HANDY HINT: If a coil spring is worn out or broken, it must be replaced. A worn spring can be tested by setting the spring on a table and pressing it down with the flat of your hand. Replace the spring if it begins to sag to one side. Scroll to the bottom for more hints. 

What gauge of spring? Use 9g coil springs for seats, and 10g for backs.


Coil springs are installed inside a frame by being fastened to rails, jute webbing, or a wooden base. Spring tops are compressed, bound together with jute twine, and/or stitched to a hessian cover. Use a large curved needle for stitching.

What gauge of spring? Use 9g coil springs for seats and 10g for backs.

What height spring? The height of the spring has many different factors, but here is a general rule of thumb. Measure the height of the side frame and add 10-12cm. For instance, if the frame is 8cm high, buy a spring about 18-20cm. 

How much should I compress the spring? Press the spring down with your hand. When you feel the spring starting to resist, that is the height to tie it off at. Basically, you want to compress it enough to give you enough resistance on the top padding and fabric, but not so much that it starts to force the bottom out. 

Does your armchair have a saggy bottom? Buy replacement biconical coil springs to strength it again. Various sizes.

Got a question or comment?


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