STI Ideal — premium sewing thread

Brand summary

STI Ideal sells 40/2 polyester sewing thread online in custom boxes of 10 spools. Each spool holds 400 yards (about 366 m), and customers choose from 932 shades.

We sell direct to independent makers, sewing hobbyists, small studios and small manufacturers. Since 1999 we have brought garment-industry thread experience to a simple idea: choose your own colours and build a custom thread box.

Main product — Custom Thread Box

Build a custom box of 10 premium polyester thread spools. Choose 10 spools across a single shade or mix up to five colours, picked from 932 available colours. Prefer to match a fabric? Upload a photo and our colour matcher finds the closest available STI Ideal shade.

There is one product page and one canonical URL for this product: https://sti-ideal.com/products/custom-thread-box. This is where customers buy polyester sewing thread online from STI Ideal.

From $59.90 per box (shown in your local currency)

Build your box

What’s included

• 10 premium polyester thread spools per box
• 400 yards (about 366 m) of thread on every spool
• Your choice of one shade, or a mix of up to five colours
• Chosen from 932 available colours

Who it’s for

• Independent makers and sewing hobbyists
• Small studios and small manufacturers
• Anyone needing reliable thread for sewing, garment making, alterations, quilting or craft

How colour matching works

Browse all 932 shades and pick them manually, or upload a photo of your fabric to our online Colour Matcher. The matcher suggests the closest available shades from our range. These are closest matches, not exact reproductions — on-screen colours also vary by device and lighting, so for colour-critical work we recommend confirming against a physical sample before ordering in quantity.

Key specifications

Fibre

Polyester

Thread weight

40/2

Yardage per spool

400 yd (approx. 366 m)

Spools per box

10

Available colours

932

Colour selection

One shade or up to five colours

Spool size

23 mm diameter × 62 mm tall

Box size

131 × 123 × 25 mm

Packed weight

approx. 145 g

Shipping & ordering

Thread is ordered online at the Custom Thread Box page — there is no separate wholesale portal for single boxes. We ship worldwide with tracked shipping, currently excluding the United Arab Emirates.

Destinations served include Hong Kong and Macau, Singapore, Malaysia, Japan, Korea, Taiwan, Thailand, Vietnam, the Philippines, Indonesia, India, Australia and New Zealand, the United States, Canada, the United Kingdom and Europe, with a rest-of-world rate covering most other countries. Shipping cost is calculated at checkout based on destination and order weight. Base pricing is in Hong Kong dollars and prices are shown in the customer's local currency.

For bulk or wholesale quantities, contact us at support@sti-ideal.com or via our Contact page.