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Fir riser base
The fir riser base optimises the functionality of your staircases thanks to its durability and adjustable design. Its initial height of 20 cm allows for bespoke adaptation, and it is easy to install for interior projects.
Solid fir riser base – adjustable and trimmable
The solid fir riser base, delivered as a kit, is designed to adapt the starting height of an interior staircase. Made from solid wood machined in the workshop, it compensates for level differences between the floor and the first tread while maintaining aesthetic continuity. Trimmable on site, it is easily adjusted to the configuration of each installation.
Main features
| Feature | Description |
|---|---|
| Product type | Riser base for kit staircase |
| Material | Solid fir (Abies alba) |
| Dimensions | L 100 cm × D 50 cm × H 20 cm |
| Use | Interior use only — service class 1 according to NF EN 335 and NF EN 350: wood used in dry conditions (moisture content < 20%), not exposed to water. |
| Adjustability | Trimmable in length and height on site |
| Finish | Raw wood to be treated (oil, varnish or microporous wood stain) |
Key points
- Designed to adjust the starting height of an interior staircase
- Manufactured from solid fir machined in the workshop
- On-site trimmable for precise adjustment
- Compatible with all WoodUp fir staircases
- Quick installation on a flat, dry surface
Installation advice
- Prepare a flat, dry surface before installation.
- Measure the height to compensate (up to 20 cm standard).
- Cut the base to the required dimension using a suitable saw.
- Position the base under the first tread and check the level.
- Fix mechanically using the screw kit provided.
Maintenance and protection
Solid fir must be protected against moisture variations. Apply a natural oil or acrylic varnish after installation. Avoid prolonged contact with water and maintain an ambient moisture level below 20%. A light sanding and a new coat of protection can be applied every 3 to 5 years.
FAQ – Riser base for fir staircase
- How to install a riser base under a staircase?
Place the base on a flat support, adjust to the desired height, then fix it mechanically before installing the staircase. - Does this base suit all types of staircases?
It is compatible with straight, quarter-turn and half-turn fir staircases from the WoodUp range. - Is fir wood suitable for interior use?
Yes, fir is classified for interior use (service class 1) according to standard NF EN 350. - Can the base be trimmed on site?
Yes, the solid wood can be cut with a circular saw for precise adjustment on site. - Should a protective finish be applied before installation?
It is advisable to oil or varnish the surface after cutting to protect the wood against ambient moisture.
- Width (cm)
- 100
- Species/material
- Fir
- Parcel weight (kg)
- 12,000000
- Height
- 20
- Depth
- 50
- Net Weight
- 12,000000
ESO100
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Dispatch within 10 days
Dispatch within 10 days when the product is in stock *.
* Except bespoke products
Dispatched within 6-8 weeks
Dispatched within 6-8 weeks for personalised and made-to-measure products.
Secure payment
Payment in 1 or 3 instalments at no extra cost. Bank transfer, cheque or PayPal
Satisfied or refunded
Satisfied or refunded if returned within 14 calendar days (Sundays and public holidays included) following delivery.
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