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Door Thresholds & Trims

Complete your flooring installation with door thresholds that enhance your home and will last for many years to come. Whether you want to join carpet to carpet, need door threshold strips for hard flooring and vinyl or more specialist door bars such as ramps for solving tricky situations, we offer superb quality and expert advice.

Premier LVT Bevel Cap - Polished Nickel

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier LVT Bevel Cap - Pewter

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier LVT Bevel Cap - Chrome

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier LVT Bevel Cap - Brushed Chrome

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier LVT Bevel Cap - Black

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier LVT Bevel Cap - Antique Brass

from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Threshold Width: 7mm

Length: 900mm (approx. 35"),1000mm (approx. 39"), 1800mm (approx. 71"), 2700mm (approx. 106")

A rounded edge vinyl floor trim for protecting the edges of vinyl & other floorcoverings up to 2.5mm-5mm thick Choose from 10 metal finish...

View full details
from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Premier Euro-Floating - Polished Nickel

from Original price £34.79
from Original price £34.79
Original price £34.79
from £28.99
from £28.99
Current price £28.99

Threshold Width: 20mm, 30mm, 40mm, 50mm

Length: 90, 100, 180 & 270cm

Self-adhesive, brass threshold strip - Euro Floating for joining tiles, wood floors & the like Take the sleek and stylish option The ...

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from Original price £34.79
from Original price £34.79
Original price £34.79
from £28.99
from £28.99
Current price £28.99

Premier Z13 - Satin Nickel

from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The Premier Trims Z13 door thresholds transition from thick carpet to tiles & wood Buy now over 10 different finishes The Premier Tri...

View full details
from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Premier Z13 - Satin Brass

from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The Premier Trims Z13 door thresholds transition from thick carpet to tiles & wood Buy now over 10 different finishes The Premier Tri...

View full details
from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Premier Z13 - Polished Brass

from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The Premier Trims Z13 door thresholds transition from thick carpet to tiles & wood Buy now over 10 different finishes The Premier Tri...

View full details
from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Premier Z13 - Black

from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The Premier Trims Z13 door thresholds transition from thick carpet to tiles & wood Buy now over 10 different finishes The Premier Tri...

View full details
from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Premier Double Z13 - Polished Brass

from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Threshold Width: 30mm

Length: 1800mm (approx. 71"), 2700mm (approx. 106"), 900mm (approx. 35")

The Premier Trims Double Z13 door thresholds create an elegant join between two deep pile carpets Buy now over 10 different finishes The ...

View full details
from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Premier Double Z13 - Chrome

from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Threshold Width: 30mm

Length: 1800mm (approx. 71"), 2700mm (approx. 106"), 900mm (approx. 35")

The Premier Trims Double Z13 door thresholds create an elegant join between two deep pile carpets Buy now over 10 different finishes The ...

View full details
from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Premier Double Z13 - Black

from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Threshold Width: 30mm

Length: 1800mm (approx. 71"), 2700mm (approx. 106"), 900mm (approx. 35")

The Premier Trims Double Z13 door thresholds create an elegant join between two deep pile carpets Buy now over 10 different finishes The ...

View full details
from Original price £56.39
from Original price £56.39
Original price £56.39
from £46.99
from £46.99
Current price £46.99

Premier Double Z13 - Antique Brass

from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Threshold Width: 30mm

Length: 1800mm (approx. 71"), 2700mm (approx. 106"), 900mm (approx. 35")

The Premier Trims Double Z13 door thresholds create an elegant join between two deep pile carpets Buy now over 10 different finishes The ...

View full details
from Original price £40.79
from Original price £40.79
Original price £40.79
from £33.99
from £33.99
Current price £33.99

Matwell Edging Non Floating - Satin Nickel

from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Length: 90, 100, 180 & 270cm

Create a raised matwell frame for coir and ribbed matting The professional's choice of stick-down matwell frame Suitable for applying in ...

View full details
from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Matwell Edging Non Floating - Satin Brass

from Original price £28.79
from Original price £28.79
Original price £28.79
from £23.99
from £23.99
Current price £23.99

Length: 90, 100, 180 & 270cm

Create a raised matwell frame for coir and ribbed matting The professional's choice of stick-down matwell frame Suitable for applying in ...

View full details
from Original price £28.79
from Original price £28.79
Original price £28.79
from £23.99
from £23.99
Current price £23.99

Matwell Edging Non Floating - Polished Nickel

from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Length: 90, 100, 180 & 270cm

Create a raised matwell frame for coir and ribbed matting The professional's choice of stick-down matwell frame Suitable for applying in ...

View full details
from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Matwell Edging Non Floating - Brushed Chrome

from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Length: 90, 100, 180 & 270cm

Create a raised matwell frame for coir and ribbed matting The professional's choice of stick-down matwell frame Suitable for applying in ...

