One of the easiest ways to build a cabinet or bookshelf with adjustable shelves is to drill holes for shelf pins. While there are quite a few manufactured shelf pin drill jigs out, I pretty much always make a custom template out of inexpensive pegboard. This shelf drilling jig is free if you have a scrap of pegboard in your garage! Small jigs that have to be moved many times to span the length of the cabinet are notorious for giving you wobbly shelves because it’s difficult to make sure all four holes (two on each side) end up exactly level with each other when you’re using a jig that you have to move up, insert a pin into the last hole you just drilled, clamp, and then drill some more. It’s cheaper, easier and better to make a custom shelf pin drill jig!
DIY Shelf Drilling Jig
You can cut your shelf drilling jig the same size as your cabinet sides, mark and drill all your shelf pin holes before you even assemble or drill them after assembly.
Either way MARK your shelf drilling jig with a permanent marker so you know exactly where to drill your holes and they all end up in exactly the same location.
- There is no need to drill holes all the way from top to bottom.
- Mark location of any FIXED shelves that will be permanently attached to cabinet sides.
- Start and stop holes 6-8″ from top and bottom of any fixed shelf and cabinet top and bottom.
- Shelf pin holes should be 1 1/2″ – 2″ from the outside edge of the cabinet sides.
- Pegboard holes are very close together so skip every other one. Circle the holes you will drill with a big, bold marker!
*Most importantly, write TOP at the top of your template! If pre-drilling before cabinet assembly, also write TOP on the top of your cabinet sides so you assemble your cabinet correctly.
If you are drilling your shelf pin holes after cabinet assembly, youy jig will have to fit inside the cabinet. It’s easiest to cut a piece that will span the full depth of your cabinet but if you have a scrap of pegboard that is tall enough and don’t want to purchase a whole new sheet you can make it work.
You’ll have to flip your half template to make sure the holes are exactly level from front to back so you’ll need to mark the Font and Back of this template. And make sure you mark TOP at the top of both sides. (Trust me, it’s easy to set a template down to answer the phone and pick up where you left off — only pick it up backwards and upside down!) Mark Your Template! 🙂
Now you’re ready to drill!
But wait, you need a depth stop on your drill bit so you drill your holes deep enough but not too deep.
I make my own with a scrap of wood. It like this method because it also becomes a handle to hold while you drill and helps you keep your drill straight.
I always use 1/4″ shelf pins and 1/4″ drill bit. That keeps things easy. I buy shelf pins in bags of 50 and keep tons of them on hand!
1/4″ Shelf pins – Bag of 50 for about $5 on Amazon. (Affiliate link)
- To determine how much drill bit you need sticking out of your stop block, add the length of the shelf pin shaft (part that inserts into the cabinet) and the thickness of your pegboard template. (Its about 1/2″ combined but you want to check your specific situation.)
- Insert your drill bit into the drill.
- Put your wood block up next to the drill bit and mark where you need to cut it off to leave 1/2″ (or whatever you need) of the drill bit exposed.
- Cut your wood block to the correct length and then drill through the center.
There are stop collars that you can purchase to fit on your drill bit. Drill Stop Collar 1/4″ bore size – $1.16
And this $5 1/4″ Doweling kit would actually be really handy to have on hand. It comes with a 1/4″ drill bit and stop collar plus a few 1/4″ wood dowels and dowel markers.
Or you can always use the old painters’ tape method to tell you when to stop drilling but it’s not very precise because the tape doesn’t stop the drill bit when you’ve achieved the depth you want. It just shows you when to stop drilling.
I prefer the scrap wood stop block and the scrap pegboard shelf pin jig over any of the “for purchase” items I’ve seen.
Cheap, easy and awesome is always my preferred method!