Step By Step Guide On How to Fix Wooden Chair Joints

How to Fix Wooden Chair Joints

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Wobbly chair

We have sat on a wooden chair which is not same as other. This chair stirs more than a trifle at the time of earthquake instead of giving a stable place to sit on.

You need to make the quest careful again and again while sitting on the demon chair.

The wobbly chair is somewhat inconvenient. Frustration increases if the wobbly gradually eats away your sanity and patience. Closely follow the instruction to mend all of the wobbly chairs.

Reasons the chair is wobbly

You have to find out the reason why a chair becomes wobbly. One should know it very well before he or she likes to repair it.

There are some syndromes of wobbly chairs. We have mentioned some of them below:

  • General usage – Most of the chairs are very lightweight. Its weight is more than a few kilograms. But the weight it carries every day is many times larger. The weight of the peoples’ body isn’t static either. We twist, move and turn to get a comfortable spot or to get something on a table. When we move around, our weight adds pressure to our different joints. Weight weakens them and becomes the cause of losing joints. The looser the joint becomes the more the wobblier we desire.
  • Age –Time keep destruction on everything. It may be an inanimate object or it may be a person. Nothing is completely free from the ravages of time. With the passage of time, a wooden chair becomes weaken or loosen due to the wood shrinking or breaking.
  • Poor craftsmanship – Sometimes poor construction becomes the cause of breaking or weakening a chair. It is usual for poor craftsmanship as well. The wooden chair becomes a wobbly rocking chair very quickly if the construction is very poor.

Ineffective repair – Most people like to repair a wobbly chair very quickly. So they use some glue to do it. This can solve the problem for a short while but it isn’t a permanent solution.

The problem is very general. The chair is the complicated piece of furniture. The press we use on it may cause the breakdown of it.

As the glue joint breaks down, the joints rub forward and backward within individual sockets, the wood fiber break down and the joint becomes looser. It leads us to two important points to repair a chair with the wobbly joint.

Remove all glue from the joint first and use new glue. There is tight fitting between the joints; you can clamp or re-glue, then get a successful repair.

how to fix wooden chair joints

Since the wood fibers break down at the joint, you have two alternatives. One is rinsed the joint and glue the new wood into stretcher or mortise and reform or re-drill the mortise, make a well joint again.

Another way is to clean up the joint once again to the wood fibers that are free from old glue. Again use epoxy to re-glue joint once again. The way is not reforming the joint by good wood… it may be fruitful.

Tim Inman: One of the main troublemakers for future restoration work is the wood movement. With the passage of time joint has changed or moved sizes.

The gap is little bigger or surely goes out of the round. The hole will be little bigger or may go out of the round. The tenons become somewhat smaller.

This may happen for environmental factors or wood drying out or for keeping furniture too close to the fire or near to the stove or may be going through a flood. A close fitting part works well for most wood glues. Gap filling is a must for old loose joints.

There are lots of ways for filling the gaps. Some need Cabinet is making skill, and some are cruder. It is up to the value of furniture you are likely to work with and time/ skill/ investment you like to make; you have various choices.

If you have a valuable piece of furniture, use time or skill to invest. I suggest using the job to do with expert professionals.

They have many options to solve` the joint problems as they do work well to restore furniture. Get garage sale and start learning curve of them. Try to save your valuable furniture with the experienced or expert hand.

Woodworking Joints


A butt joint is a very simple joint. It is very week in the sense that you can break it with barehanded. Here two pieces of woods are joined merely with butting them together.

If you don’t use some form of reinforcement, it will easily break down. The joint only depends on the glue alone. Glue doesn’t provide much internal strength. So it will easily break down.


A biscuit joint is same as a reinforce Butt joint. It is made of compressed and dried wood like beech.

Moreover, it is an oval shaped piece. You set it up in matching in both pieces of the wood joint. People like to use a biscuit joiner to prepare the mortises.

Accuracy isn’t important here for the mortises. You have to make design the biscuit joint to allow flexibility in glue up.

You should place the mortise to an accurate distance from the face of the woodworking joint. As the biscuit is thin, you may move the alignment around. The width of the mortise isn’t a factor at all.

