Need a cushion that folds up for easy storage or to gain access to a hatch storage unit under the cushion? Watch this tutorial and sew your own cushion with an incorporated folding hinge. Make any size and thickness of a rectangular shaped cushion following this step by step tutorial.

Intro – 0:00
Measuring & Cutting Foam – 0:55
Cutting Top Plate – 5:28
Cutting Two Bottom Plates – 12:21
Measuring & Cutting Boxing – 16:04
Sewing Zippers in Bottom Plates – 20:20
Sewing Boxing Ends Together – 28:44
Basting & Sewing Boxing to Bottom Plates – 36:06
Sewing Assembly to Top Plate – 46:44
Sewing Top Stitch on Top Plate and Hinge Boxing – 52:26
Installing Snaps (Optional) – 58:47
Inserting Foam -1:01:45
Securing to Bench with SNADs® - 1:03:29
Materials & Tools List – 1:04:53

Materials List:
CushionRite® Flotation Antimicrobial Foam (Extra Firm) - SKU: 124250 https://www.sailrite.com/CushionRite-...
Premium Outdoor Fabric from Sailrite - we used Sunbrella® Cabana Classic 54" Upholstery Fabric - SKU: 58030-0000 https://www.sailrite.com/Fabrics/Outd...
Seamstick 1/4" Basting Tape for Canvas & Upholstery (36 yds.) - SKU: 122065 https://www.sailrite.com/Seamstick-1-...
Gütermann Tera 60 Tex 50 White Polyester Thread 1 oz. (656 yds.) - SKU: 125183 https://www.sailrite.com/Gutermann-Te....
Lenzip® #5 Black Continuous Coil Zipper Chain - SKU: 124596 https://www.sailrite.com/Lenzip-5-Bla...
Lenzip® #5 Black Style A Single Locking Metal Zipper Pull (Coil Chain) - SKU: 124600 https://www.sailrite.com/Lenzip-5-Bla...
Shelter-Rite® White Fabric Sample - SKU: 112011S https://www.sailrite.com/Shelter-Rite...
DOT® Snap Fastener Button 11/64" (Nickel-Plated Brass) - SKU: 333777 https://www.sailrite.com/Snap-Fastene...
Sailrite® Snap Fastener Normal Action Socket (Nickel-Plated Brass) - SKU: 999050 https://www.sailrite.com/Sailrite-Sna...
YKK® SNAD® Fastener Adhesive-Backed Flexible Base Stud Clear 25mm - SKU: 104451 https://www.sailrite.com/YKK-SNAD-Cle...


Tools List:
3M™ General Trim Spray Adhesive 18.1 oz. - SKU: 73211 https://www.sailrite.com/3M-General-T...
Sailrite® Blade Foam Saw V2 with Carrying Case (110V) - SKU: 121244 https://www.sailrite.com/Sailrite-Bla...
Clear Acrylic Ruler 6" x 24" - SKU: 102400 https://www.sailrite.com/Clear-Acryli...
Scribe-All® Black Marking Pencil for Vinyl - SKU: 121977 https://www.sailrite.com/Scribe-All-W...
Sailrite® Tempered Cutting Glass - SKU: 121915 https://www.sailrite.com/Tempered-Cut...
Sailrite® Edge Cordless Hotknife 18V Package - SKU: 122177 https://www.sailrite.com/Sailrite-Edg...
Magnetic Sewing Guide - SKU: 102983 https://www.sailrite.com/Magnetic-Sew...
Sailrite® Ultrafeed® LSZ Walking Foot Sewing Machine (110V) - SKU: 311602 https://www.sailrite.com/Sailrite-Ult...
Sailrite® Ultrafeed® Industrial Sewing Table - SKU: 120934 https://www.sailrite.com/Sailrite-Ult...
Gingher® Scissors Right Hand Lightweight 8" - SKU: 101017 https://www.sailrite.com/Gingher-Scis...
Wipe Off Fabric Marker Blue - SKU: 123135 https://www.sailrite.com/Wipe-Off-Fab...
Sailrite® Scratch Awl - SKU: 123270 https://www.sailrite.com/Sailrite-Scr...
Multiuse Pins 1-1/2" (250 pack) - SKU: 102985
Sailrite® Drill Hole Cutter Set - SKU: 121825 https://www.sailrite.com/Sailrite-Dri...
Sailrite® Cutting Block & Die Holder - SKU: 121597
Sailrite® Snap Fastener Deluxe Installation Tool - SKU: 100949
3M™ Tape Primer 94 Adhesive Promoter Ampule - SKU: 120671
Marker, Mattet, Drill, Alcohol Prep Pad

- BUILD CALCULATIONS -
CUTTING FOAM TO SIZE:
Add 1/2” to both dimensions to the desired finished size of the cushion. (Basically that means you are adding ¼” to all sides of the foam).

CUTTING TOP PLATE TO SIZE:
Desired finished length + 1” = Cut length
Desired finished width/depth + 1/2” = Cut width/depth

CUTTING TWO BOTTOM PLATES TO SIZE:
Use the top plate as a template for the bottom plate (it will be almost the same size except for ½” added for seam allowance at the center).

BOXING WIDTH CUT SIZE:
CushionRite® Premium, Standard & Dry Fast: Foam thickness + 1/2” = Cut width
CushionRite® Flotation (Closed Cell): Foam thickness + 3/4” = Cut width

BOXING LENGTH CUT SIZE:
Boxing length should be the same length of each of the bottom plate’s edges.

CENTER HINGE BOXING WIDTH CUT SIZE:
Boxing cut width/height - 1” = A
(A x 2) + 1” = Cut width of center boxing