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14 votes

How do you straighten/bend wood planks without removing any material?

Steam bending would be your only option. Wetting the fibers and allowing them to bend and twist. It might not work, but there is a chance. Not using a moister measure, you will just split the wood ...
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  • 15k
12 votes

How do you straighten/bend wood planks without removing any material?

The other answers have covered how you can bend the wood, but one thing they left out relates to the length of the wood. The following applies to some other defects too like bows. You mentioned you ...
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  • 4,796
7 votes

How do you straighten/bend wood planks without removing any material?

Bending using heat (usually steam) is one of the only ways to bend wood reliably. But, when a board twists as it dries that is usually not permanently fixable because the wood may have 'taken a set'. ...
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  • 58.7k
6 votes

How can I bend plywood?

The bending method pictured is called bent lamination. You take multiple thin sheets of wood and glue them together in a bending form, as illustrated in https://woodworking.stackexchange.com/a/1795/...
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  • 18.6k
6 votes

Best wood species for extreme bends?

I suspect oak, ash, or some type of cedar. I believe it will always have been ash. European ash, Fraxinus excelsior, is one of the traditional coachbuilders' woods, valued for its strength and ...
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  • 58.7k
6 votes

Best wood species for extreme bends?

You can bend most woods, some easier than others, but even the easier ones to work with can fail. Oak is one of the more common wood to use when bending so I would recommend that. I would strongly ...
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  • 196
5 votes

How do you straighten/bend wood planks without removing any material?

I have tried to straighten a wood screen door with steam with very little improvement. I then forceably bent it well past straight, 1 1/2 inches in center of the 7 foot span. Then saturated it with ...
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4 votes

How to make bent bed slats?

This can be done by using multiple thin pieces of wood, glued together between each layer and being clamped to a jig/template. The other way is to steam and again clamp to a jig/template. The jig will ...
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  • 121
4 votes
Accepted

Straightening a green bent walking stick

How long should I leave the wood clamped straight so that it wont bounce back right away (and finally fix my big crack of a mistake)? If the wood is green, then you may be able to straighten it by ...
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  • 7,287
3 votes
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Minimum bend radius for hardboard

I finally got the time to try this out today. Dry was hopeless, but damp worked well (as suggested by descriptions like this one). I cut a couple of strips of the size I intend to use (22 mm ...
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  • 698
3 votes

Will gluing thin planks to cut out curved chair leg be strong?

Thanks for the drawing, I wouldn't have understood what you were hoping to do without it. It's too thick to bend. (Isn't it? I've never tried steam bending before but remember I'm a homegamer) It'...
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  • 58.7k
2 votes

Is green or steamed wood better for bending?

It is a well known solution in the wooden chair production. They are mostly using kiln dried wood at ~15% humidity. The steaming procedure recommendation is: 1hour for 1cm thickness under pressure of ...
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  • 21
2 votes

Will gluing thin planks to cut out curved chair leg be strong?

That's a pretty substantial bend. Steambending is probably not an option, especially if the wood has been kiln dried. Doing a glue-up is theoretically strong enough, but a lot depends on stock ...
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2 votes
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prevent wood bending when glue is applied

With thicker blocks you could use PVA but don't, it's the wrong sort of adhesive for the application*. Whatever glue you pick must be completely waterproof — these are fairly thin end-grain blocks you'...
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2 votes
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Help a novice with warping pine wood boards

What you're describing is a medium sized solid wood panel that is likely to be "cupping". This is a phenomenon that happens with solid wood boards/panels so the most practical solution for ...
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  • 36
2 votes
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How to make bent bed slats?

Well Ikea's bed slats are made by gluing, as you say: https://www.ikea.com/ca/en/p/luroey-slatted-bed-base-60160217/ Materials: Layer glued slats: Beech veneer, Birch veneer, Adhesive resin as ...
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  • 3,809
2 votes
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How to prevent desktop from bowing?

The asked question: The Sagulator is the generally accepted reference for determining if shelves are going to be strong enough to support the expected load over the desired span. Your table is ...
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  • 5,394
2 votes

Can you effectively correct a warped board finished with polyurethane (or other waterproofing)?

"Effectively"? No. Theoretically it is possible to bend a piece of wood that has finish on it. However I seriously doubt that the finish would come through the process in an acceptable state. ...
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1 vote

Bending wood using heat alone, what temp does it need to get to?

The heat gun works because it is localized. You would not bake the wood in a household oven as one piece, but rather apply heat to the places you want to relax so you can form it. Guitar makers use ...
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  • 6,164
1 vote

How to fix a crack when bending a veneer

I reached out to a friend-of-a-friend who does parquetry. He suggested applying heat with an iron to try smoothen the ends out. It was relatively successful in that the crack is no longer sticking up, ...
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1 vote
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Bending Wood: is it easier to bend fast or slow growing ash

What is ‘best’? Straightness and freedom from knots have already been mentioned. Equally, if not more important is the speed of growth of the wood. The faster it is grown, the greater the proportion ...
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  • 489
1 vote

Recommendations for a 3’ diameter wooden pipe?

I think the best way would be to make multiple of those "donuts" out of a thicker plywood, and use them as bulkheads down the length of the pipe. Run stringers to link them together, then bend a ...
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1 vote

Recommendations for a 3’ diameter wooden pipe?

Flexible plywood can be used for this. It typically has a bend radius of about 12", so your 3' diameter should be fine. Do note that flexible plywood is usually pretty thin, so to get the 3" wall ...
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  • 3,096
1 vote

Minimum bend radius for hardboard

I don't think you will have a problem bending 3mm hardboard especially in the narrow binding strips. You will have better luck bending dry than wet as wet the board will swell and come apart. If you ...
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  • 869
1 vote

How can I straighten a 2' long wooden stick

Soak the sticks in water. This will make them pliable. Then put them in a brace or frame that holds them straight while they dry.
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  • 2,033
1 vote

How do you straighten/bend wood planks without removing any material?

Little late but...I tought about how you straighten a door, using wood block on the 'to in' corner and close the door for a 36h, door is most time corrected. So, I put wood blocks under the two lowest ...
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