IKEA Trippevals - Extending length and shortening width 

Thanks for the video! After watching it, we decided on this model as well, made the same adjustments and it all turned out great! We wouldn't have considered it otherwise since Ikea doesn't advertise the product as adjustable to different window lengths. You rock!

Thank you so much! We just bought these and had an uh oh, we can't modify them moment, but thanks to your video, this worked. $350 for 4 large windows vs $1800 for custom. People need to know they can do this. Also, next time, use a mitre saw and use green painter's tape all the way around the edge you're cutting, it slices through both the metal and the fabric smoothly every time with no fray (and much less effort).

Great video, information helped out a lot. Thank You!

these blinds really are worth modifying aren't they? here in california they are amazing at keeping out heat! this a brilliant mod - THANKS!

Just wanted to say again that the video tutorial was very helpful! I finally mustered the courage to do it for the nursery as well as using an electric drill for the first time. My window frame was 150cm wide so I used 2 x 80cm blinds and cut 4.5cm off each blind. It was a tight fit but I managed to fit it in by not putting back one of the plastic end caps at the top. Not having the plastic end cap wasn't noticeable. Next time I would allow for a 1cm gap and use a non-coloured hacksaw blade (the blue colour rubbed off a bit onto the edge of the blinds).

Great information. Thanks.

great video!!!!!!

Thanks!

Clever 🎉

Thanks. Toying with using these myself, however I can't hide the cut ends due to the window design.

Thanks for the video. You have inspired me to give it ago :) If it’s any assistance to anyone else, a sharp knife seems to work better on the honeycomb section. I had the light filtering type. Also top section is aluminium and bottom bar is steel. I cut both with angle grinder with cutoff wheel. Mine I couldn’t really lengthen that much, when fully extended the pulleys are at the end, so it’s only a maybe 5cm. Can’t length string with a knot, it’s too big. Had to melt/pull though new string, but can only get maybe 25cm more. Was just enough to work. Bit of a task, but got there in the end :)

This is fantastic! What are the screws at the sides in the window framme foor? I see that you have the original clips mounted which hold the blanks. But didn't get the part regarding the screws from the sides

thanks for the video. My windows are 85cm wide and the closest one available I see is 100cm wide. Do you reckon there is enough room to trim it by 15cm? I see you mention about 10cm, but wanted to be sure if there some additional room or maybe if I trim both the sides? Thanks again!

David, thank you for the demonstration. Do you think it is easier or harder if I use a jigsaw to cut the excessive length? Thank you for your comment.

Great video tutorial! How much of a difference in temperature do you think it makes using cellular blinds?

can they be mounted on the wall above the window as well? yours is inside the window frame, i cant mount it inside the window frame only above it

Perhaps a daft question, but how much extension do you think you could achieve on the length? The non-blockout Hoppvalls are just not long enough for old, tall windows!

What blade for a 10 inch miter saw if we wanted to go that route?

Can you retract it all the way up and it stay up?