40 mm × 900 mm Threshold Strips – Dark & Multi-Purpose Flooring Thresholds
Our dark 40 mm × 900 mm threshold strips are designed to create clean, professional transitions between flooring surfaces in doorways and smaller floor openings. The 40 mm width and 900 mm length make these thresholds ideal for standard door frames, providing effective coverage of expansion gaps while maintaining a neat, low-profile finish.
Featuring a range of dark finishes, including dark grey and dark wood-effect tones, these 40 mm threshold strips complement modern and traditional interiors alike. They are suitable for use with laminate, tile, stone, engineered wood, and solid wood flooring, offering durability and long-lasting performance in both residential and commercial environments.
Many of our dark 40 mm × 900 mm thresholds include easy-fit systems such as adhesive or clip-fix designs, making installation straightforward for both DIY users and professional installers. ( See our Door Threshold Instalation Guide Here )Browse the range below to find the right threshold strip for your flooring project.
Why Choose 40 mm × 900 mm Threshold Strips?
-
Ideal size for standard doorways
-
Covers expansion gaps and uneven joins
-
Dark finishes suit modern and high-traffic areas
-
Compatible with laminate, tile, stone and wood flooring ( See our Guide for Compatability)
-
Durable and low-maintenance construction
Dark Finish Thresholds for Flooring Transitions
Dark threshold strips provide a clean contrast against lighter floors and help conceal everyday wear in busy areas such as hallways and entrances. These 40 mm thresholds offer both functionality and a polished appearance.
Quick FAQ's
What flooring types work with 40 mm × 900 mm thresholds?
They are suitable for laminate, stone, tile, engineered wood, and solid wood flooring.
Are 40 mm thresholds wide enough for doorways?
Yes, 40 mm thresholds are commonly used in standard doorways to cover expansion gaps effectively.
How are these dark threshold strips installed?
Many feature adhesive or clip-fix systems, allowing quick and secure installation without visible fixings.
Are dark thresholds suitable for high-traffic areas?
Yes, dark finishes are practical for busy areas as they help reduce the visibility of scuffs and wear.
- 10
- 15
- 20
- 25
- 30
- 50
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old
Sort by:
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
- Date, new to old
-
Professional Dark Oak Threshold Strip – Ideal Floor Transitions The Dark Oak 40mm x 900mm Multi-Purpose Threshold Strip from Syntech Plastics is a versatile transition solution designed to join different floor surfaces with a clean, professional finish. Featuring the innovative Easyclip adhesive clip system,...
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
Create a warm and distinctive transition between rooms with the Dark Rustic Oak 40 mm × 900 mm Multi-Purpose Threshold Strip. Designed to bridge flooring surfaces, this trim helps cover expansion gaps while protecting exposed floor edges from everyday wear. The dark rustic oak...
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
The Dark Silver Grey 40 mm x 900 mm Multi-Purpose Threshold Strip provides a stylish and practical solution for joining flooring surfaces between rooms. Designed to cover expansion gaps and protect flooring edges, this threshold trim helps create a seamless transition while enhancing the...
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
Product Overview Create a seamless and professional floor transition with the Black Ebony 40mm x 900mm Easyclip Door Threshold Strip—part of our trusted threshold range at Syntech Plastics. Designed for use with a variety of floor types including laminate, vinyl and engineered wood, Tle,...
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
Create a modern and distinctive transition between flooring surfaces with the Silver Blue 40 mm × 900 mm Multi-Purpose Threshold Strip. Designed to bridge flooring gaps and protect exposed floor edges, this trim provides a neat and durable doorway finish where different flooring materials...
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
Create a sleek and contemporary transition between flooring surfaces with the Grey Slate 40 mm × 900 mm Multi-Purpose Threshold Strip. Designed to cover expansion gaps and protect exposed floor edges, this trim delivers a professional and durable finish where different flooring materials meet....
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00 -
Create a bold and contemporary transition between flooring surfaces with the Black Ebony 40 mm × 900 mm Multi-Purpose Threshold Strip. Designed to cover expansion gaps and protect exposed flooring edges, this trim provides a neat and durable doorway finish where different floors meet....
- £12.99
£16.99- £12.99
- Unit price
- / per
Save £4.00

















