Box Envelopes – Photo Tutorial


I have a photo tutorial for you today showing how I make box type envelopes for my dimensional cards that are too thick to put into a normal envelope so If you too love adding 3d flowers or big puffy bows to your cards, this could be a really handy envelope for you. I haven’t sent any cards through the post in one of these but it is a protective way to house a card until it is handed to its recipient. I will walk you through my favourite size which is 6 inches square and half an inch deep then at the end I will share the measurements I use for other sizes/depths.

Equipment: (Use whatever suitable alternatives you have on hand)

300 gsm Card Stock

Martha Stewart Score Board

An embossing Stylus

Red Liner Tape


Bone Folder

pic 1: Place the envelope maker (the triangular bit) onto your score board. As I am making an envelope for a 6 inch card I cut my card to 11 inches square, this size means that the card overhangs the score board but this is fine.

box envelope 1

pic 2: Score down your card at the 4 and an eighth inch mark on the envelope maker.

box envelope 2

pic 3: Keeping your card in the same place, score your card again at the 4 and five eighths inch mark, this gives you the depth of your box envelope. Turn your card and score all 4 sides in the same way.

box envelope 3

pic 4: I’ve marked the area to cut away from the top 2 intersecting sections.

box envelope 4

pic 5: I’ve marked the area to cut away from the bottom 2 intersecting sections.

box envelope 5

pic 6: This is how it should look after you’ve cut these sections away.

box envelope 6

pic 7: I’ve marked the line to cut in the bottom 2 corner sections to create tabs.

box envelope 7

pic 8: This is how your tabs should look.

box envelope 8

pic 9: Add some strong tape to the 2 tabs and the points of both side panels as shown.

box envelope 9

pic 10: Remove the liner from the tape and form the envelope, you may need to pop your bone folder inside to help the tabs stick down.

box envelope 10

pic 11: I dug out the most dimensional card I could find in my stash and it fits just fine.

box envelope 11

pic 12: I use some clear adhesive stickers to close my box envelopes but you could tie a ribbon around it and decorate to your hearts content :)

box envelope 12

Measurements for 6 Inch Square Box Envelopes:

Card Stock Size = 11″ x 11″

1/2″ Deep Sides – Score at 4 1/8″ and 4 5/8″

3/4″ Deep Sides – Score at 3 7/8″ and 4 5/8″

Measurements for 5 Inch Square Box Envelopes:

Card Stock Size = 9 3/8″ x 9 3/8″

1/2″ Deep Sides – Score at 3 1/2″ and 4″

3/4″ Deep Sides – Score at 3 1/4″ and 4″


I hope this is easy enough to follow, my craft table is a little cramped but I tried to make it as clear as I could and I will make a video version when I have my new craft room, you can wait til early next year, right? ;)

23 thoughts on “Box Envelopes – Photo Tutorial

  1. NancyS (momsnack)

    Excellent tutorial!! Now my bulky cards won’t get squashed.
    Have you worked out the dimensions for standard rectangular envelopes?
    Thanks so much!!

    1. Bird Post author

      No I’ve not done those yet as here in the UK we have a different standard card size to America so I thought it would be nice to start with square cards that everyone can use :) I will get around to doing other sizes including rectangles though :)

  2. Deb

    Thank you so much for this! I’ve been buying boxes at the Dollar Tree store up until now but that adds expense not just for the box but for extra weight in postage as well, plus I have to cover the boxes to make them pretty. All in all not a great way to go so this will truely be helpful. Really appreciate all the info you give us in your posts.

  3. Laurie

    I made one of your cards last week for my mom to give her closest friend. Of course it wouldn’t fit in an envelope because of the gorgeous flowers. So yesterday morning I sat down to decide what I was going to put it in. Finally just got out my old Allene’s box maker and made a box. So when I opened your email today and saw the content, I just had to giggle to myself. Thanks again for a great tutorial!

  4. SiskiyouSue

    Thank you for the tutorial. I’ve made envelopes, but sometimes have had with the folds tearing open. I suspect I’m using a cardstock that is too thick, any ideas?

  5. April

    Oh you are a lifesaver!!!! Thank you so much. I just sent a card and had to buy a box to mail it. Paid more for the box than the postage. It is going to be nice to make my own.

  6. txgrandma

    What a great idea. I’ve thought of this but never actually tried to do it. You took the hard work out of it for us. Thanks!

  7. Paula Gale

    this is a great tutorial – the results are brilliant. I have one of those score boards which I didn’t get on with – its brand new (for sale if anyone interested) lol…

    The card you are putting in the box is a stunner too.

    Thank you for taking your time out to pass on this information – looks like it will save some a lot of money!

    Kind regards

    Paula x x x

  8. Judith

    I recently bought the MS board and this post will be very usefull. Thank you so much for sharing your expertise with us all.
    Look forward to video tutorials from your new dedicated craft room.
    Good luck with your move!

  9. Betsy

    Thank you so much for all of your wonderful tutorials, cuts, etc. Is there a cutting file for the envelope box? I couldn’t find a link.

  10. Pumpy

    Thanks you very much for the most beautiful Freebies, they are lovely. xxx I will leave you a tip with the greatest of pleasure, I know you are not asking for one. xxx

  11. Sarah

    Need a tutorial to make a box envelope for a 5 x 7 card for a wedding gift. Hoping a 12 x 12 sheet of cardstock will be large enough for the box envelope. Please respond!

  12. elizabeth

    im having trouble doing odd sizes like 5×7 card.can you get the measurements for me?thanks so much!

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