Polyurethane foam is the most common (and least costly) seating used. The standard
grade foam commonly found in today's retail furniture can range from low to medium
density/resiliency, which is then wrapped in dacron. Low resilient/low density foam
will commonly lose it's thickness, and shape, collapsing permanently at the corners.
This can show up, in some cases, after only a few months of use. The other complaint
is that the seat is “not providing enough support” or “bottoming out” . This is primarily
due to the type of low density foam that was used.
Density can be considered a measure of quality. The most important factor that will
determine the lasting comfort, support, and durability of foam is directly related
to the density, which is measured by weight per volume. This is expressed as lbs
per cu ft.
The higher density of the foam the more it costs to produce. Higher density foams
have more lasting resilience(springiness) and are less likely to lose their shape
It is important to know that density is independent of firmness. Extra firm does
not necessarily mean high density. Firmness is a measure of load bearing capacity,
which is also called the Support or Compression factor. A high density/firm cushion
will keep its original feel far longer than a low density (lower quality)/firm cushion.
The firmness type chosen is a personal comfort preference, which can also vary with
the thickness of cushion and the type of furniture.
There are several factors to consider when choosing cushioning for your project.
KJ’s can recommend the options appropriate based for your specific project. The density,
firmness, thickness of the foam and type of cushion wrap will determine the durability,
comfort, shape and look of the cushion. It is always best to test the new foam on
the actual sofa or chair, as decking suspensions vary. The best firmness for your
project is an individual preference; some people like to sink in, others like more
* Soy based foams are only 5–35% soy based and the rest is oil based derivatives.
This is a new material which shows promise but currently KJ’s is not using these
mostly synthetic /natural foams.
Natural Latex Foam
provides superior resilience, gentle firm support and outstanding pressure relief.
It is highly resistant to sagging and deterioration. Latex is a natural, renewable
resource with a life expectancy of nearly 20 years, compared to 10-15 years for standard
foam. The latex foam can be used in combination with innerspring units or wrapped
*Premium spring/latex foam
Combines the support of springs and the resilience and shape retention of foam.
Spring core cushions offer a lifetime of comfort. These individual spring coils are
framed in a latex foam core wrapped with a stretch cover. The spring coil unit provides
equalized independent suspension cushioning and support.
* Latex /wool wrap
Wrapped with stretch knit which enhances the natural resilience of the latex. Natural
wool batting is used as the soft cushion wrap over the latex. This wool creates a
nontoxic, breathable layer. The cushion is then covered by a stretch ticking, which
also helps keep dust and dust mites from penetrating into the cushion.
Latex facts: Manufactured using sap from the rubber tree, it is a renewable natural
resource. It has exceptional contouring properties, is naturally resistant to bacteria,
mildew, and mold. Consider these products an investment, which often carry a warranty
for 20- 30 years when properly encased. Latex is biodegradable, when exposed to the
elements it will actually completely turn to dust. Note: Dunlop foam is currently
found to have better longevity and durability than Talalay latex . Latex foam is
not naturally fireproof, so when used as bedding the foam cushion should be wrapped
in something that will retard flame. In less expensive green upholstery this is achieved
by using a fireproof ticking. In high-end pieces, natural wool batting is used as
the soft cushion wrap. This wool creates a nontoxic, breathable layer, but should
be covered by a down-proof ticking.
100% NATURAL WOOL CUSHION WRAP
BENEFITS: provides a water resistant protective layer to protect your foam from spills
and soiling. It will add comfort in the summer and winter due to wools insulative/
wicking properties. It also adds fire retardancy and resistance to dust mites. We
use either 1/8" thick or 1/4" thick depending on the project.
100% NATURAL COTTON CUSHIONS
Cotton breathes, which helps control temperature. Pure cotton will not offgas any
chemicals or gases. Cotton is perfect for people with chemical sensitivities or allergies.
Used alone as a cushion filling, 100% cotton provides the firmest support natural
padding. It will become firmer with use and is best suited for a flat uniform surface.
