How to Make a Box Cushion with Seamed Corners

Make your own box cushion with seamed boxing following this tutorial. This technique is the tried and true traditional way a cushion is made by using a top and bottom plate of fabric and cutting separate boxing pieces which are seamed together at each corner. Making a cushion like this means it can be made to almost any shape and size and a piping can be added, if desired. It also makes it possible to line up patterned fabric so it runs along the front to back side with patterns perfectly matched up, if desired.
Fabric Calculator Link: www.fabric-calculator.com/box...
Seven Ways to Build a Cushion Playlist: • Selecting the Right Cu...
Cushion Making Flowchart Guide PDF: www.sailrite.com/Cushion_Sele...
Using Calculator & Cutting Plates - 1:20
Cutting Boxing to Size - 3:57
Sewing Zipper Plaque - 7:06
Sewing Boxing Ends Together - 12:50
Making Custom Piping (Optional) - 15:08
Basting & Sewing Boxing to Plate - 19:06
Adding Piping to Plate - 22:48
Sewing Assembly to Final Plate - 26:13
Cutting Foam to Size - 31:06
Inserting Foam in Cover - 32:01
Materials & Tools List - 34:17
THE KEY FACTS WHEN MAKING THE TRADITIONAL BOX CUSHION WITH SEAMED CORNERS:
• Moderate complexity and construction time.
• Can be a square, rectangular or irregularly shaped cushion.
• Fabric is cut separately for each side of foam (top, bottom and sides).
• Piping can be used for the top and/or bottom edges, or neither.
• A zipper is installed in the back boxing.
• All boxing pieces are seamed together at corners.
• Bottom can be decorative fabric or be a less expensive cushion
underlining fabric.
• Flippable if decorative fabric is used on bottom and shape allows.
• Pattern matching is possible with effort, except side boxing.
• Can be made to include a curved or wedge edge (email: [e-mail]
for other tutorial videos which include those features).
Materials List:
Outdura® Jinga Nautical 54" Upholstery Fabric (213J) - SKU: 124761 www.sailrite.com/Fabrics/Bran...
Lenzip® #5 Black Continuous Coil Zipper Chain - SKU: 124596 www.sailrite.com/Lenzip-5-Bla...
Seamstick 1/4" Basting Tape for Canvas & Upholstery (36 yds.) - SKU: 122065 www.sailrite.com/Seamstick-1-...
Tex 70 to 75 Thread from Sailrite www.sailrite.com/Notions/Thre...
Lenzip® #5 Black Single Locking Metal Zipper Pull (Coil Chain) - SKU: 124600 www.sailrite.com/Lenzip-5-Bla...
Medium 5/32" Welting Cord - SKU: 107035 www.sailrite.com/Medium-5-32-...
CushionRite® Premium Foam - we used (Medium) - SKU: 124234 www.sailrite.com/Foam-and-Pil...
Tools List:
Clear Acrylic Ruler 6" x 24" - SKU: 102400 www.sailrite.com/Clear-Acryli...
Chalk Pen White - SKU: 123131 www.sailrite.com/Chalk-Pen-White
Sailrite® Tempered Cutting Glass - SKU: 121915 www.sailrite.com/Tempered-Cut...
Sailrite® Edge Cordless Hotknife 18V Package - SKU: 122177 www.sailrite.com/Sailrite-Edg...
Gingher® 8" Scissors Right Handed - SKU: 19104 www.sailrite.com/Gingher-Scis...
Sailrite® Ultrafeed® LSZ Walking Foot Sewing Machine (110V) - SKU: 311602 www.sailrite.com/Sailrite-Ult...
Sailrite® Ultrafeed® Industrial Sewing Table - SKU: 120934 www.sailrite.com/Sailrite-Ult...
Magnetic Sewing Guide - SKU: 102983 www.sailrite.com/Magnetic-Sew...
Multiuse Pins 1-1/2" (250 pack) - SKU: 102985 www.sailrite.com/Multi-Use-Pi...
Sailrite® Blade Foam Saw V2 with Carrying Case (110V) - SKU: 121244 www.sailrite.com/Sailrite-Bla...
Straightedge, Marker

[@race7347]

Thank you for a terrific instructional video!! Great video, editing and content! I wish all instructional videos were as good as yours. Thank you!!!

[@SailriteDIY]

Thank you for the lovely compliments. I'm thrilled that you enjoyed the video and found it helpful. Stay tuned for more content!

[@tributetomama]

You do the best tutorials. Thank you.

[@SailriteDIY]

Aw, shucks! I guess I'll have to keep making more tutorials then. Can't let my fans down!

[@TheJaniebabe]

I wish I watched this before I made the 30min box cushion cover, I love the flap to hide the zipper pull, I would have added that. Thanks so much for posting.

[@SailriteDIY]

I'm glad you found the tip about adding a flap helpful! It's always great to learn new techniques to improve our projects. Thanks for watching!

[@From_Refugee_To_Yacht_Owner]

I’m always learning something new. I got my machine soon I’ll be starting my first project.
Thanks for Sharing.❤

[@SailriteDIY]

That's awesome! Learning new things and starting new projects is always exciting. Good luck with your first project!

[@user-em1ug4lj7q]

شكرا على الشرح المفصل انت انسان رايع

[@bobbinsew]

I wish I’d had Seamstick when I worked for an upholsterer about 30 years ago for all the Dralon piped cushions!

[@SailriteDIY]

It's amazing how new products can make our lives so much easier, right? Seamstick would have definitely saved you a lot of time and effort back then!

[@AbdaTur-fm2dv]

your are doing agreat job man! I thank you ❤

[@SailriteDIY]

Thank you for your support and encouragement! It's viewers like you who keep me motivated to create more content.

[@mariaalejandradiaz1975]

I've lerned so mach watching your vídeos!❤ I hope I could buy a machine from Argentina some time!

[@SailriteDIY]

Thank you so much for your kind words! I'm glad to hear that my videos have been helpful to you. I hope you're able to buy a machine from Argentina soon!

[@JaYoeNation]

If you are sewing 0.5 inch seams on all sides... shouldn't the material be 1 inch in all directions to accommodate the 0.5 + 0.5 seams on all sides? I just sewed my first cushion following all the instructions and it came out too thin and small... am I missing something?

[@SailriteDIY]

We actually want the cover fabric to compress the foam for a nice tight fit without wrinkles. That is why we make the top and bottom plate the same size as the foam and the boxing just 1/2" wider than the thickness of the foam. Yes, when you sew the 1/2" seam allowance the top and even the sides will be smaller to compress the foam. If you do not want it as large just add 1/4" more to all sides of the top plate.

[@JaYoeNation]

thanks! yea i was really rigid on my final sizing... i was going to add a layer of thick batting to give me some more thickness in the final cusion. I remade the cushion by adding 0.5 more to the dimensions before putting them in the calculator and it put out what i needed...
thanks again!@@SailriteDIY

[@KarenEverhart-js3tf]

X

[@SailriteDIY]

How can I help you "X"?

[@BUY_YOUTUBE_VIEWS_e0e75]

WE LOVE YOU 🫶🫶

[@SailriteDIY]

Thank you so much for your love and support! It means the world to us.