55" Montreal Classic Spiral Staircase Kit - Grey

Number of Treads
Tread Type

The Dolle Montreal Classic was designed for home owners who would like to combine their preference for light, comfort and Nordic designs. The Montreal series offer several options to match style and taste to blend into any design. Installation is simple with minimal heavy elements; the staircase offers a modern showcase for any internal space. The Montreal spiral staircase is highly functional and unique in its Scandinavian design heritage.

  • Two tread options available
  • Vertical infill with multiple baluster options per tread
  • Designed for interior use
  • Suitable for high traffic areas
  • Additional balcony railings available

Tread Material: Varnished beech wood veneer or solid beech wood

Structure Material:  Steel with painted powder coating

Infill Material:  Steel with painted powder coating

Handrail Material: PVC

Staircase Height: 80 11/16” – 138 ¾”

Tread Options: 9 to 14

Tread Rise: 8 1/16” – 9 ¼”

Ceiling Opening Required: 59" x 59"

Weight Capacity: 440 point load, 2,425lbs total weight

Important: consult your local building inspector for any questions and specifics regarding compliance with the local building codes prior to purchase.


Tread Options Chart


Standard 11 Tread

12 Tread

13 tread

14 tread

Floor to Floor Height

87-3/8" x 108-11/16"

94-11/16" x 117-11/16"

101-15/16" x 126-3/4"

109-1/4" x 135-13/16"

Number of Steps

(treads + landing)





*Chart shows that more than one tread count is acceptable for some stair heights.