View full details
from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Matwell Edging Non Floating - Antique Bronze

from Original price £28.79
from Original price £28.79
Original price £28.79
from £23.99
from £23.99
Current price £23.99

Length: 90, 100, 180 & 270cm

Create a raised matwell frame for coir and ribbed matting The professional's choice of stick-down matwell frame Suitable for applying in ...

View full details
from Original price £28.79
from Original price £28.79
Original price £28.79
from £23.99
from £23.99
Current price £23.99

Premier Single 9 - Satin Brass

from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The door threshold bars - Premier Single 9 with a rounded profile Choose from ten attractive metal finishes The door threshold bars - Pre...

View full details
from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Premier Single 9 - Polished Nickel

from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The door threshold bars - Premier Single 9 with a rounded profile Choose from ten attractive metal finishes The door threshold bars - Pre...

View full details
from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Premier Double Z9 - Polished Nickel

from Original price £58.79
from Original price £58.79
Original price £58.79
from £48.99
from £48.99
Current price £48.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The carpet threshold Double Z9 delivers quality and style Choose from 10 finishes to complement your carpet The carpet to carpet threshold Do...

View full details
from Original price £58.79
from Original price £58.79
Original price £58.79
from £48.99
from £48.99
Current price £48.99

Premier Double Z9 - Pewter

from Original price £58.79
from Original price £58.79
Original price £58.79
from £48.99
from £48.99
Current price £48.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The carpet threshold Double Z9 delivers quality and style Choose from 10 finishes to complement your carpet The carpet to carpet threshold Do...

View full details
from Original price £58.79
from Original price £58.79
Original price £58.79
from £48.99
from £48.99
Current price £48.99

Premier Floating Vinyl Edge - Satin Brass

from Original price £21.59
from Original price £21.59
Original price £21.59
from £17.99
from £17.99
Current price £17.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £21.59
from Original price £21.59
Original price £21.59
from £17.99
from £17.99
Current price £17.99

Premier Floating Vinyl Edge - Polished Nickel

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Floating Vinyl Edge - Pewter

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Floating Vinyl Edge - Chrome

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Floating Vinyl Edge - Brushed Chrome

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Floating Vinyl Edge - Black

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Floating Vinyl Edge - Antique Brass

from Original price £21.59
from Original price £21.59
Original price £21.59
from £17.99
from £17.99
Current price £17.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

How to join vinyl flooring of different thicknesses Create a smooth and safe transition The Premier Floating Vinyl Edge joins non floating an...

View full details
from Original price £21.59
from Original price £21.59
Original price £21.59
from £17.99
from £17.99
Current price £17.99

Premier Single 13 - Brushed Chrome

from Original price £62.39
from Original price £62.39
Original price £62.39
from £51.99
from £51.99
Current price £51.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The curved edge Premier Single 13 for extra thick carpets Choose from ten attractive metal finishes The Premier Single 13 door thresholds are...

View full details
from Original price £62.39
from Original price £62.39
Original price £62.39
from £51.99
from £51.99
Current price £51.99

Premier Single 4 - Polished Nickel

from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The Premier Single 4 curves down to join thin carpets and natural flooring to vinyl and floorboards Choose from ten stunning finishes The Pre...

View full details
from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Premier Single 4 - Polished Brass

from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The Premier Single 4 curves down to join thin carpets and natural flooring to vinyl and floorboards Choose from ten stunning finishes The Pre...

View full details
from Original price £31.19
from Original price £31.19
Original price £31.19
from £25.99
from £25.99
Current price £25.99

Premier Single 4 - Pewter

from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The Premier Single 4 curves down to join thin carpets and natural flooring to vinyl and floorboards Choose from ten stunning finishes The Pre...

View full details
from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Premier Single 4 - Chrome

from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The Premier Single 4 curves down to join thin carpets and natural flooring to vinyl and floorboards Choose from ten stunning finishes The Pre...

View full details
from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Premier Single 4 - Black

from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Threshold Width: 20mm

Length: 90, 100, 180 & 270cm

The Premier Single 4 curves down to join thin carpets and natural flooring to vinyl and floorboards Choose from ten stunning finishes The Pre...

View full details
from Original price £50.39
from Original price £50.39
Original price £50.39
from £41.99
from £41.99
Current price £41.99

Premier Double Z4 - Satin Nickel

from Original price £55.19
from Original price £55.19
Original price £55.19
from £45.99
from £45.99
Current price £45.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The smart door threshold that joins carpet tiles and sisal Choose from 10 stunning metal finishes The Premier Double Z4 door thresholds are a...