The all cotton futon style cushion is available from 3" thin up to 9" thick. . The
cotton batting is hand tufted to stabilize and prevent shifting. It is encased in
a ticking cover, so the upholstery cover can be easily removed for washing if needed.
with eggcrate foam insert:
This is a blend of natural and synthetics. The eggcrate foam greatly improves the
resilience, softening the firm feel of the cotton batting cushion.
Cotton wrapped spring units:
Spring core cushions offer a lifetime of comfort. This style was very commonly used
in furniture 20 plus years ago before synthetic foam came on the market. Compared
to spring/latex these spring/cotton units will flatten out a bit over time, but can
be renewed with another layer or two of cotton after years of use.
Cotton filled mattresses have been used for thousands of years, back to the ancient
Babylonians, Mesopotamian, and Egyptians. The natural botanical cotton odor will dissipate
with time. Most people don’t notice it or don’t mind it, but some people can be sensitive
to the natural botanical smell. These cushions can get quite heavy. See our spring/foam
combo options for cotton cushions which provide a more springy, resilient feeling
cushion.Because of cotton’s absorbency, care should be taken not to allow spills
to penetrate the upholstery cover. If this is an issue, protection can be added with
either a water resistant wool wrap, or a breathable waterproof barrier cloth. .It
will compact and flatten out a bit over time, but it can be renewed easily by adding
another layer. We also offer organic cotton upon special request. This natural alternative
typically lasts 10-15 years
100% Natural Down
Down is a natural renewable resource, which requires minimal processing for use.There
are a variety of feather/down/cluster fiber combinations to choose from, each create
a different loft and resistance. This resilient feel and look has a much longer life
expectancy than simple dacron wraps. To maintain the loft, these cushions require
an occasional hand fluffing. This option is generally a 50% cost upgrade above standard
factory grade cushioning.
Premium spring/foam/down-Combines the fluffy down feel with support of springs and
the shape retention of foam.
These have individual spring coils framed in a foam core. This is then surrounded
with a baffled down/feather envelope. These keep their shape beautifully because
of the foam. The spring coil unit provides equalized independent suspension cushioning
and support, while the down envelope provides a “sink into” lofty feel and look.
A baffled down cushion without foam is most commonly used primarily for back cushions,
as it does not provide enough support for seating unless used on top of another cushioned
Foam with down envelope– foam provides deep firm support, while the down provides
an excellently resilient crown.
A medium thick down envelope with a generous 3”-4 ” medium-density foam core.
Ultra down envelope with foam core– A thicker down envelope gives a deep fluffy cushion
top, while the thinner foam core (2"-3") provides some shape retention and support.
Ultra thick down envelope with a 2”-3” High-density core.
Back cushioning and Pillows
Some styles of furniture or pillows require a loose filling, while other styles need
foam or other filling to provide shape and support. The optimal softness or support,
and the thickness of a back rest or pillow is often an individual preference. Each
filling choice made for style reasons can also effect the feel and comfort, so a
test sit is often helpful. Ask KJ help you decide which is best for your project!
Poly fill. Is the least costly material used is, which can vary in quality and resilience.
Some fills can be quite lumpy.
Cluster fiber is a much higher quality fill, quite down like, especially when encased
in a baffled pillow form.
Down/feather baffled cushion. Is the highest quality soft, resilient back cushions
The amount and type of filling, and the ratio of down/feather proportions will
vary the feel and look. This cushion does not retain its shape without an occasional
fluffing. A foam insert can be added to retain the shape as an option.
100% Natural Kapok is an alternative to down. Baffled pillow backs filled with kapok
(a vegetable fiber that has been used for many years.)
A variety of foam thicknesses and densities can also be used for back cushioning,
depending on the desired feel and look of the back rest or pillowback. A foam core
can be wrapped with 1 or many more layers of dacron or fluffy dac 91, or wool batts.