What Pvc Slats Really Costs: A Line-by-Line Breakdown

Most cost conversations start at the unit price and end at the discount. The useful conversation starts one level down, at the four or five lines that make up the price.

Where the money goes

Reading the structure

The largest line is pvc compound at 45-55 %. That is where a supplier has the most room to move and the most temptation to substitute. When a quote comes in well below the market, the difference is almost always here rather than in labour or packaging.

The smallest line is often the one that protects you: hardware and assembly at 12-18 %. Cutting testing or packaging saves a visible amount per unit and costs a multiple of it in claims. This is the first place a new supplier cuts and the last place a serious one does.

Three levers that actually move the price

Colour count, which is where PVC slats cost is really set

Most buyers push on total quantity. The factory cost is driven by setups, not by total metres, and 500-800 sets per colour is quoted per colour because a colour change resets the process. Four shades at a quarter of the volume each cost more to make than one shade at the full volume, even though the total is identical. Consolidating shades usually beats a volume discount.

Loosening warp tolerance, if the product allows it

A tight tolerance on a parameter the product does not need is pure cost. Warp tolerance at <= 1.0 mm per 1 m at 60 C is usually where a specification has been carried over from another programme without being re-examined. Loosening it recovers more than the discount being negotiated, and it does not damage the product.

Timing against a 20-30 days cycle

Production slots matter. A 20-30 days cycle can usually be met; a two-week expedite usually cannot, and when it is accepted the cost appears as overtime and air freight rather than in the unit price. Booking a slot four weeks out is the cheapest concession a buyer has.

The savings that come back as claims

White slats turn cream within a year in a sunny window. The cause is insufficient or wrong uv stabiliser; often tio2 grade rather than a true uv package. This is what a 10 % saving looks like eighteen months later, and it is why the cheapest quote is rarely the lowest landed cost.

A working rule: price the difference between quotes against the cost of one replacement shipment. If the gap is smaller than that, the decision is not really about price.

What to ask for in the quotation

• The specification, line by line, against uv stabiliser and yellowing resistance at the values you asked for.
• The validity period, because the raw material index moves before the price list does.
• What is included: yellowing, packing, certification, sample courier.
• The MOQ per colour (500-800 sets per colour is typical) separately from the order minimum.
• The payment terms and what would change them.

Cost detail for the material itself is on the PVC slats page; the commercial terms we work to are on the logistics page.

Questions buyers ask before ordering

Will white PVC yellow in a sunny window?

Not if it is properly stabilised. Ask for a QUV 300 h report with dE <= 3. Without that report, assume it will yellow.

Is PVC allowed in the EU?

Yes for window coverings, but the compound must comply with REACH and heavy-metal limits, and some buyers restrict PVC on brand policy grounds. We supply both and will tell you which is more common in your market.

How does PVC compare with basswood on price?

Typically 20-30 % cheaper per set at the same size, and lighter to ship than wood but heavier than paulownia.

Reading a quote that looks too low

A quote 15-20 % below the market is not a negotiating position, it is a different product. These are the five places the difference hides, in the order it usually appears.

1. A lighter construction. Thickness quoted at the bottom of 1.8-2.5 mm rather than the middle. Ask for the measured figure per lot.
2. One coating pass instead of two. Cheaper to make, fails at the fold within a season.
3. Testing excluded. The quote is ex-works without reports; the reports then cost more than the saving when a buyer asks for them.
4. Packing downgraded. Thinner cartons, no moisture barrier, more transit damage and a claim at destination.
5. Payment terms tightened. A deposit-heavy structure is often funding the order, which is a credit risk rather than a price advantage.

Three concessions that lower the price honestly

None of these damages the product, and together they usually recover more than the discount being negotiated.

• Fewer colours. Setup is per colour, so consolidating shades cuts cost without touching the specification.
• A longer slot. Four extra weeks lets the factory combine runs; the saving is real and it costs you nothing if the launch date allows it.
• Looser non-critical tolerances. A tight figure on warp tolerance adds cost and the product does not need it.

The three tiers of PVC slats, and what each one buys

The tiers are not marketing labels; they are different constructions at different points in slat width and uv stabiliser. A supplier who quotes one price for all three is quoting the middle and calling it whatever you asked for.

The useful question is which tier your programme can defend. If the end product is replaced before yellowing would appear, entry is rational. If it carries a warranty, the premium for contract is usually smaller than one claim.

Failure modes, and the test that catches each one

A specification only earns its keep if it names the failure it prevents. These are the two that matter for the price you are trying to move.

The other two, with acceptance numbers attached, are in the full failure analysis for PVC slats. A supplier who cannot name the mode he sees most often is describing a catalogue, not a process.

From quotation to specification in seven lines

Leave the tolerance and the method out and every dispute is settled by whoever needs the goods more.

1. Slat width (25 / 35 / 50 mm): name the number, not the word. If the answer only repeats the band, ask which point inside it is being offered for this order.
2. Thickness: 1.8-2.5 mm is the market band. Fix the figure you will test at goods-in, and the instrument you will test it with.
3. UV stabiliser (required, stated in phr): fix the value per shipment, and state who pays for the re-test if a lot lands outside it.
4. Yellowing resistance: QUV 300-500 h, dE <= 3 is not an answer on its own. Ask for the last three lots' actual readings and the spread behind them.
5. Sample retention: one production sample per lot stays with the mill for twelve months. Claims are settled against it, not against memory.
6. Test reports: name the standard as well as the test. A pass on a development sample is not a pass on a production lot.
7. Deviation rule: anything outside the agreed bands is reported before shipment, not after arrival.

Related reading

• How to Test Pvc Slats Before You Commit to a Container
• PVC blinds and slats Specification
• Slat width in PVC blinds and slats