Jig-It® Undermount Drilling Guide (50713, sold separately) can help you drill the holes for the drawer components go more quickly and easily. It includes both drill bits required, as well as stop collars and a jig that allow you to quickly set the drilling depth and drilling positions.

Depending on the drawer front material, you might need to drill pilot holes before installing the Locking Devices. Jig-It® Undermount Drilling Guide (50713, sold separately) includes the appropriate drill bit with stop collar and sets the drilling angle automatically.

Fig. 1

Fig. 2

9/16"

1/2"115⁄32"

5/8" Maximum

13/16"

Drawer Opening Width Minimum 1/4"

Drawer Opening Height

Drawer Opening Height minus 25/32"

9/32"

7/16"

1/2"13⁄8"

6mm x 13/32" Deep

6

Install the Runners in the Cabinet

Follow the instructions below for your mounting application.

If you are mounting to a cabinet that has face frames, you will need to add blocking to the cabinet sides or use the rear-mount brackets that came with your slides. Either way, it is crucial that the slide runners be mounted square to the cabinet opening, parallel to each other and level.

Full Overlay Applications

1. Position one drawer slide runner at the desired height on the appropriate side of the cabinet, setting it back 1/8" from the front edge of the cabinet face. If the cabinet has a face frame, rest the front of the slide on the face frame cross rail.

2. Make sure the drawer slide runner is level from front to back. If mounting directly to the cabinet side or to blocking that

extends the length of the runner, attach the runner initially with screws in at least two of the elongated holes. If mounting to a face frame cabinet using the rear-mount brackets, attach the runner to the face frame with a screw in one of the front holes (making sure to maintain the 1/8" setback) and then attach the rear bracket to the cabinet back initially by driving a screw in each of the elongated holes. The elongated holes allow adjustments to be made after a test fit of the drawer and before installing all mounting screws.

3. Repeat Steps 1-2 for other drawer slide runner.

4. Test fit the drawer: Extend the runners fully and place the drawer on the runners, making sure the hooks on the back of the runners fit into the holes you drilled in the back of the drawer. Push the drawer closed; the Locking Devices will automatically engage with the runners.

5. Check the drawer’s closed position and note any adjustments that need to be made on each side. Open the drawer and remove it by squeezing the orange handles on the Locking Devices and pulling the drawer straight up and out.

6. If necessary, nudge the slide runners forward or backward and, if you are using the rear-mount brackets, slide the brackets up or down to achieve the necessary adjustment. Then secure the runners in their final position by driving screws in the locations shown in Fig 3 and 4.

Blum Tandem slides are “handed” slides, meaning that one set of runners is for the left side of the drawer/cabinet and one is for the right. Be sure to determine the correct orientation before attempting to install.

The Undermount Drawer Slide Jig (57268, sold separately) is specifically designed for installing Blum Tandem concealed drawer slides. It holds the slide level and in position so you can drive the mounting screws.

If you are installing slides in a face frame cabinet without blocking that extends all the way to the back, you should fit the rear-mount brackets on the rear of the slide runners before proceeding further.

Slide runners must be attached with screws in locations highlighted in Full Overlay Applications to achieve the specified load capacities.

Fig. 3 - Face Frame Full Overlay Applications

Fig. 4 - Frameless or Complete Blockout Face Frame Full Overlay Applications

Screw Placement

Screw Placement

Face Frame

Rear Bracket

1/8"

1/8"

7

Inset Applications

1. Position one drawer slide runner at the appropriate setback from the cabinet face. (Find the correct setback for your drawer sub-front and drawer front thickness in Table 2 on page 3) If the cabinet has a face frame, make sure the bottom of the runner is even with the face frame cross rail.

2. Make sure the drawer slide runner is level from front to back. If mounting directly to the cabinet side or to blocking that extends the length of the runner, attach the runner initially with screws in at least two of the elongated holes. If mounting to a face frame cabinet with partial blocking at the front and rear-mount brackets at the back, attach the runner to the blocking with a screw in one of the front holes (making sure to maintain the setback) and then attach the rear bracket to the cabinet back initially by driving a screw in each of the elongated holes. The elongated holes allow adjustments to be made after a test fit of the drawer and before installing all mounting screws.

3. Repeat Steps 1-2 for other drawer slide runner.

4. Test fit the drawer: Extend the runners fully and place the drawer on the runners, making sure the hooks on the back of the runners fit into the holes you drilled in the back of the drawer. Push the drawer closed; the Locking Devices will automatically engage with the runners.

5. Check the drawer’s closed position and note any adjustments that need to be made on each side. Open the drawer and remove it by squeezing the orange handles on the Locking Devices and pulling the drawer straight up and out.

6. If necessary, nudge the slide runners forward or backward and, if you are using the rear-mount brackets, slide the brackets up or down to achieve the necessary adjustment. Then secure the runners in their final position by driving screws in the locations shown in Fig. 5 and 6.

If you are mounting slides in a face frame cabinet, you will need to use partial blocking at the front of the cabinet and rear-mount brackets at the back or blocking that extends the full length of the slide runner.

If you are installing slides in a face frame cabinet without blocking that extends all the way to the back, you should fit the rear-mount brackets on the rear of the slide runners before proceeding further.

Slide runners must be attached with screws in locations highlighted in Inset Applications to achieve the specified load capacities.

Fig. 5 - Face Frame Partial Blockout Inset Applications

Fig. 6 - Frameless or Face Frame Complete Blockout Inset Applications

Screw Placement

Blockout

Face Frame

Rear Bracket

Setback (Table 2 on page 3)

Setback (Table 2 on page 3)

Screw Placement

8 Distributed by Rockler Companies, Inc. Medina, MN 55340

Rev 05/19 44034 51675 43841 46974 47648

Check Rockler.com for updates. If you have further questions, pleasecontact our Technical Support Department at 1-800-260-9663 or support@rockler.com

Bottom MountingBlum Tandem slides now incorporate mounting holes that allow the slides to be secured to the floor of a cabinet, especially useful for face-frame cabinets. To mount to the floor of the cabinet, position the slides as shown in Fig. 8, making sure the slides are parallel to eachother, and install screws in the highlighted holes.

Making Adjustments1. To adjust drawer height, push the gray adjustment lever on each Locking Device on the underside of the drawer forward or backward until the drawer is positioned as desired. Maximum adjustment: 1/8". Fig. 9.

2. To adjust the tilt of the drawer, rotate the tab located on the back of each drawer runner/carriage (mounted in the cabinet) until the drawer is plumb. Fig. 10.

Fig. 8 - Bottom Mounting

Fig. 9

Fig. 10

1/8"

Screw Placement