Create a curtain for this utility closet?

Can you use a rounded shower curtain rod?

Since it such an odd shape why not use velcro and make a piece to fit that shape. You could use cardboard or paper sacks to make a template of the space and go from there. If you use velcro if you want to take it down no big deal which would make the fabric much easier to keep clean.

What if you cut pieces of wood and attached it with hinges?

Make the triangular shape covering and attach at the bottom with a curtain rod or tension rod then attach the top with a hook and eye. If the material is very heavy the weight could be distributed with several hook and eye sites.

You could velcro fabric to the sides to easily remove it

For a permanent solution, I would suggest plantation shutters. They can be custom-made to fit any triangular shaped windows, or framed openings, which you have. Shutters would allow for air flow, would be maintenance free, and would be easy to open and close to allow accessibility to the interior space.

I would make two doors out of plywood and 1X2's . One door where the heater is and one door for the area behind the heater. Attach hinges for the big door to the tall post and the small door to the support by the heater. Paint, stain, upholster the doors. Eye hooks to keep the doors closed.

I would just plead fabric over a tape and nail in on the landing

You could screw in hooks to the 2 x 4s and then use the hooks to hang your curtain from.

This tutorial shows how to use eye hooks to use a curtain to hide your underneath stair area l

One word...Velcro. Fashion your fabric piece and attach it with Velcro. This way you can open it just a little to take something out, or completely When the need arises.

Hello Angie,

You could make a template of the area and cut out the shape from fabric allowing for hems. You could then use curtain wires and hooks to secure or use Cleats and rings like on a sail. Hope that helps.

I could not make it a full curtain, rather, a flat cover cut exactly to this shape. Use a duct fabric, heavier than most. Use a staple gun on it to each of those stairs and on the upper portion of the straight vertical side on the right. Or, you could velcro strip it all around.

Make a triangular curtain and attach it with heavy duty velcro. This way you will still have a way to get into the area. I would buy a heavy duty fabric from JoAnns or Hobby Lobby, be sure to use the coupon for 40% off.

You could use a drop cloth, cut the shape and staple it along the stair. That way it’ll be loose on the right but keep the shape.

I would use painter's cloths easy to hang and use as curtain -

https://www.youtube.com/watch?v=RUnnx19PH9Y

Have you thought of getting a piece of lattice or pegboard? Cut it, build a frame to fit the area and put hinges on the long side.

In my opinion it would be dangerous to use a curtain to enclose the water heater and also you should not store anything around a water heater. When we were trying to cover up our furnace and water heater in our basement we decided to use vented doors.

Could you staple it to the diagonal side and maybe have velcro strips on the vertical side?

Cut out the shape leaving enough are for a hem. Add velcro dots to the staircase side and the underside of material on that side matching like a buttonhole and button. Then use larger ones on the wood to the right. You can do the same with a thin piece of plywood. Easy on easy off.