Making my Backline Panel Clamps

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Blog entry by robscastle posted 09-30-2016 12:23 AM 584 reads 0 times favorited 8 comments Add to Favorites Watch

When I made the 1500mm x 1500mm Table top for my Son I needed some big Panel Clamps Like 1800mm or there abouts.

I didnt have any thing that big so I went looking for Commercial Panel Clamps

I found quite a few panel clamps and list them below, there is possibly more as well.

Panel Clamps:-

Damstom D 300 Black edition about $38 each
Woodtek Equi pressure Clamps about $25 each
Frontline Engineering Clamps about $400 each
Woodriver Clamps about $31 each
Double Bar Clamps kits anout $54 each
Plano Panel Clamps about $219 each
Apart from the Damstom, all the clamps in the $25 to $54 required the user to supply their timber rails to suit the dimensions required.
The Frontline and Plano panel clamps had extension units to make them longer.

I could have also been able to buy 4 x sets of parallel Jaw clamps as well.

So I was up for a large capital outlay ($1000) if I went this way.

Otherwise buy timber rails rails and make my own.

The top end Panel Clamps were way beyond my hobby budget but I liked the principle.
I am not saying they are not worth it either!

To overcome the $ problem I bought two lengths of 40mm Unistrut at 6m, a heap of bolts, wing nuts and spacer washers.

I have a good friend who is a “gun” metal fabricator and he made the clamping assemblies for me at nil cost, (well may be there was a slab of beer in there somewhere)

The Panel Clamps in use with the 1500 table panel

The Panel Clamps in use with the CFrye Pizza Peel

It was the posting of the Pizza Peel blog which prompted to Clamp blog post.

How I did it.
Cut the unistruts into six 2 m lengths using a metal cut off saw

Buy a heap of wing nuts bolts and spacer washers, you dont need as many as you see I have!

So lets look at everything:-
The fully assembled Clamp

The clamping assembly

The rear support bolts

The clamping end (top)

The other end

Costs of Material:-
2 lengths of 40mm x40mm Gal unistrut $132
Bolts Washers and wing nuts $60
The Clamping mechanism (locally Made)

So do they work?

You judge for yourself

The Piza Peel out of the clamps and a straight edge sitting on top in various positions and sides, after I scraped the glue residue off.

P1 S1

P2 S1

P1 S2

P2 S2


In their 2 m form they are a bit unweildly so I intend to buy another length of Unistrut and cut it into shorter lengths, hence all the addition bolts etc.

-- Regards Robert

8 comments so far

View htl's profile


2017 posts in 579 days

#1 posted 09-30-2016 12:32 AM

Great idea!!!
The next time I see some in my walkabouts scrounging I will be picking them up. LOL

-- There's a hundred ways to do anything, alot depends on the tools at hand.

View BobWemm's profile


1726 posts in 1346 days

#2 posted 09-30-2016 02:04 AM

That is excellent Mate, Our Men’s hed bought two x 1800 T bar clamps for $93 each, so either way it’s good value.


-- Bob, Western Australia, The Sun came up this morning, what a great start to the day. Now it's up to me to make it even better. I've cut this piece of wood 4 times and it's still too damn short.

View a1Jim's profile


115172 posts in 2997 days

#3 posted 09-30-2016 02:52 AM

very creative

-- Custom furniture

View crowie's profile


1404 posts in 1371 days

#4 posted 09-30-2016 08:25 AM

Thank you Rob, Very good “HOW TO” and it saves ones funds for other things….

-- Lifes good, Enjoy each new day...... Cheers from "On Top DownUnder" Crowie

View Boxguy's profile


2122 posts in 1687 days

#5 posted 09-30-2016 09:27 AM

Rob, nice work. I like the thinking.

-- Big Al in IN

View JoeinGa's profile


7367 posts in 1427 days

#6 posted 09-30-2016 01:26 PM

Nice. I wondered how they worked when I saw them on the pizza peel. Thanks

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View Roger's profile


19714 posts in 2224 days

#7 posted 10-01-2016 02:33 PM

Nicely done Ron. Those will certainly come in handy for those glue-ups.

-- Roger from KY. Work/Play/Travel Safe. Keep your dust collector fed.

View CFrye's profile


8567 posts in 1260 days

#8 posted 10-02-2016 12:12 PM

They work great, Rob! Thanks for sharing.

-- God bless, Candy

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