To play through

Tools

Six pieces that answer a question before anyone picks up the phone: how much light, from which direction, at what angle, in what colour — and which product.

Tool

Two dimensions, one answer.

Enter the width and height of your opening. You will see which systems are built at that size at all, whether it works by hand or needs a motor — and the wind speed at which that particular installation has to be retracted.

Area 2.16 m²

20 of 20 systems fit

0 do not fit — why

A calculator is no substitute for a survey. Lintel depth, façade build-up and fixing substrate all play a part and cannot be derived from two numbers — only the on-site measurement is binding.

Request a survey

One day, nine positions

The same blind. Nine times of day. The angle makes the difference.

Cool morning light falls flat through an almost closed venetian blind

06:1014 % open

The sun is low. Almost closed is enough to take the glare away — and still keep the room bright.

White aluminium slats in morning light, seen close up

08:0028 % open

Breakfast light. Open enough for the view outside, no raking light across the table.

10:0046 % open

Working light. The slat throws the light onto the ceiling instead of onto the screen.

12:3020 % open

Highest sun, heaviest load. This is when the blind decides how warm the room will be at 17:00.

Warm shadow stripes from a wooden blind on a wall

14:0034 % open

The shadow travels. Set it once and never adjust it, and by four you are sitting in the glare.

Soft afternoon sun behind a blind, a plant backlit

16:2058 % open

The heat eases off, the light turns soft. You can let more of it back in.

Evening sun glowing through a wooden blind

18:4572 % open

The half hour you keep a house for. No sun shading should take it away.

A last shaft of light falling at an angle through a dark blind

20:3088 % open

Almost fully open. What still shields you now is the wall, not the blind.

A closed blind at night, residual light from outside

22:404 % open

Closed. Not because of the sun — because of the street, the warmth, the sleep.

Tool

Where your sun stands, before anyone comes round.

Calculated for Trimbach, 47.35° north. Choose the compass direction of your façade and the month — the rest is astronomy, not opinion.

Façade faces

Month — Juli

Time of day — 13:00

Result

Südfassade im Juli

Choose a direction.

—Height

—Azimuth

—Sun on façade

Light control

Move the slider.

That is exactly what a venetian blind does: it turns the slat steplessly, from fully open to fully closed. In between lies the whole difference between a room you can work in and one you cannot stand.

Not a picture, not an animation — this calculates the incoming light in real time.

Angle 56° Light 38 %

Tool

Choose a colour, see it at once.

The 31 shades Schenker Storen carries for slat blinds and roller shutters — with their numbers and price group. Thirteen carry no surcharge; the rest cost 15 per cent more, waived from an order of 200 m². Beyond these, over 1000 NCS and RAL shades are available for outdoor use.

Deep black matt 005 · RAL 9005 matt Standard colour, no surcharge

no surcharge
Group 1 — 15 %
Group 2 — 15 %, longer lead time

Screen colours are approximations. The binding reference is always the colour sample we bring to the survey. There is no screen preview for the fabrics — openness and weave only show on the sample book.

Colour values sampled from the Schenker Storen colour cards: "Colours for slat blinds and roller blinds", edition SSAG-04-2026, and "Frame colours for awnings", edition SEAG-04-2026. Screen colours are not binding references — we bring the sample card to the survey.

Effect

The same room, two hours apart.

Drag the handle. On the left the room without sun shading at half past one, on the right the same room with the blind half closed. Same time, same window.

House with a red awning extended over the terrace

without sun shading with a venetian blind

Simulation — the same photograph, with slat shadows and corrected exposure on the right. Not measurements, but what the eye sees.

Wind, rain, hail

0–19Everything stays where it is.calm

20–37Free-standing awnings retract.Class 1

38–48Guided blinds retract too.Class 2

ab 49Everything closes. The motor locks out until released.Class 3

The classes come from the European standard EN 13659 for shutters and awnings. Which class a product reaches is stated in its declaration of performance — we choose it for your location, not from a catalogue page.

Tool