This is the only reason for which I don’t like this joint. This is not a nice alignment. Moreover, you like to spend money for Biscuit Joiner.


A bridle joint is same as a tenon or mortise. Cut a tenon to the end in 1 piece and a mortise to the other piece to get it.

You may cut the mortise and the tenon to full it. This is a special feature of this joint. It has only 3 gluing surfaces.

The corner bridle joins only 2 pieces to the end to create a corner. It ensures good strength. Here you need a pin or fastener to set it up.

You can also use corner bridles for joining the frames. When an assembly is completed, you can remove the materials without forfeiting joint integrity.

T-bridle can join the edge of 1 piece with the middle of other pieces.


A dado is a piece of wood cut from the top surface of the wood. If you look closely you will find 3 sides of it. You may cut a dado perpendicular to the granule.

The end of the dado is open. It passes all the way inside the surface. This is different from the groove that you cut parallel to the grain. A stopped dado ends up prior it meets the edge of the top.

You may use dados to add shelves with a bookcase carcass. You can rabbet the shelves to raise the dado that makes the dado and the rabbet joint. This is a good thing for woodworking joints.


The dovetail joint is a very strong joint for wood. You may use it to join the sides of a drawer to the front. This joint is very excellent for tensile strength.

Here a series of pins cut to expand the edge of the board interlock by lots of tails cut to the end of other board. The tails and the pins have a trapezoidal shape.

If you join it with glue at first, it will last for a long time. It demands no mechanical fasteners. Some people like to use a dovetail dado for the strength of the tensile.


A finger joint is a very popular wood joint for working with wood. You can do it by joining 2 pieces of wood at the right angle to each other.

This is very much similar to the dovetail joint if pins are square. It has no angle. Here glue holds the pieces all together. This joint has no mechanical strength for a dovetail.

  1. Pocket Joint

In a pocket joint, you need to cut a slot and pre-drilling a pilot hole to an angle between 2 boards prior adding 2 by a screw. For pocket joints, pre-drilling is a very important thing.

So it is normally done by a commercial hop. You can use pocket joints for cabinet face frames.

Some other types of applications don’t need much strength. You should know the steps clearly to make pocket joints for your woodworking projects.

Wobbly Chairs

Few things are unnerving that taking place on a wobbly chair. As loose glue rungs and tightens, the hardware may not work. Then use right angle corner braces.

You may buy the braces from home improvement sores or hardware for couple bucks for a four pack. Buy paintable type if you like to paint the braces matching with the chair.

Add the brace where legs meet with the seat. You can bend the brace little as it flushes against the legs of the chair.

She says you should not keep gaps between the legs and the brace. Confirm about the pilot holes before using any screw. It may keep the wood from splitting.

Broken Back Rails, Spindles, and Slats

On chairs having horizontal rails to the back, the rails mortised to the other posts into a top rail or mortised to a curved or straight rail.

You can replace slats, rails, and spindles easily. The replacement would cost more. Do not think if the investment is not worth. To replace broken pat use a millwork or woodworking shop custom create a new part.

how to fix wooden chair joints

First, dismiss the chair back. It is joined with the back of the seat, legs, and rail. Pry the joints apart, remove screws or nails.

Disassembly joints involved in the repair. It is not necessary to disassemble the piece to obtain the part. You are not confirming that you may able to reassemble the chair, so use the number to indicate the parts.

Take broken part or similar undamaged part to the woodworking or millwork shop for duplication. Clean the old adhesive carefully from the joints.

After that, resemble the chair with the new section, use glue for the each joint. Resemble the chair with new glue. Clamps well until the adhesive dries well after that refine the chair totally.

Outdoor chairs made with the wooden slats are same to repair. But slats may be replaced with thin boards or wide molding.

Shape a piece of wide molding if you like to replace the broken slat. As the slats are fastened with the screws, drill screw holes and add with the old screws or match with the new one.

If they are fastened with rivets, drill to take the old rivet out and replace with the pan head or self-tapping metal screws.

Watch: how to fix wooden chair joints

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