Cushion the seat itself


Seat upholstery - instructions

Cushion the seat itself: seat

Whether it is about replacing an old upholstery or about upholstering a new seat, is irrelevant. In both cases, the procedure is basically the same. Possibly the structure of the upholstery differs.

With straps or spring baskets you are more likely to be dealing with older chairs, where occasionally even horsehair and similar materials can be found. As a rule, however, the materials for upholstery today are mainly foam, upholstery fabric and upholstery fabric.

Tip: If you want to cushion a seat yourself, you should get good material and follow the tips below, so that the effort pays off in the form of high seating comfort and a long life of the upholstery. At its core, it's all about the foam and upholstery quality.

Contents: Seat upholstery

  • Material and tool requirements
  • Foam - important information about the qualities and designations
  • Instructions for simple foam padding
  • Instructions for upholstering a seat with spring basket

Material and tool requirements

Required material

  • Foam (here RG 50/75)
  • wadding
  • upholstery fabric
  • Spray adhesive

Tool

  • tongs
  • flat slot screwdriver
  • hammer
  • Stapler (best an electric stapler)
  • if necessary belt tensioner

When restoring a seat with a spring cage, you may also need straps, belt nails, spring lines, Afrik / Palm fiber ready-made upholstery, gray upholstery, cotton nettle and / or upholstery nails. Always look how the structure of the old upholstery was and get the appropriate material for the restoration.

Foam - important information about the qualities and designations

To buy the right foam quality, you should be able to classify the common names. Essentially, the density (RG) and the compression hardness (SH) are given. These two values ​​are completely independent of each other. The volume weight indicates how heavy a cubic meter of the offered foam is. The higher the weight, the better the quality. The compressive strength indicates how much force has to be expended to compress the foam to 40% of its volume. The lower the value, the softer the foam. There are both very heavy, soft foam and extremely light, hard and vice versa.

Cushion the seat itself: cushion

Foam plate - fixed seat cushion - RG50 / 75

For the seat of a children's bench you need less compression hardness than with a chair for a heavyweight adult. The density in both cases should not be too low in favor of quality. However, the children's bench may need to last less than the chair upholstery.

The name for foams is usually given in RG... /..., where the indication behind the cross-bar indicates the compression hardness. Common for use as a seat upholstery about RG35 / 50, RG 40/60, RG50 / 70 and more.

A density under 35 (RG35) would be suitable for a backrest, but not for a seat cushion.

Tip to choose:

If the load is low, layer thickness, density and compressive strength can also be relatively low. The higher the load, the higher the layer thickness, density and compressive strength. The smaller the layer thickness (for structural and / or aesthetic reasons), the more important a high density and a relatively high compression hardness.

Instructions for simple foam padding

Step 1: Remove old pad if necessary

After the seat has been removed, the staple needles can be pulled out or levered on the underside. If you can, you can do it outside, often the old layers are dusty or even crumble. Keep the old layers as a cutting template. If there are many layers, a few photos are worthwhile, so that it is easier to remember the old structure.

Cushion the seat itself: foam

Unscrew the old seat.

Cushion the seat itself: foam

Pry the clamps with the screwdriver.

Cushion the seat itself: fabric

Remove the remains with the pliers.

Step 2: Measuring a previously unpadded seat

If the seat is new or has not had any upholstery yet, then you must first measure it to make a first cut.

If it is a wooden plate to be placed in a frame, it can be used directly for it.

Cushion the seat itself: seat

The old crumbled foam is enough for cutting.

Cushion the seat itself: upholstery

Remove all cushions on the seat.

Step 3: Cut the foam

The fleece and the upholstery fabric can, if available, be cut to the old pattern with at least 5 cm addition all around, who has enough material, quietly takes 15 cm. Otherwise, it must be measured and calculated. Here, too, an addition of 5 cm should be included all round for safety.

Cushion the seat itself: seat

The old foam is used as a pattern for cutting.

Cushion the seat itself: upholstery

Cut fleece with 15 cm oversize to foam.

Step 4: Cutting fleece and upholstery fabric

The fleece and the upholstery fabric can, if available, be cut to the old pattern with at least 5 cm addition all around, who has enough material, quietly takes 15 cm. Otherwise, it must be measured and calculated. Here, too, an addition of 5 cm should be included all round for safety.

Cushion the seat itself: upholstery

Fleece and foam are roughly precut.

Cushion the seat itself: foam

The upholstery fabric gets about the measure of the fleece.

Step 5: Stick on foam and adjust

The foam is sprayed with the spray adhesive and the seat also. After a short drying, press the foam onto the seat and let it dry. After the adhesive is dry, the foam can be cut off with the knife all around the seat. Not straight, but oblique (see graphic).

Cushion the seat itself: foam

Apply spray adhesive over a substrate.

Cushion the seat itself: seat

Cut off edges with a utility knife.

