How to measure for a square bay window Square bay window It’s easy to measure for a square bay window; there are just 4 easy steps. What you’ll need • A tape measure – metal ones are best • A pencil and paper Before you begin First choose the blind type you would like to fit into your bay window, for example Vertical blinds. Different types of blind should not be mixed. Next read about exact and recess measurements here. Step 1 Measure window A first and write this down as a recess measurement. Mark where the front edge of the headrail would be when fitted, with a pencil. These vary by blind type (see table below). You will also need to take into account anything that protrudes from the window, such as handles and add this measurement on. For example when allowing 2cm for handles and choosing a standard Roman with 2.5cm headrail the measurement you’d mark would be 4.5cm from the window (2+2.5=4.5cm). Blind type Roller - 25mm barrel (for widths of blind under 2m) Roller - 36mm barrel (for widths of blind between 2m and 2.4m) Roller - 42mm barrel (for widths of blind over 2.4m) Roman – standard headrail Roman – deluxe headrail Vertical 89mm Vertical 127mm Pleated 20mm Woodweave Venetian 15mm Venetian 25mm Venetian 35mm Venetian 50mm Wood Venetian 25mm Wood Venetian 35mm Wood Venetian 50mm Headrail depth Blind type Headrail depth 4.8cm :RRG9HQHWLDQPPcm 6.7cm )DX[ZRRGPP )DX[ZRRGPPcm 8cm )DX[ZRRGPP8cm 2.5cm 4cm 8.5cm 10.5cm 2.1cm 6cm 3.5cm 3.5cm 5cm 5cm 5cm 5cm 7cm cm Step 2 Measure from the pencil mark you made to represent the front edge of headrail on window ‘A’, across window ‘B’ and write this down as an exact measurement. Step 3 Repeat step 2 for window ‘C’. (Note: if you have a ‘closed’ bay window i.e. you have a wall at the end of windows ‘B’ and ‘C’ opposite window ‘A’ you will need to take down the measurements for windows B and C as recess measurements). Step 4 Come back to www.web-blinds.com and order your blinds! Questions about measuring? Call us on 0845 604 9611 Email enquiries@web-blinds.com