Today: Determining Queeny's cushion sizes, sizing and cutting dinette cushion top plates and boxing strips.
Our comfy seating at the dinette is the main goal of our cushion fit. In other words, the cushion thickness determination was first. More is better right?
We had pulled covers off the foam pads we got out of the kid's Skamper Camper. Some were worse than others - like the one with the cigarette burn. And while the covers had some "durability" built into the cover layers (like a thin foam quilted layer inside the outside surface layer), they were the wrong color - blue - and the wrong size. Of COURSE we would replace them. But thickness? The pads were 3".
Unless it's an extremely "firm" foam, 3" gets compressed pretty quick and your butt is on hard flat surface beneath. Naw. What about 4". Yeah 4" - that's the ticket! See the bed mattress is 5", and 5" at the dinette might be thick cushy, but get too thick and the seat backs start pushing you off the edge. There's a limit. Picture 12" cushions. Nice and comfy, but you're pushed way forward to the seat edge. Edge sitting is one of the WORST factors in the "comfy equation".
Yeah we chose 4".
We had DGS overnight this past weekend. He was helping GMA get something out of the garage fridge for dinner and I was inside the house. DW apparently showed him "his bed" in Lil' Queeny (the dinette), which is probably accurate. I don't really see anyone beyond him ever using that bed, unless it's DW in our old age. I can't fit on it myself.
But DGS came in from the garage all excited and talking about how comfy his bed will be (he crawled up on the poly covered foams).
And BTW, we all watched the Netflix video "Undercover Grandpa", rated PG13 I think. Just a little juvenile, but Oh My Gravy! - That was a funny show for any of us Grandpa types, especially if you have a grandson, say between 7 and 18 years old, to watch it with. Hilarious!
But the cushion thickness of 4" seems to be the right choice.
Now the next sizing issue is the width/length. We all know the cover will compress the foam somewhat, right? And when you place the dinette cushions down into bed mode, you want a compressed fit, nice and tight, so your elbows, knees or hips don't weedle the cushions apart and leave you trying to get comfy on the hard board beneath. So you size larger. But how MUCH larger you ask? I'm glad you asked!
I had to do my "graph paper" thing to decide. Let's start with the bed length, shown here as 75". In essence, the length of a twin, double, or "camper queen" bed. But upon detailed measuring the other day, I discovered it is actually 74 3/4". I'll explain why that matters in a minute.
And the bed width? 38". Yeah I know, a twin is 40". But we're not using a bed width slide-out board, and there's the whole truck cab to camper wall window width to think about, so 38".
And then you divide the bed length total into your cushion sizes to obtain appropriate puzzle pieces. We got 21" x 38" then for the seat bottoms, (19" x 34" for the u-shape connector seat bottom), and 15" x 38" for the seat backs. That combo, in conjunction with the 4" thickness, allows for a surprisingly configurable bed makeup.
For instance, put the u-shape seat bottom connector (less wide at 34") in play as a head board (camper box front wall) and that makes the bed length 4" shorter, because it is a thick headboard, right? Now your bed is only 71" long (plenty for a young GS). Then the other pieces: 21"x2+15"x2+4"=76". 76" squeezed into the 75" of space, makes for a nice tight fit that hips find it hard to work down through.
Or you can use that odd lengthed 34" connector cushion in the bed surface, with the other cushions shifted into position, except one seat back still on the top of the bed, for a head board (or moved completely out to get a full 75" of sleeping length) and in that equation you get 21"x2+15"+19"=76" - again, a nice tight fit into the 75" space.
So there was some finagling to reach our foam sizes. Then we ordered.
AFTER we received the cushions, I came across this instruction from that guy I like at Sailrite? Where he says
about half way down under the SECOND heading "Seam Allowances", to make your foam cushions 1/2" larger all the way around than your finished size. Whoops!
So as an example, my 21" cushion should have been 22".
But these cushions seemed plenty tight, probably in part due to the poly wrap, which was also explained as "not considered" for sizing.
And the whole reason I'm even bringing some of this up is because NOW I had to "use what I got", instead of ordering based on what I have. That's okay - regroup right?
To make the cushion's top plate (the top surface - I don't need a bottom plate because I'm doing a different attachment method of the cover to the plywood seat base), I'm supposed to cut it to the size of the foam, which is supposed to be 1/2" larger all the way around (which mine is less than that), so that when you sew in a 1/2" seam allowance all around the plate (to the boxing strips - or height of the cushions) it will size down the top plate's dimension by one inch in both directions, compressing that foam by one inch both ways (1/2" all the way around) giving you a nice tight fit that doesn't just keep the fabric stretched, but also compresses the foam enough that it over-all feels firmer. More like a seat, and less like a pillow. Makes sense to me!
But I was behind the power curve; my foams were smaller than that rule. So I confused myself with the measuring tape and the size available and the cushions dimensions and the calculator, and came up with this.
The front note - called Top Plates; ignore the "boxing note" for now. And you can see I went 3/4" larger than finished, instead of 1" (1/2" all around equals 1" by dimension). That was a compromise, so I didn't compress it too much, which might cause loose cushion fit on the bed length. Yeah, it was a small amount, but with several cushions involved, it all adds up. Just calculator work, trial and error. I sure HOPE I calculated right.
Now what about the Boxing? That's the strip which covers the cushion height (4") and back to the Sailrite link above (Seam Allowance) you add 1/2" (total then of 4 1/2"). Why not 1/2" all around? Making it 5" total? I don't know - but I surmise because it is a shorter overall finished distance (4") than is the top plate (15"-21"), so less squeeze is needed. I can see that - even if it is an assumption.
Now you can look at the Boxing note.
And that's a lot of narrative just to describe where I'm going to set the table saw fence to rip my material.
Oh wait! I was thinking plywood. I can't push this fabric through the saw blade!
Enter DW! She provided a cutter, cutting mat, square frame style rule, and a straight rule. In this picture you also see the scrap I'll use for the head rest cushion.
But the cutting mat is for small pieces. My larger plates, and longer boxing, didn't fit the scene real well; I went back to the sheet-rock tee and scissors.
After marking the back side to the "seam allowance" dimensions, I got this on the first one, the connector seat at the bottom of the u-shape.
Then I did the other four slightly larger plates (seat bottoms and backs) and set them all aside.
Next? The boxing strips. Again I found it best to measure and mark cut lines - then cut out. But now, the cutter wheel was used on the soft surface of the table top itself, made from a material very similar to the cutting mat. Cool!
After squaring up the starting edge, full length, in conjunction with the remaining fabric layout planned for bed cover, un-seamed boxing, mattress zipper plaque, etc. I got something like this.
Then I gathered it all up and set it all aside.
The next step is to attach the piping (like the beaded gimp throughout the camper) to the appropriate cover portions (I think both edges of the boxing), then attach THAT to the top plate, and to whatever I decide to use on the bottom edge for "staple attachment".
And once again, I have to go back onto the web site to learn those methods.
Now what with the learning, and the doing, and the upcoming holiday, and the fact that we're going to be getting into a "home remodeling" thing with the kids, cushion progress may see a bit of retreat for awhile.
But we'll be back sometime or another.