Step 6: Apply cushioning fleece

Now the upholstery fleece is placed on a table and the seat with the foam on it plunged. Then all 4 corners are cut off.

Fix one side with the stapler, then clamp the opposite and also tackle. Do the same with the two remaining pages. Clamps that are still a bit high, best hit with a hammer completely.

Cushion the seat itself: cushion

Cut the corners of the fleece diagonally.

Cushion the seat itself: cushion

When folding over, there are no overlaps.

Cushion the seat itself: foam

Cut off excess material.

Step 7: Stretch upholstery fabric

In this step, the tailored upholstery fabric is placed on the table with the front side.

First one side is tacked on, then the opposite one under tension and then the other two sides in the same way. The corners are left out (about 5 - 10 cm away from the corners)...

Cushion the seat itself: foam

Place padding in the middle and fold over one side.

Cushion the seat itself: seat

Pull fabric tight and tackle the second side.

Cushion the seat itself: foam

Do not attach the corners yet.

To form the corners, the fabric is first pulled straight from one side over the corner. (if necessary fix with a tack needle). In the next step, pull the fabric over the other side with a straight edge and fix it with the stapler (see photo).

Cushion the seat itself: upholstery

Pull straight over the edge from one side.

Cushion the seat itself: foam

From the other side lay a straight edge of fabric over it.

Step 8: Overcast and assemble

Cut off all excess remains of fleece and upholstery fabric. Maybe a few additional staple needles put to overcasting. Then mount the seat on the chair or insert it into the frame. The same principle applies if you want to cushion a chair backrest.

Cushion the seat itself: foam

Fully upholstered and cleaned.

Cushion the seat itself: fabric

The before-and-after effect with the new upholstery.

Instructions for upholstering a seat with spring basket

Step 1: Remove old upholstery

Loosen old tacker needles or pull out upholstery nails. Tip: Make a photo of the layer structure as a souvenir support and then after each worn layer one again, if you want to restore the original.

When restoring an old seat with or without a spring basket, you may need new belts including belt tensioners, belt nails, spring lines, Afrik / Palm fiber ready-made upholstery, gray upholstery, cotton nettle and / or upholstery nails. Always look how the structure of the old upholstery was and get the appropriate material for the restoration. Everything that is perfectly fine can be reused.

Those who do not care so much about historical correctness and more about comfort can work with new materials.

Cushion the seat itself: foam

Remove all staples and upholstery nails.

Cushion the seat itself: foam

The old construction of jute, Afrik and padded cotton.

Step 2: Replace straps as necessary

Torn, torn or worn belts must be replaced. To do this, cut the strap material to the appropriate length with a little bit of extra. Then the straps are attached as in the original structure by one side is fastened with Gurtnägeln, the other side with the belt tensioner brought to tension and fastened with other Gurtnägeln. As far as the straps were intertwined, this is also repeated in the new straps.

Step 3: Apply covering layers

Jute or nettle is often on the spring basket and then a coarse-grained layer that reliably covers the metal and is able to cope with the strain. This can be an Afrik / Palm fiber ready-pad or a horsehair mat. Then there is usually gray upholstery as a support and then a nettle fabric, which is applied under the actual upholstery fabric as protection.

All these materials can be ordered and processed online. If the existing ones are still well preserved, they can be used again.

Step 4: Fabric, foam and fleece

If you want to cushion the seat from the chair with more seating comfort than before, it's better to use a good foam construction. A simple cotton fabric of appropriate size is glued over the jute. Simple cotton is less coarse, protecting the foam from abrasion, just as the fleece protects the foam up to the poster fabric. On this construction comes some spray adhesive and it is the roughly cut foam fixed.

Cushion the seat itself: fabric

Simple cotton or nettle fabric under the foam.

Cushion the seat itself: upholstery

Mark and trim the foam padding.

Once dried, the edges are cut off. Then the upholstery is placed upside down on fleece, which is diagonally cut off at the corners and firmly stapled. Always attach opposite sides while tensioning. First place the staple needles in the middle and then alternately to the right and left of them.

Cushion the seat itself: seat

Work on the fleece with addition and cut off the corners diagonally.

Cushion the seat itself: upholstery

First fix the fleece on the straight side and then opposite.

Step 5: Stretch upholstery fabric

Again, the pad comes upside down on the upholstery fabric (the front of the fabric is on the table). Now the fabric is first attached to the straight edge with the tacker. Then the fabric is stretched opposite and fixed with staple needles. Now alternately turn the fabric to the left and right and staple with two or three needles, placing small wrinkles to make the rounding as even as possible.

At the end, the two corners are formed by first pulling them forward and then placing a straight edge over the corner over them. Hard tacking and done.

Cushion the seat itself: fabric

Lay the upholstery fabric with the visible side down.

Cushion the seat itself: seat

When tacking, start with the even sides.

Cushion the seat itself: seat

Finally, the seat can be fixed on the chair.

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Video Board: GSeat Ultra Seat Cushion From Gelco Products