GAVIA straight staircase

GAVIA straight staircase Comfort range — laminated beech, oak or fir, height 288 cm. 15 steps, width 80 cm, riser height 18 cm, tread depth 22 cm, section 210x30 mm, footprint 336 cm, stairwell opening 336x82 cm. Tread depth 22 cm and riser height 18 cm: superior climbing comfort compared to the standard range. Fixings and instruction manual included. Finishing required before installation. Pre-drilling required on beech and oak. Interior use only. Available with or without risers depending on the desired configuration.

Wood species

Glued laminated oak
Glued laminated beech
Fir

Risers

Reference OLEDS

€830.00 incl. tax

Including €1.00 for ecotax

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Straight Staircase GAVIA - Comfort Range, 288 cm, Riser Height 18 cm, Tread Depth 22 cm

The GAVIA straight staircase belongs to the Comfort range from WoodUp, characterised by a riser height of 18 cm and a tread depth of 22 cm, in accordance with the Blondel formula for comfortable use (2x18 + 22 = 58, within the ideal range of 59 to 64). Available in beech, oak or laminated fir, it offers a gentler ascent than the Standard range (riser 20 cm / tread 19 cm), particularly appreciated for intensive daily use or for elderly users.

Designed for a floor-to-floor height of 288 cm with 15 steps, its footprint is 336 cm for a stairwell opening of 336x82 cm. The tread section is 210x30 mm. The comfort of the Comfort range comes at the cost of footprint: 336 cm versus 259–273 cm for Standard straight staircases — to be checked against the available space.

Main features

Specification	Description
Type	Straight staircase, interior, kit
Range	Comfort (riser 18 cm / tread 22 cm - Blondel formula)
Available timber species	Laminated beech / Laminated oak / Fir
Floor-to-floor height	288 cm (trimmable)
Number of steps	15
Riser height	18 cm
Tread depth	22 cm
Width	80 cm without handrail / 82 cm with handrail
Tread section	210x30 mm
Floor footprint	336 cm
Recommended stairwell opening	336x82 cm (without handrail)
Risers	With or without, as preferred
Handrail	Optional — can be added after assembly, reversible left or right
Finish	Raw wood — finishing required before use
Use	Interior use only

Key points

✓ Comfort range: riser 18 cm / tread 22 cm — Blondel formula optimised for climbing comfort
✓ Three timber species: fir (economical), laminated beech or oak (durability)
✓ Deeper tread: tread depth 22 cm versus 19 cm in Standard — foot placed fully on the step
✓ 336 cm footprint: larger than the Standard range — check the available space
✓ Handrail addable afterwards: reversible left or right, fixings included
✓ Pre-drilling required: on beech and oak — dense woods prone to splitting

Installation advice

Check the available footprint (336 cm minimum) and the stairwell opening (336x82 cm recommended) before ordering. The 336 cm footprint is significantly larger than Standard staircases — ensure the room allows 336 cm in a straight line in the direction of ascent.

Assemble according to the instruction manual, pre-drill on beech and oak. Fix to the floor and upper support. Two people recommended. Apply the finish after complete installation. The handrail can be added after assembly — reversible left or right.

Maintenance and protection

Apply a finish suited to the chosen timber species before first use. For fir: 2-coat varnish or oil-wax. For beech and oak: 2–3 coat varnish recommended (maximum wear resistance). Renewal every 5–7 years. Cleaning: damp cloth, pH neutral.

WoodUp Tip

The GAVIA Comfort range is the straight staircase to choose when climbing comfort takes priority over compactness. Its tread depth of 22 cm allows the foot to be placed fully on each step, without overhang at the front — a noticeable difference in daily use, particularly for elderly people, children, and when carrying objects. The trade-off is a footprint of 336 cm — it is essential to verify that the available space permits this.

Important before purchasing: the Comfort range requires 77 cm more floor space than a Standard CHEVALARD for the same height (336 vs 259 cm). If the space exceeds 336 cm, the GAVIA is the best choice in terms of comfort. If the space is insufficient, the quarter-turn Comfort models (SELA, FURKA, BAVAT) allow you to benefit from the 22 cm tread depth within a reduced footprint.

Frequently asked questions

What is the Blondel formula and why is it important?

The Blondel formula (2H + G = 59 to 64 cm) defines the optimal relationship between riser height (H) and tread depth (G) for a comfortable staircase. For the GAVIA: 2x18 + 22 = 58, which is at the lower end of the range but compliant. A tread depth of 22 cm with a riser height of 18 cm produces a natural stride similar to walking on a flat surface — this is the most ergonomic combination for an interior staircase.

What is the difference between the Standard range and the Comfort range?

The Standard range (CHEVALARD, FONTBRUNO) has a riser height of 20 cm and a tread depth of 19 cm — reduced footprint, acceptable comfort. The Comfort range (GAVIA, FURKA, SELA, BAVAT Comfort) has a riser height of 18 cm and a tread depth of 22 cm — gentler ascent, full foot placement, but a footprint 50 to 80 cm larger. The choice depends on the available space and the importance placed on comfort.

Can the GAVIA be cut down for a height of 270 cm?

Yes. For 270 cm, the cut is approximately 18 cm on the stringers, leaving the riser height unchanged (18 cm x 15 = 270 cm exactly). The GAVIA is ideally designed for 288 cm — for 270 cm, it works perfectly without any cut if one step is removed, or with a slight cut if all 15 steps are retained. Refer to the diagram in the instruction manual for the precise calculation.

Is the GAVIA available with an integrated handrail?

The GAVIA is sold without a handrail. The handrail is to be ordered separately from the WoodUp accessories range. It can be fitted after the staircase has been assembled and is reversible left or right. See the accessories section for handrail models compatible with an 80 cm straight staircase in the Comfort range.

Which timber species to choose for the GAVIA — fir, beech or oak?

Fir is the economical option — suitable for moderate use, paint or varnish finish. Laminated beech is the balanced choice — superior resistance, regular grain, light tone. Laminated oak is the premium quality choice — pronounced grain, warm tone, maximum durability. For a main staircase with heavy traffic, beech or oak are recommended. Fir is suitable for standard family use.

Why choose the GAVIA straight staircase rather than a quarter-turn Comfort staircase?

A straight staircase is the simplest solution to install and the easiest to secure with a handrail. It is suitable if a space of 336 cm in a straight line is available and if the stairwell opening is aligned along that same axis. Quarter-turn Comfort staircases (SELA, FURKA) are preferable when the stairwell opening requires a change of direction or when the space does not allow 336 cm in a straight line.