Sierra (.015) outdoor collection: Single Backless Seat

models left to right: XCUBE-1, XCUBE-2, XCUBE-3

simple & open seat

“Sierra enters in the urban and natural landscape in a quiet way; the idea is something silent,
but at the same time the small details, like the tubes of the legs, makes Sierra unique.”
—Natalia Rota Nodari, designer

Nothing should stop us from viewing the Sierra (.015) cube as the most versatile product in the entire collection. It can be used as a seat, side table or pouffe—always capable of surprising us and furnishing both outdoor and home living spaces. The bent pipes are surprisingly lightweight and strong, dispersing heat in the summer and without freezing over in the winter. For excellent performance all year round. The bent pipe structure with a diameter of 18mm is made of stainless steel or polyester powder coated steel tube and hot-dip galvanized steel. Ready-equipped for fastening to the ground with bolts or joined together using steel plates.

Part of the Sierra (.015) collection by by Italian designers Alberto Basagalia & Natalia Rota Nodari.

  • For use in: outdoor environment including those with extreme heat, humidity & salt water air.
  • Structure: 18 mm tubular structure made of hot-dip galvanized, steel.
  • Finish: glossy epoxy powder coat color or satin-finished stainless steel.
  • Stabilization: designed to be bolted to the ground.
  • Max weight: 2500 lb.
  • Lead time: 14 week lead time imported from Italy.
  • Warranty: 5 year warranty (even in Salt-water air environments).


  • ANSI/BIFMA X7.1-2011 (R2016) Standard Method equivalent to CDPH Standard Method v1.1-2010 (Clean Air Gold).
  • LEED – v4.1 Low Emitting Materials (Clean Air Gold).
  • Living Building Challenge (LBC) – Imperative 08 (Clean Air Gold).
  • WELL – Feature 04 – VOC Reduction (Clean Air Gold).


Single backless seat. #XCUBE



  • Skate guards.

    Outdoor skate guards set of 2. #UT15

    • Skate guards prevent skaters from riding/grinding their skateboard wheels on the furniture.
    • Comes in a set of 2.
    • Polished finish.

Single backless seat. #XCUBE

designed by Alberto Basaglia and Natalia Rota Nodari

Alberto Basaglia and Natalia Rota Nodari met while studying at the Politecnico of Milan where they both graduated in architecture.  Shortly after, they founded their studio, BASAGLIA ROTA NODARI.  They completed their first design project in 1999 – the Antennati collection of side tables, clothing racks and more – winning first prize in the Young & Design competition.  This was a powerful sign of much more to come.  Since then, the duo has gone on to win numerous awards and recognition in architecture, design, interior space, food and town planning projects.

These Italian designers aim to transcend the typical image of the Italian designer. The pair achieve this by capturing beauty in equal measure with the technical aspects of their creations. Their visions manifest into award-winning, lovely furniture that captivates and stands the test of time.

“Seizing the specific energies of the person we are communicating with and finding the way to enhance them through the creation of alternative visions, often complementary to that which is already exists.” This is what the duo said about themselves in 2013, during the opening of “Alternative Synergies”.

studio: BASAGLIA ROTA NODARI, Brembate di Sopra (BG), Italy

Explore the other furniture pieces in the Sierra (.015) collection. Click on one of the items below.

Single backless seat.

Custom Modular Builds.

Club chair.


Chaise lounge.

Flat Straight Benches.

Flat Curved Benches.

Straight Benches with Backrests.

Curved Benches with Backrests.


Litter Bins.

To download a model file type, simply click on the file type name.

Single backless seat. #XCUBE

⇩ 2D autoCAD (.dwg)
⇩ 3D autoCAD (.dwg)



Sierra price list 2021 3rd edition pdf (3.23 MB)
Sierra price list 2022 pdf (2.32 MB)


Sierra brochure pdf (7.66 MB)


Sierra postcard sized flyer pdf (1.61 MB)


all symbols Sierra single backless seats zip (402.22 KB)


BIFMA LEVEL 2 certification pdf (467.46 KB)
CLEAN AIR GOLD certification pdf (441.6 KB)


Sierra skate guard assembly instructions pdf (270.18 KB)
Sierra & Tahoe assembly & installation pdf (591.34 KB)