Measuring

Irregular, trapezium and notched bay windows

Most of the baywindow seats we make are not rectangles. Hong Kong window sills often taper, cut on the diagonal, or step around a wall. That is normal — and there is no extra charge for shape.

Maximum length × maximum width is enough for a first quote.
For an irregular, trapezium or notched seat, draw a basic outline and label every side length. Upload that sketch (photo, screenshot or CAD) with your quote.
Notches, diagonal cuts, and different top and bottom widths are everyday work for us — include those lengths, not just the overall rectangle.
Any size or shape is welcome. We do not add a surcharge because the plan is a trapezium.

Handmade pieces carry a ±2 cm tolerance. Returns and remakes inside that range are not accepted — see Terms

Customer-style dimension sketches

These drawings show the level of detail we need: every outer side, plus offsets for angles and notches. Paper, phone photos and CAD are all fine.

Trapezium cushion with a notched left edge and a diagonal right side

Near-rectangle with an angled top-right cut and a small step

Long seat with an angled right end and different top and bottom widths

Five-sided seat with an angled top-left corner cut

Bay-window outline with notches at the top and bottom corners

Long seat with a notched left edge and an angled right trapezium end

Seat with a sloping top edge and unequal left and right heights

Trapezium seat with an angled top-right cut

Ready to measure yours?

Send max length and width for a first quote, and upload a sketch if the shape is irregular.

Get a quote How to measure