Biscuits to align a workbench top during glue up?

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Forum topic by skogie1 posted 08-30-2015 12:37 AM 993 views 0 times favorited 9 replies Add to Favorites Watch
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117 posts in 1357 days

08-30-2015 12:37 AM

I’ve got a 7’, 4.25” thick, beech benchtop to glue up. It’s 2’ wide and in 2” strips so there are 12 planks to glue together. I plan on doing it in stages. I’m thinking of using some biscuits to help align but I’m not sure if that’s a good idea or not. Anyone have any thoughts on this? Pros and cons? Thanks in advance.

9 replies so far

View TheFridge's profile


9444 posts in 1480 days

#1 posted 08-30-2015 12:47 AM

Don’t see why not. At worst, you might have a small void on the inside of a couple of your dogholes that you never see unless you look for it.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View canadianchips's profile


2600 posts in 2991 days

#2 posted 08-30-2015 01:02 AM

I use biscuits for my harvest table tops. It made glue and clamping a lot easier.

-- "My mission in life - make everyone smile !"

View rwe2156's profile


2920 posts in 1475 days

#3 posted 08-30-2015 01:12 AM

You should be able to keep things lined up pretty good with boards that thick.

Its really an unnecessary extra step you’re gonna have to level the top anyway, right?

-- Everything is a prototype thats why its one of a kind!!

View cabmaker's profile


1730 posts in 2803 days

#4 posted 08-30-2015 01:51 AM

I use em every chance I GET !

View Pezking7p's profile


3217 posts in 1645 days

#5 posted 08-30-2015 01:55 AM

Use the biscuits but plan around any dog holes or vises or plane stops, etc. the biscuits will save you a lot of planing later on.

Also, it’s rarely mentioned but make sure your jointed edges are square before glue up. Sounds obvious but it’s worth mentioning.

-- -Dan

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117 posts in 1357 days

#6 posted 08-30-2015 02:39 AM

Thanks gentlemen. I’m attempting to minimize the amount of planing that I will need to do. The plan is to glue three boards together at a time, giving me 4 sections. Then run each of the four glue ups through the thickness planer. Then I’ll glue the 4 pieces together into two separate sections. Then I’ll run them through the thickness planer. Finally I’ll glue the two halves together creating the benchtop. At this point I’ll need to hand plane as it will not fit through the planer. I’m hoping that by doing it this way I can really reduce the amount of hand planing that I’ll need to do. Sounds like there’s no unseen drawbacks to using biscuits so I’ll go ahead as planned (other than positioning to avoid dog holes). Thanks again.

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117 posts in 1357 days

#7 posted 08-30-2015 02:41 AM

And Pezking, yes, I spent nearly four hours getting my freaking jointer as true as possible before doing this job. Ever use the Oneway Multi Gauge? Once I got my hands on that it was a snap. Great little tool.

View Fred Hargis's profile

Fred Hargis

4981 posts in 2487 days

#8 posted 08-30-2015 01:19 PM

I just built a new bench top a few months ago. Not quite as thick (mine is 3”) but it is 7’ long. This was all 6/4 hard maple, glued on the wide face. Every joint has biscuits in it.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Smitty_Cabinetshop's profile (online now)


15342 posts in 2612 days

#9 posted 08-30-2015 01:21 PM

Definitely ‘yes’ on biscuits. No reason not to.

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

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