Double quarter-turn staircase GOULES 180x180 Fir

Name: Double quarter-turn staircase GOULES 180x180 Fir
Brand: Levigne
SKU: EDQTSD180
Price: 1592 EUR
Availability: PreOrder

GOULES 180x180 double quarter-turn staircase in solid fir — 285 cm height. 15 steps, width 90 cm, step rise 19 cm, tread depth 21 cm, section 220x32 mm, stairwell opening 180x180 cm. Delivered in 4 packages. Available with or without risers. The double quarter-turn (two rotation landings) is suited to large square stairwell openings. Fixings and instructions included. Untreated raw fir — finish required before installation. Interior use only. Compatible with PUECH and TRELIS handrails — check direction before ordering.

Riser

Quarter turn

Double quarter-turn left
Double quarter-turn right

Reference EDQTSD180

€1,592.00 incl. tax

Including €3.00 for ecotax

Made to order. Lead time 6-8 weeks

Quantité

Paiement :

Paiement en 2x, 3x, 4x avec

GOULES 180x180 Double Quarter-Turn Staircase - Fir, 285 cm, Stairwell Opening 180x180 cm

The GOULES 180x180 staircase is a double quarter-turn staircase in solid fir, designed for configurations where the staircase must make two 90° changes of direction. Its name "180x180" refers to the dimensions of the required square stairwell opening: 180x180 cm. It is designed for a floor-to-floor height of 285 cm with 15 steps, a width of 90 cm and a step section of 220x32 mm.

The step rise is 19 cm for a tread depth of 21 cm — generous dimensions offering greater climbing comfort than the Standard range (step rise 20 cm / tread depth 19 cm). The total staircase dimensions are 1800x1800x2850 mm (W x D x H). Delivered in 4 packages. Available with or without risers and handrail.

Main specifications

Specification	Description
Type	Double quarter-turn, interior, kit
Wood species	Untreated solid fir
Floor-to-floor height	285 cm (can be cut down)
Number of steps	15
Step rise	19 cm
Tread depth	21 cm
Width	90 cm
Step section	220x32 mm
Total staircase dimensions	1800x1800x2850 mm (W x D x H)
Recommended stairwell opening	180x180 cm
Risers	With or without, as preferred
Direction	Right or left — to be specified when ordering
Handrail	Optional — non-reversible, direction linked to the direction of the staircase ordered
Finish	Raw fir — finish required before use
Use	Interior use only

Packaging

✓ 4 packages: standard delivery

Key points

✓ 180x180 cm square stairwell opening: symmetrical DQT configuration — two quarter-turns, centred stairwell opening
✓ Tread depth 21 cm: greater than the Standard range (19 cm) — increased climbing comfort
✓ 220x32 mm section: wide and thick steps — low deflection under load
✓ Width 90 cm: comfortable passage, suitable for moving furniture
✓ 4 packages: organised handling for large components
✓ Can be cut down: possible adaptation to floor-to-floor heights below 285 cm

Installation advice

The stairwell opening must be strictly square at 180x180 cm minimum — check squareness before ordering. The total footprint of 1800x1800 mm means that both directions of the staircase occupy a floor area of 1.8m x 1.8m. Check that the available space in the room can accommodate this size. The direction of rotation (right or left) must be determined before ordering.

Delivered in 4 packages: allow sufficient storage space before assembly. Assembling a DQT requires a minimum of two people and a full day's work depending on experience. Follow the assembly order indicated in the instructions carefully.

Care and protection

Apply a protective finish before first use. For a frequently used fir DQT, a 2–3 coat staircase varnish is recommended for maximum resistance. Renewal every 5–7 years. Cleaning: damp cloth, neutral pH. Check the tightness of fixings once a year.

WoodUp Tip

A double quarter-turn staircase requires a square stairwell opening of 180x180 cm — this is the main constraint. Before ordering, check that your structure allows an opening of this size to be made (load-bearing elements, joists). If your existing stairwell opening is less than 180x180 cm, the ROCLES 160x160 (160x160 cm stairwell opening) may be an alternative. If your stairwell opening is rectangular, single quarter-turn staircases (QT top or bottom) are more suitable.

What to know before buying: a DQT is the most complex staircase to assemble as a kit. Allow a full day for assembly and two people who are competent at DIY. The instructions are detailed but the assembly remains more demanding than a straight or single quarter-turn staircase.

Frequently asked questions

What is the difference between the GOULES 180x180 and the ROCLES 160x160?

The GOULES 180x180 is in fir with a stairwell opening of 180x180 cm, 15 steps, width 90 cm and section 220x32 mm. The GOULES 160x160 is also in fir with a stairwell opening of 160x160 cm — more compact but with a reduced width. The 180x180 is more comfortable (tread depth 21 cm, width 90 cm) and is the preferred choice when the available stairwell opening allows it.

Can the GOULES 180x180 be cut down for a height of 264 cm?

Yes. The staircase is designed for 285 cm. For 264 cm, it is possible to remove one step (step rise approximately 19 cm) and then cut the stringers back by approximately 2 cm to adjust. This modification reduces the original footprint by approximately one tread depth. The intermediate quarter-turn and the top landing do not change — they are fixed in the design.

How do I check that my stairwell opening is suitable for the GOULES 180x180?

The stairwell opening must be square at 180x180 cm minimum, on finished dimensions (cladding and coverings included). Measure the stairwell opening diagonally to check squareness — a non-square stairwell opening causes alignment problems during assembly. Allow 2–3 cm extra in length and width for installation tolerances.

Does the GOULES 180x180 need to be wall-fixed or is it self-supporting?

The staircase is fixed to the floor at the bottom and to the floor structure at the stairwell opening at the top. A lateral wall fixing can be added to reinforce stability but is generally not compulsory if the top and bottom fixings are solidly made. Consult the instructions for fixing specifications according to your configuration.

What finish do you recommend for a heavily used fir DQT?

For a high-traffic double quarter-turn main staircase, an aqua-polyurethane staircase varnish in 3 coats is the optimum protection. The steps of a DQT, particularly the winder steps at the turns, are subject to varied stresses — a thick varnish holds up better than oil-wax in the long term. Renew every 5 years on the steps, every 7 years on the stringers.

Why choose a double quarter-turn staircase rather than two single quarter-turns?

A double quarter-turn staircase is a one-piece solution designed to make a complete half-turn (180°) when ascending, within a square footprint. It is the solution when the arrival direction is opposite to the departure direction and the room does not allow a straight or single quarter-turn staircase. The square footprint (180x180 cm) is more predictable than an L-shaped staircase.