
Timber Front Doors S-400
Modern timber entrance doors, supplied and fitted for trade and commercial projects in Lincolnshire
Tradeglaze is the leading supplier and installer of high-performance entrance doors. Our S-400 bespoke wooden front doors are incredibly secure and stylish, boasting an unrivalled reputation with the most discerning customers.
We supply and install in Lincolnshire, Nottinghamshire and South Yorkshire, including Sleaford, Doncaster, Newark and Gainsborough and all the surrounding areas. Contact us for a trade estimate for your project.
Features & Benefits
Wide Range of Designs
With over 30 different S-400 door styles built to last a lifetime, you can choose a stunning stain or oil treatment. Alternatively, explore our extensive range of RAL paint finishes for a personalised touch.
Energy Efficient
Our high-performance S-400 Series doors achieve Passive House standards when crafted using our 100m flush profile, achieving a U-Value of 0.7 W/m²K.
Engineered For Performance
Each S-400 timber door is crafted to perfection by merging advanced engineered timber layers with a robust wooden frame, promising unparalleled durability.
Exceptional Security
Substantial timber profiles are fused with the highest quality door hinges, security grade multi-point locks, every door with designed-in glazing features triple-glazed, VSG toughened and laminated glass units for extra security.

Contact us for a Trade Price
Interested? Visit our beautiful Showroom and experience the stylish S-400 first-hand. Feel the quality in every detail, and see the impact they can have on your trade, commercial or refurbishment projects. Our showroom is not just a space, it’s an immersive experience designed to spark your imagination and explore endless opportunities with our quality products and highly knowledgeable designers.

Timber Entrance Door Options
Our S-400 high-performance timber entrance doors are designed for minimal maintenance, to preserve their stunning appearance and optimal functionality. Create a bespoke door tailored to your project by choosing from our premium wood species—Spruce or Oak—and enhance its natural grain with a stain or oil treatment. Alternatively, explore our extensive range of RAL finishes, with the option to choose a single exterior colour and a contrasting shade for the interior, creating seamless integration within the home.
Our stunning S-400 luxury wooden front doors can be crafted on an impressive scale, reaching up to 1250mm in width and 2700mm in height. With a wide selection of styles, including options with sidelights, toplights, pull bars, and lever handles in various colours, there’s an S-400 wooden front door to complement any property and suit every taste in décor.

Superior Energy Efficiency
The S-400 high-quality timber doors are engineered to meet the standards of Passive House performance. When crafted with our robust 100mm flush profile and enhanced with triple glazing, these bespoke timber doors achieve an outstanding U-Value of 0.7 W/m²K. This exceptional thermal efficiency not only minimises heat loss but also contributes to superior energy performance, making them an ideal choice for projects requiring airtight construction and sustainable building solutions.

Exceptional Security
Our S-400 bespoke wooden entrance doors are expertly crafted by combining advanced engineered timber layers with a robust wooden frame. Designed for lasting durability, they resist warping and twisting, ensuring long-term performance. Built to achieve part of the European standard for burglar resistance security levels, these doors feature substantial timber profiles, high-quality door hinges, security-grade multi-point locks, and precision-engineered hardware.
Every glazed design includes triple-glazed, VSG toughened, and laminated glass units for enhanced security and complete peace of mind.
Frequently Asked Questions
Got a question about our timber entrance doors? You can find the answers here. If you still have a question for us, speak to a member of our team in Lincoln today.
Why choose a timber front door?
Timber doors, such as the Spitfire S-400 series, are renowned for their strength, durability, and superior thermal performance. When crafted using 100mm profile they can achieve an impressive a U-Value of 0.7 W/m²K.
What sizes are available for the S-400 wooden front doors?
The S-200 series accommodates a range of sizes to suit various architectural needs. The minimum height is 1999mm, with a maximum height of 2700mm. Widths range from a minimum of 949mm to a maximum of 1250mm.
What timber is used for the S-400 series entrance door?
Spitfire S-400 doors are handcrafted from a selection of premium wood species – Spruce, Oak or reclaimed vintage timber, to offer versatility and sophistication. Opt for an oil, stain or paint finish and elevate your design further with our diverse collection of contemporary and traditional door handles.
I am looking for an installer near me to supply and fit a S-400 timber entrance door. Do you operate in my area?
Tradeglaze supplies trade and commercial projects in Lincolnshire, Nottinghamshire and South Yorkshire. You can visit our beautiful Showroom in Lincoln and see life-size samples of the S-400 front door series.
If you have any doubts as to whether we work in your town, just get in touch. We’ll happily confirm.
Why choose a timber front door?
Timber doors, such as the Spitfire S-400 series, are renowned for their strength, durability, and superior thermal performance. When crafted using 100mm profile they can achieve an impressive a U-Value of 0.7 W/m²K.
What sizes are available for the S-400 wooden front doors?
The S-200 series accommodates a range of sizes to suit various architectural needs. The minimum height is 1999mm, with a maximum height of 2700mm. Widths range from a minimum of 949mm to a maximum of 1250mm.
What timber is used for the S-400 series entrance door?
Spitfire S-400 doors are handcrafted from a selection of premium wood species – Spruce, Oak or reclaimed vintage timber, to offer versatility and sophistication. Opt for an oil, stain or paint finish and elevate your design further with our diverse collection of contemporary and traditional door handles.
I am looking for an installer near me to supply and fit a S-400 timber entrance door. Do you operate in my area?
Tradeglaze supplies trade and commercial projects in Lincolnshire, Nottinghamshire and South Yorkshire. You can visit our beautiful Showroom in Lincoln and see life-size samples of the S-400 front door series.
If you have any doubts as to whether we work in your town, just get in touch. We’ll happily confirm.