What is the drain pipe made of please?

@Joseph Corlett, LLC Copper

Here you go.

@Joseph Corlett, LLC Can this be used for the water pipes also?

HU:

No, to avoid soldering supply lines, you'd use a Sharkbite.

Because the OP said the problem was "my drain hose barely reaches and is bending and kinking?"

If the problem is only with the washer's drain hose, why not buy one of the readily-available off-the shelf drain hose extensions? Inexpensive, designed for this very kind of situation, needs only a screwdriver to connect, can be cut-to length, and avoids messing with the in-wall copper plumbing as well as not requiring cutting and patching the drywall.

ETA: Of course, the the OP didn't identify the washer model. While the majority of washers made for the North American market have drain pumps rated to reach up to 96-inches high, some top load washers and some front load washers have drain pumps with more limited reach. The Miele W-1 models and the Bosch compacts, for example, are limited to standpipes no taller than 40 inches above floor level. Another example, IIRC, is one of the Speed Queen TL models whose manual prescribes a standpipe height of something like 38 inches or less. Best check user guide and/or install instructions for your washer before heading to the hardware store for a drain hose extension.

Extending the machine's drain hose surely is a viable solution and it'd be much less cost than revising the plumbing. There may be a height-limit on how high the machine's pump can push the drain water but sounds like the extension doesn't need to be much being that the existing hose "barely reaches" but apparently is reaching with problematic "bending and kinking." The hot and cold water supply hoses aren't mentioned as being a problem.

@dadoes We were just going to move the whole box down a few inches which would involve the water supplies and drain pipe.

I understand that is your thought ... but extending the machine's drain hose should be easier and avoid the expense and process of cutting and reattaching three plumbing lines to move the box. Your choice.

"Stax: "The hot and cold water supply hoses aren't mentioned as being a problem."

Nonsense!

The Thread Title is: "Can I move washing machine SUPPLY without soldering?"

Seems nary a soul bothered to actually read the OP and Title. lol"

"OP: The previous home owners moved the laundry area from inside the house to opposite wall in the garage. Basically it seems they cut a whole in the garage wall and put the outlet box on the adjacent side. Problem is the ground in the garage is around 8" lower than the home so the washer is much lower than the supply box and my drain hose barely reaches and is bending and kinking."

I am reasonably interpreting the terminology "supply" in the post title as referring to the utility box as a whole. The OP's text refers to the drain hose presenting as the problem ("my drain hose barely reaches and is bending and kinking"). Nothing specific is stated about the hot and/or cold water hoses, which typically are attached to the machine at a higher point near the top than the drain hose that typically is located at a lower corner, so the hot/cold hoses typically don't have as long of a reach to the taps as the drain hose does to the standpipe.

Perhaps the OP will respond with clarification.

"Extending the machine's drain hose surely is a viable solution and it'd be much less cost than revising the plumbing."

If you can meet code and the appliance manufacturer's specifications, extending is fine:

Crimney...

The OP clarified just above to say, "We were just going to move the whole box down a few inches which would involve the water supplies and drain pipe."

"Stax: Crimney...

The OP clarified just above to say, 'We were just going to move the whole box down a few inches which would involve the water supplies and drain pipe.'"

Yes, of course moving the utility box will involve reconfiguring all three pipes in the wall ... hot water, cold water, and the drain standpipe ... being that all three are integral to the utility box. That doesn't mean the OP is having a problem with the machine's hot and cold water hoses. ONLY the drain hose is stated as being a problem.

And THAT is the source of the suggestion to extend the length of the washer's drain hose to avoid the expense and ruckus of moving the in-wall utility box.

You still don't get it... lol

The Floor height which the OP mentions as part of the problem means that the water supply plus discharge hoses combined are now too short. For some reason, the OP talks about cutting hard pipe and adding hard pipe. Likely either hose(s) being replaced with longer would solve.

You frequently don't read the FQ and thus produce bogus answers - the OP has been of virtually no help, go tackle him/her!

@Stax I certainly didn't mean to be of no help 🤷‍. Drain hose reaching is a stretch. Water hoses reach. Was told by appliance store we could not extend hose to needed length d/t washer age (mid 2000s). So we were going to move entire box down a few inches thus allowing some slack and allowing us more freedom in laundry area.

We went with threads suggestion and got a sharkbite.

Of course you did not mean to be unhelpful. Also, I see that Stax's initial post (the one to which I responded above) has been deleted. I mention this for future readers who may wonder what started the fuss in this thread.

As for the Sharkbite® couplers, I'll second Joseph Corlett's recommendation for using them to rejoin the cut down sections of the copper water supply lines. I think you'll be pleased with how easily and well they work for what you want to do. One additional small purchase (if you didn't already buy one) is to get one of Sharkbite's "Release Tools." Inexpensive and makes it much easier to disconnect the fittings should you need to further adjust or alter the copper water supply lines.

"HU-731177731: Water hoses reach."

Thanks for confirming that. :-)

What specific brand/model of washer is involved?