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Sanded blue
Flat garage threshold with custom-cut uperside
  • Authentic Belgian blue stone
  • Easy to configure
  • Gray or blue sanded finish
  • Renier: Top Quality from Our Own Quarry
Miter Cut Option
By default, a miter cut is always 45°, either with an inside or outside angle. Other angles are possible; please specify this clearly in the "Comments" field (at checkout).
Drawing of an L-shaped mitered door sill (interior)
Solid construction
The entire garage threshold is solid; there is no glued-on edge.

Flat garage threshold with custom-cut uperside

€ 0,00

Price per item, including VAT

€ 0,00

Price per square meter, excluding VAT and without options

Easily customize your ideal flat garage threshold with a glued upstand and beveled edge here. Select the desired finish, thickness, length, and width below, along with any optional features. The price per piece and per m² is calculated automatically. You can always adjust the finish as desired. Then click “Add to Cart” and complete your order. Delivery time: 2 weeks.

Available on backorder


L miter cut on the inside
L miter cut on the outside

R miter cut (inward)
R miter cut on the outside

Total area per piece: 0

Total area: 0

Our Belgian blue stone is one of the most sustainable materials on Earth. This ancient stone, which has been formed over millions of years, is quarried and processed locally in an environmentally friendly and sustainable manner.

You can easily customize this flat garage threshold—with its bonded uper and beveled edge—to suit your needs:

  • Blue stone from our own quarry (La Préalle in Sprimont)
  • Finish:
    • Top, front, and both ends (5 cm) sanded blue or gray
    • The front and both ends (5 cm) can optionally be finished with a beveled edge for a stylish look
  • Straight cut, without a drip groove
  • The edge banding is glued on; it is 2 cm thick and 1 cm higher than the surface. As an option, it can also be made from solid material.
  • Thicknesses ranging from 5 cm to 11 cm. Please note that the height of the upstand is included and is always 1 cm greater than the top surface of the threshold. For example, a height of 5 cm results in a 4-cm-high threshold with a 5-cm-high upstand.
  • The width includes the width of the upstand. For example, a threshold that is 18 cm wide is 18 cm wide in total, including the 2 cm width of the upstand.
  • Complete flexibility in dimensions. For lengths greater than 1.80 m, we will cut the material to size. If you need specific cuts, please be sure to let us know.
  • The front end is beveled to allow a car or bicycle to drive in easily

  • Options:
    • 45° miter
    • Rounded edge (see ‘Design your own flat garage threshold with an upstand in Belgian blue stone—rounded’)
    • Solid construction instead of one with a glued-on edge

 

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Frequently Asked Questions

Why choose a garage threshold made of Belgian blue stone?

A garage threshold provides a strong and durable transition between the garage floor, the exterior wall, and the outdoor paving. The correct thickness and support must be tailored to the load and the on-site conditions.

Yes. The length, width, thickness, and finish can be selected based on the garage opening and the adjacent floor or driveway structure.

The straight design creates a clean, understated finish and is easy to pair with modern or classic facade details.

Yes. The upstand can help clearly define the joint with the garage door and the waterproofing.

That depends on the thickness, span, foundation, and installation. For applications where the structure will be driven over, the sill must be fully and securely supported; if in doubt, have the structure inspected by a technician.