Cheap standin for planer sled

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Forum topic by MarkCh posted 01-20-2022 01:23 AM 451 views 0 times favorited 4 replies Add to Favorites Watch
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141 posts in 686 days

01-20-2022 01:23 AM

I’m hoping to avoid having to create a planer sled for jointing wide boards by buying something at a big box store or a construction hardware store. Is there a super flat+relatively strong (won’t sag on my imperfect workbench) 13”x8’ thingy a bbs would have that I don’t know of? The alternative is a torsion box with 1/2” plywood, which I’m not super keen on because of the time and cost of plywood.

4 replies so far

View controlfreak's profile


3742 posts in 1060 days

#1 posted 01-20-2022 11:05 AM

With two pieces of MDF glued together it should be firm enough to shim the work piece for a ride through the planner. By the time I would go through all that setup and then have to figure out where to store it, I would rather flatten one side with a hand plane before a trip through the planner.

View HokieKen's profile


21709 posts in 2597 days

#2 posted 01-20-2022 02:00 PM

My planer sled is two layers of 3/4 plywood laminated and has stayed flat enough to do the job for several years now. It’s cabinet grade plywood though and my sled is only 6’ long so YMMV. MDF would also work well. Should be plenty flat and stable.

-- I collect hobbies. There is no sense in limiting yourself (Don W) - - - - - - - - Kenny in SW VA

View MarkCh's profile


141 posts in 686 days

#3 posted 01-21-2022 04:00 PM

Hmm, interesting. I figured plywood without some support would sag. I also need to hang this from the rafters for storage so lighter=better. I ended up coming across some 1/2” ply for cheap, so I just need to turn into a robot for an hour to make 30 half lap cuts on the inner brace.

View Lazyman's profile


9601 posts in 2846 days

#4 posted 01-21-2022 05:11 PM

Shopnotes/Woodsmith magazine's version is made with very basic torsion box using 1/4” hardboard skins. That should make it pretty lightweight but still flat as long as it is glued up on a flat surface in the first place.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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