Blum Tandem drawer slides

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Forum topic by akdale posted 08-16-2009 12:03 AM 5627 views 0 times favorited 13 replies Add to Favorites Watch
View akdale's profile


54 posts in 3449 days

08-16-2009 12:03 AM

I am considering using the Bulm tandem slides so my dovetails are not covered. Drawers oare 23 deep by 30 wide. Anyone installed these and if so how hard were they to get right. Noticed a special jig and cutouts are necessary.

-- Phil 4:13------Our family motto

13 replies so far

View Les Hastings's profile

Les Hastings

1305 posts in 4014 days

#1 posted 08-16-2009 01:16 AM

Blum doesn’t make a slide for a 23” deep drawer. They come 21’ and 24” The box has to be made to fit the drawer. 21” slide takes a 21” deep box, 24” slide takes a 24” deep box and so on. The side gaps are different to, 3/16” gap between the drawer box and the case, each side. 3/8” total for two sides. They require a1/2” space from the bottom of the box to the bottom of the drawer bottom. You will also need about 7/8” of space behind the drawer box for the slide to install correctly.

The are a great slide its all we ever use anymore.

-- Les, Wichita, Ks. (I'd rather be covered in saw dust!)

View huff's profile


2828 posts in 3526 days

#2 posted 08-16-2009 02:50 AM

Akdale, I commented on your blog, but I see here that you say your drawers are 23” deep. Les is right. Blum doesn’t make an undermount slide for a 23” drawer box. For a 24” Deep Cabinet, you need to make a drawer box that is 21” deep. The cut out on the back of the drawer is easy to do and the drilling jig for the hole in the back is not expensive. Hope we’ve answered most of your questions.

-- John @

View Moron's profile


5032 posts in 4134 days

#3 posted 08-16-2009 03:00 AM

you can make your 23” guide work by moving the clips that mount to the bottom of the drawr back but only if you have the depth in the cabinet to do so as this also moves where you mount the drawer guide in the cabinet

-- "Good artists borrow, great artists steal”…..Picasso

View akdale's profile


54 posts in 3449 days

#4 posted 08-16-2009 03:30 AM

Thanks guys. I have not made the drawers yet so this is all very good info. I cna make them 21” deep no proble

-- Phil 4:13------Our family motto

View akdale's profile


54 posts in 3449 days

#5 posted 08-16-2009 05:22 AM

Thanks bentlyj. I read somewhere the slides were not DIY friendly. Did not scare me off but just wanted to be sure it was not going to be a royal pain

-- Phil 4:13------Our family motto

View kolwdwrkr's profile


2821 posts in 3831 days

#6 posted 08-16-2009 06:12 AM

Once you know the required diminsions they are a breeze. Make sure you check for the thickness of the drawer material too. 1/2” drawers require 5/8” off the width, and 5/8” requires 3/8” off the width I believe. Regardless to if I have those numbers swapped they are different. They can also accomodate 3/4” material, you just have to know how much to deduct from the opening. Good luck and make sure to post your project

-- ~ Inspiring those who inspire me ~

View Dan Lyke's profile

Dan Lyke

1520 posts in 4366 days

#7 posted 08-16-2009 07:06 AM

What others have said: No need for the fancy jig, just measure and think a little bit and they’re pretty easy to get right.

-- Dan Lyke, Petaluma California,

View rhett's profile


742 posts in 3908 days

#8 posted 08-16-2009 02:59 PM

Best slides on the market. IMO you can’t go wrong with any Blum products. If you are doing any number of drawers I do suggest their jig, or make your own, for drilling the proper hole in the rear of the drawer. The precision and diameter of this hole determine the adjustability of the drawer box. Pay a few dollars more and get the softclose slides.

-- Doubt kills more dreams than failure.

View GFYS's profile


711 posts in 3712 days

#9 posted 08-16-2009 09:05 PM

As I recall I made my own jig. I also used the blumotion closers. Customer was extremely satisfied and the drawer operation is very impressive…but the cost is some what high. I would use them again if possible.

View Steven Naslund's profile

Steven Naslund

12 posts in 3742 days

#10 posted 08-20-2009 10:37 PM

They have these slides with the Blumotion built in. Just be careful to follow the dimension advice in the Tandem catalog and everything will work fine. There is actually some allowance in the slides for slightly out of square or slightly mis-sized drawers but I would not push it. They are really great quality stuff. I do have the cheap drilling jig that lets you drill the holes for the pins into the drawer backs and the clips under the drawer fronts. Not necessary but they are convenient if you are doing a bunch of them. I also used these on a face frame cabinet and that makes it a little more complex. I like these slides a lot and would use any of Blum’s products.

-- Steven Naslund, Chicago IL

View Scott 's profile


103 posts in 3600 days

#11 posted 08-21-2009 02:27 AM

The company I work for supplies the steel Blum uses and I can tell you that they spare no expence. Their matls are not cheap and they hold their suppliers to the highest standards. Hate to sound like a sales person but it’s just a darn good product.

-- Scott, South Carolina

View Dan Lyke's profile

Dan Lyke

1520 posts in 4366 days

#12 posted 08-21-2009 02:44 AM

Since people are raving about the Blum slides, I’ll toss in a bit here: I asked a question about drawer slides here on LumberJocks, and got some unexpected responses, which led to a longer piece on evaluating drawer slides, Blum, Accuride, and "cheap chinese knock-offs", with video of closing action, on my own web site.

Summary: There’s bits about the Accurides that I like better (I prefer their drawer removal mechanism), but the Blums were able to catch a big heavy drawer full of cast iron pots and close it softly.

-- Dan Lyke, Petaluma California,

View akdale's profile


54 posts in 3449 days

#13 posted 08-21-2009 04:55 AM

Dan, I actually read your review and loked at your videos on you tube before posting here. Much appreciate the effort you went through. It does seem like the Blum corner has it. One thing I also notice in your write up though was the customer service at accuride was exceptional. I took the email address you provided and the rep got back to me in 1 day with great feedback.

-- Phil 4:13------Our family motto

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