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STM Sapino and Sapino A

The all-timber STM Sapino and Sapino A (the triple-glazed counterpart) windows are made using only the highest quality timber. This is a classic and stylish window, suitable for renovations or new builds.

One of the main requirements is that it must be knot-free. This avoids any brown rings from knots that will eventually penetrate through the paint.

Like most traditional Scandinavian timber windows, the Sapino has a flush exterior, with only the lower drip projecting out from the frame.

To enhance the traditional Danish appearance further, casement fasteners can be chosen for a classic handle choice, interior timber can have traditional moulding and almost any decorative glazing bar arrangement can be configured.

Full Details
Heartwood is naturally waterproof. It has a high content of oils and resins, which contain fungicidal substances, and absorbs only 20% moisture. Timber heartwood is a perfect material for windows and doors, as wood starts to decay at 30% moisture. 90% of the Sapino timber is made from heartwood.
All timber components are given STM’s special surface treatment. As well as introducing a unique Danish treatment oil, the timber is sanded and coated with water-based paint. STM use 20%-30% more paint than the industry requirement. Combining this with a solid frame design gives the product a long life.
All of STM’s products have a positive environmental profile and they only use green energy.
STM pride themselves on creating windows and doors to suit all environments and homes. If you have any special designs for your windows or doors, be sure to let us know!
STM Windows is a Danish Manufacturer of high quality, made-to-order windows and doors which are both timber (softwood, mahogany and oak) and aluminium clad.
With over 45 years of experience and utilising state of the art manufacturing facilities, their focus is on creating high quality, superb products and providing first-class service and back-up.
STM have a complete range of windows and doors to provide a complete solution for your dream home. Their products achieve the highest levels of energy and environmental performance to ensure comfort that won’t cost the earth.

TimberKnot-free timber heartwood
Warranty5 years
Lead Time8-10 weeks from sign off
Best U-ValueOverall: 0.95 W/m^2k
Ug: 0.45 W/m^2k
Finishes Any RAL Colour for both timber and aluminium
Click here for standard colours
GlazingDouble, Triple, Obscure, Solar, Laminated, Toughened
Performance and
2 or 3 layers of low-energy glass panes, with a warm edge
powder coated Aluminium Glazing Bead
All units are filled and sanded before painting (130-140 microns)
Maximum SizesClick here for sizes
Manufactured inDenmark
Opening Configurations

Fixed Frame

Fixed Frame Configuration

Side Guided

Side Guided Configuration

Side Hung

Side Hung Configuration

Top Guided

Top Guided Configuration

Tilt and Turn

Tilt Turn Configuration

Our Configuration Options for Bespoke Windows page contains additional information about each of the options shown above, it may also be helpful in choosing how to configure your windows to best suit your needs.


Single Door

Entrance Door Configuration

Double Doors

French Doors Configuration

Tilt and Turn

Tilt Turn Configuration

We have and extensive range of doors available in STM Sapino, the images above show some of the general configuration options available. For more information about the opening types and how each can best be used see our Bespoke Doors page.

For more in-depth options on the look of single or double doors our Choosing a Panelled Door and Choosing a Glazed Frame-Door pages will go into more detail.


Window handles

Stm Tinium top guided window with hoppe handle
Satin Chrome Locking Window Handle
STM non locking window handle
STM Tilt Turn window handle

Entrance and Panel Door handles

STM Entrance  Door Handle

Terrace Door handles

STM Internal thumb turn and window handle on a terrace door

Our Danish Window and Door Handles blog post goes into more detail about the handles available for our STM products.


RAL Colour options in the standard range for STM Sapino

For a full list of colour options including clear laquers and special colours, please see the STM brochure.

RAL7013 – Brown grey

RAL8016 – Mahogany brown

RAL8007 – Fawn brown

RAL6009 – Fir green

RAL3001 – Signal red

RAL8019 – Grey brown

RAL7004 – Signal grey

RAL3011 – Brown red

RAL5010 – Gentian blue

RAL6001 – Emerald green

Timber Stain Options

Where you see a next to a colour, clicking on it will take you to a page of our client galleries that use that RAL Colour.
Some colours are subject to additional lead time from STM.
Colours shown should not be used in place of an official RAL colour sample. We cannot guarantee colour-accuracy when viewed on-screen or printed out.

If you’re looking for a softer, more pastel-like colour range, the NCS colours are also available for this product at an additional cost.
NCS Inspire Colour Chart
Chop Sample
STM SapinoA Chop Sample
STM Sapino Chop Sample


Below are some of our recent galleries which include STM Sapino

Contact us!

For any questions about our products and services, or to get your quote,
please get in touch by phone, email, or using our in-browser contact form!

Midlands : 01608 684 607
Leamington: 01926 935 607
London: 0203 633 0476
E-mail : sales@enlightenedwindows.co.uk
Contact Form: Contact Us