Undermount Drawer Slides DEMYSTIFIED || The Recreational Woodworker 

The best video on Blum under-mount slides. The way you measure for the drawer width using the installed slides is simply genius! I think I can actually do this and not have to redo it 3 times to have it come out right. Thanks!!

Simple and easily understood. Nice job. Anyone and everyone that is ever installed these drawer slides and referred to the manufacturer's directions just wanted to put a brad nail through their skull!

Thank you -- The blum slides come with instructions I need an engineer to understand. The trick about measuring the width was most important.

saving a step on captive box slides is brilliant - thanks!

This is by far the best tutorial I seen on this. Thanks

EXCELLENT Video! For real. Exactly what I was looking for. The jigs for drilling the hole, not making the back go all the way down so I don't have to notch. Perfect tips.

I was quite impressed! You have a knack for teaching. Keep up the good work!

This was so informative. A really really great tutorial! Thanks pal. Top notch..

Very helpful video, wish I found it a week ago! Just used these slides for the first time all a bit confusing, your video was the most straight forward in helping understand how easy these slides can be 👍

Great video. I found your channel searching for a cabinet project for my Class A RV remodel. My plan is to build a box and mount my exhisting drawers in it. (and do upgraded soft close slids on the drawers.) Then modify the exhisting OEM cabinet for the new box (that has the drawers in it) by using undermount slides like you show here. The top of the box will be covered in counter top that matches the rest of the coach. (Former Secretary Desktop) This will give me more food prep space and can also be used as a laptop table to the couch that is next to that kitchen cabinet. In my interior remodel I've lost some cabinets and countertop space so this will allow me to regain this. Good video, I can see how these undermounts will give me more spacefor the box so I can reuse the original oak faced drawers. And yes, those drawers will slide out of the new box like before. Think camp kitchen style like one would build to put in the back of a pickup where they usually have the stove and sink in the top.

Blum could learn from your video, I did. Thanks for a clear and straight forward explanation in American inches. Good job!

Some good looking/sounding video and audio! Loving the upgrades! 😁

explicaste muy bien era lo que yo buscaba simple explicación por eso me suscribí en tu canal y te di un like , sorry i dont write good ingles, thanks so much.

Great video Robert. I have found that the easiest way to figure out drawer size is to measure the opening snd subtract 42 mil. Which is 15/8". This gives you the front/back dimensions. Thanks, love your channel.

Wow! Thanks for a lovely video. This makes me understand these slides.

Great video! That is really helpful!

Super helpful video! I agree they look a lot cleaner when extended and are so satisfying to close. I was wondering what the purpose of the pins in the back was but enforcing the right length and vertical adjustment makes sense!

Nicely done video. Thank You.

Very helpful... Thanking you sir🙏

Good video. I like the slop on these things but I hate them. Lol. Ones we are using always angle down instead of being flat against the front (the release levers under front)

great video robert.

You need to let people know that the measurements are different with thinner drawer sides. And that there are different slides for different width of drawer sides. 1/2-5/8 and 3/4 thick material use different slides 😏

Great job! Now I understand!

These drawer slides have bene around for the better half of a decade and this is arguably the first video that goes through this process thoroughly. Great job! Only question is, what is that set-back thing during slides installation?

Currently my drawers have no slides at all. They fit very nice within the carcass. I plan on making new doors and drawer fronts this summer.

Great video thank you!

Great video !

How do you determine the set back of the rails?

Well done. Curious about the back of your drawer box without the notches. Going to check out your build a drawer box video!

First time to watch your channel. Very informative. Is it hard to install on pre-existing drawers?

Nice explanation. Me personally, i notch the back board. Seems resetting table saw to cut a different length and then also having to under nail your drawer bottom would take twice as much vs just notching the back out. Just another opinion

I think Michael Williams comment about thickness of drawer slides is very important, perhaps consider an addendum to this video to explain, It would be most helpful and avoid potential mistakes by future viewers.

Thank you

Thanks for this video! I have the slides and jig ready! Can you tell me what the “setback” is on a face frame cabinet? I can’t seem to find it anywhere. Thanks!

Greetings and thanks for the fabulous tutorial. So will this or something similar work to mount under or on the sides of a plastic or aluminum (battery) tray?? Thinking converting my bench seats into a storage space whereby I can install a sliding platform/shelf for three 12 volt deep cycle (fairly heavy) batteries.

great video

This is great, but you don't talk about the depth. I'm installing these with no back wall to measure against. My plan is to put two drawers back to back with a 1" gap. Reading the engineering documentation for the 9" Blum draw slide, my min is 11-1/8" and the max is 12-3/4". If I read this correctly I can make my drawer 11-1/4" deep. That will give the 1" I am looking for between the two drawers. In fact I could make that 11-1/2" giving me 1/2" between both. This makes sense now. Thanks

Great video! What the depth of your front set back for the draw slide? I use half dovetails when making my drawers which calls for a little tricky measuring for the draw size. After watching your video I change to pocket holes.

You did not mention how you measured the depth of the drawer and why.do you have that offset.

i love you. thank you lol

all of these install videos go to great detail on how to measure width but my question is how do you predetermine the drawer opening height?

There are some differences with inset drawer fronts, yes?

Do these work if drawer bottom is flush with drawer sides? No recess underneath the drawer. Looking to use these for a slide out drawer under sink or stove for pots and pans. Using side mounts, I lose 10 inches (5" on each side) for spacer need.

I need undermount slides that are under and attach to cement foundation or a board fit. I have a center island in place that was tiled around. Too hard to drill in back and drawer will be 52” wide.

Where do you buy these slides? Great video.

this would be a great video if you used metric!

How did you determine the draw depth? Is it 21" (in a 21" version for example) from the very front of the draw slide to the rear, or 21" from the front to the back of the pin? Maybe I'm thinking to much and just build the draw to whatever size it says on the draw slide box

Can you provide info on mounting stews?

Would you please share the sizes of the drill bits you used for the front and the back?

How much set back you go? For the slides

CIW - 2"=Bottom + (3/4+3/4)=your drawer

What kind of tape measure do you use?

If i have side mounts, can I just swap to under mounts or no?

Nice! GoPro mix or a external mic?

Wow great video. If I’m doing inset faces how do I know how far back to install the slide?

Thank you so much for the video What about from to back measurements? I’m planning to make few drawers. What size do I need for 24” total deep X 38”1/2 Wide , And I’m not using double board at the front. Can you please help me ? 22” will work ?

me likey

YOU SPENT MORE TIME ON YOUR DRILL BIT STOPER THAN YOU DID ON HOW LONG THE TOTAL LENGHT OF THE SLIDE NEEDS TO BE !!!

thank you