For this special lookbook sponsored by Danish design company D Line, we've selected ten interiors that showcase architectural details by the brand including door handles, taps and drawer pulls.

Door furniture and other pieces of practical hardware provide the finishing touches to interior schemes, and can create physical touchpoints that play a significant role in how people interact with the spaces they inhabit.

D Line has been designing and manufacturing architectural hardware and sanitary ware since 1971. Collaborators include Danish architects Knud Holscher and Arne Jacobsen and British designer Tom Dixon.

Here are 10 projects where D Line's products have been used to add timeless accents to interiors with natural materials, including homes, hotels, restaurants and even a medical facility.

St Catherine's College, Oxford, by Arne Jacobsen and Knud Holscher

Jacobsen designed the modernist concrete exterior as well as the interior and furnishings of St Catherine's College at the University of Oxford, which opened in 1962.

Details as small as the handles on the interior doors – named AJ lever handles in reference to the designer's initials – echo the curved, smooth form of the college's larger design elements.

Äng restaurant, Sweden, by Norm Architects

Danish studio Norm Architects has designed Äng, a restaurant in Sweden with both an above-ground structure resembling a greenhouse and a subterranean wine cellar.

D line's distinct L lever handle in a gunmetal finish was used on doors throughout both spaces, where it matches other metal lighting fixtures as well as the building's structural components.

Find out more about Äng restaurant ›

SAS Royal Hotel, Copenhagen, by Arne Jacobsen

Another project by Jacobsen, who designed all the elements found in the SAS Royal Hotel in Copenhagen – which opened in 1960 – in line with his all-encompassing approach to architecture and interior design.

Subsequent remodelling means that only Room 606 remains in its original form. Here, steel AJ lever handles were chosen to tie in with the cool duck-egg blue walls and other silver hardware, such as the frame of the blue seats and sofa.

Find out more about SAS Royal Hotel ›

Archipelago House, Sweden, by Norm Architects

This holiday home by Norm Architects is situated in a coastal area of Sweden and combines Scandinavian design with Japanese aesthetics.

The L lever handle in charcoal from D line's Holscher range provides a steady rhythm of graphic contrast in the interior, which primarily uses light wood furnishings and bright neutral finishes.

Find out more about Archipelago House ›

Private Summer Residence, Denmark, by Rubow Architects

Designed by Danish studio Rubow Architects, this holiday home in Denmark aims to blend in with its surroundings by using neutral tones and floor-to-ceiling windows that allow natural light and views of nature into the house.

The L lever handle provides an unobstructive finish to the house's doors and helps give the house its indoor-outdoor feel.

Barbara's atelier, Copenhagen, by Barbara Bendix Becker

Textile designer Barbara Bendix Becker's Copenhagen-based antiques and collectibles atelier is full of Nordic ceramics, lighting and furniture by celebrated Scandinavian designers.

The brass Arne Jacobsen lever handle features alongside these other design classics and has been seamlessly integrated with other warm-toned metal finishes, as well as the atelier's honey-coloured wooden elements.

Stockholmsgade bathroom, Copenhagen, by Emil Thorup

This bathroom scheme created by interior designer Emil Thorup is characterised by its rhythmic herringbone tile floor, muted sage-coloured walls and round-cornered, freestanding bathtub.

D-line's Qtoo bathroom hardware collection in a subtle brushed-steel finish was used for part of the bath, sink and shower setup, and creates a nice metallic contrast to the pale green walls and natural materials used in the room.

Dentology+ clinic, Antwerp, by Norm Architects

Norm Architects went against the grain with the design of this dental surgery, which avoids overtly clinical interiors in favour of soft neutral finishes that encourage calmness in patients.

Charcoal-toned L lever handles punctuate the otherwise light and airy interior, alongside unexpected homely details like low-slung sofas and translucent draped curtains.

Find out more about Dentology+ clinic ›

&Shufl x D Line collaboration

Danish design company &Shufl provides carpentry and hardware elements that are compatible with IKEA kitchens, bathrooms and wardrobes to give existing schemes a facelift.

D Line's bar handles, which have featured in its catalogue for over 50 years, are used for the &Shufl designs, where they come in a curated palette of different colours and finishes.

Luke Arthur Wells x Fat collection by Tom Dixon

British interior designer Luke Arthur Wells devised an interior scheme that encourages peacefulness by using rounded furniture, handmade ceramics and soft floor coverings.

D Line's FAT lever handle – part of a wider collection by Dixon – is shorter, thicker and more rounded than traditional door furniture and further softens the already gentle interior.

This is the latest in our series of lookbooks providing curated visual inspiration from Dezeen's image archive. For more inspiration see previous lookbooks showcasing sociable split-level living spaces, subtly installed lifts, cosy cabins and opulent hotels.

This lookbook was produced by Dezeen for D line as part of a partnership. Find out more about Dezeen partnership content here.