View full details
from Original price £55.19
from Original price £55.19
Original price £55.19
from £45.99
from £45.99
Current price £45.99

Premier Double Z4 - Satin Brass

from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The smart door threshold that joins carpet tiles and sisal Choose from 10 stunning metal finishes The Premier Double Z4 door thresholds are a...

View full details
from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Premier Double Z4 - Polished Nickel

from Original price £55.19
from Original price £55.19
Original price £55.19
from £45.99
from £45.99
Current price £45.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The smart door threshold that joins carpet tiles and sisal Choose from 10 stunning metal finishes The Premier Double Z4 door thresholds are a...

View full details
from Original price £55.19
from Original price £55.19
Original price £55.19
from £45.99
from £45.99
Current price £45.99

Premier Double Z4 - Polished Brass

from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Threshold Width: 30mm

Length: 90, 100, 180 & 270cm

The smart door threshold that joins carpet tiles and sisal Choose from 10 stunning metal finishes The Premier Double Z4 door thresholds are a...

View full details
from Original price £38.39
from Original price £38.39
Original price £38.39
from £31.99
from £31.99
Current price £31.99

Premier Slim Z - Polished Nickel

from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Threshold Width: 22mm

Length: 90, 100, 180 & 270cm

An extra narrow Z bar to cover the join between a carpet and hard floorcovering A high quality slender Z bar for for those who prefer a minimali...

View full details
from Original price £44.39
from Original price £44.39
Original price £44.39
from £36.99
from £36.99
Current price £36.99

Premier Slim Z - Polished Brass

from Original price £37.19
from Original price £37.19
Original price £37.19
from £30.99
from £30.99
Current price £30.99

Threshold Width: 22mm

Length: 90, 100, 180 & 270cm

An extra narrow Z bar to cover the join between a carpet and hard floorcovering A high quality slender Z bar for for those who prefer a minimali...

View full details
from Original price £37.19
from Original price £37.19
Original price £37.19
from £30.99
from £30.99
Current price £30.99

Premier Slim D - Black

from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Threshold Width: 16mm

Length: 90, 100, 180 & 270cm

Ultra narrow double z bar to transition between carpets Choose from 10 fashionable colours or finishes The Premier Slim D door thresholds are...

View full details
from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Premier Wide Lip - Chrome

from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Threshold Width: 37.5mm

Length: 90, 100, 180 & 270cm

The multi-functioned angle edge Premier Wide Lip A substantial 37.5mm wide option in chrome This versatile floor edging creates an elegant, r...

View full details
from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Premier Wide Lip - Brushed Chrome

from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Threshold Width: 37.5mm

Length: 90, 100, 180 & 270cm

The multi-functioned angle edge Premier Wide Lip A substantial 37.5mm wide option in brushed chrome This versatile floor edging creates an el...

View full details
from Original price £41.99
from Original price £41.99
Original price £41.99
from £34.99
from £34.99
Current price £34.99

Premier Wide Lip - Antique Bronze

from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Threshold Width: 37.5mm

Length: 90, 100, 180 & 270cm

The multi-functioned angle edge Premier Wide Lip A substantial 37.5mm wide option in antique bronze This versatile floor edging creates an el...

View full details
from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Premier Wide Lip - Antique Brass

from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99

Threshold Width: 37.5mm

Length: 90, 100, 180 & 270cm

The multi-functioned angle edge Premier Wide Lip A substantial 37.5mm wide option in antique brass This versatile floor edging creates an ele...

View full details
from Original price £32.39
from Original price £32.39
Original price £32.39
from £26.99
from £26.99
Current price £26.99
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Door thresholds designed for looks and outstanding performance

Complete your flooring installation with door thresholds that enhance your home and will last for many years to come. Whether you want to join carpet to carpet, need door threshold strips for hard flooring and vinyl or more specialist door bars such as ramps for solving tricky situations, we offer superb quality and expert advice. Door thresholds and cover plates join two flooring surfaces, creating a smart and secure join. They not only cover up the raw edges of the floor-coverings but protect them from undue wear and tear and avoid trip hazards. Likewise, they neatly cover expansion gaps and unsightly holes. Use them to join flooring across internal door ways, create a frame around matting, butt up to full-drop windows and create zones across rooms. Find the perfect door threshold design for you.

Expert advice and the ultimate in choice

Choosing the right door threshold bar that not only looks good but works with your flooring installation is important to us. That’s why we provide full product information and fitting tips too. If you are still not sure which to buy, please get in touch and we’ll be happy to see if we can help or provide a sample. Likewise, all our products are offered in a fantastic range of finishes to complement most flooring and décor schemes. When selecting, simply refine your choice by using the filter options on this page:width, range and finish (colour).You can scroll down the product pages to see full product information and a diagram as to how the threshold works.