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Home » Step Stool Chair Plans (Easy DIY Project)

Step Stool Chair Plans (Easy DIY Project)

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step stool chair plans

Get easy DIY step stool chair plans to build your own versatile and functional furniture piece. Perfect for beginners and pros alike, with clear, detailed instructions.

step stool chair plans

Have you ever thought about building a wooden step stool yourself? Perhaps you’ve pictured a basic two pieces of wood with a platform across it . . . but let me “kick that up a notch” for you.

I’m going to encourage you to go outside the box a bit and build a DIY wood step stool that also doubles as a chair for a little one.

This DIY step stool is perfect if you have tall cabinets like we do in the kitchen, or if you want something fun for your children’s room that they can use to reach books and sit in.

What I love about this step stool is that it looks good for adult purposes, and then works in a nursery as well. It’s a pretty simple woodworking project, so let’s get started.

step stool chair combo plansstep stool chair combo plans

Gather These Supplies

  • (2) pieces of 1/2” thick 24” x 48” MDF (you really only need 1 1/2 pieces, see cut diagrams, but we got two pieces because they were sold that way and in case of mistakes)
  • (1) piece of 1” thick interior stair tread
  • Wood glue – we used Titebond III
  • Paint and primer in one (we used white)
  • Paint roller
  • Mineral oil with wax in it
  • 120-grit sanding block and sandpaper
  • Round lid (like a spray paint can lid)
  • Pencil
  • Ruler

Tools

  • Table saw
  • Drill
  • 1” wood boring drill bit
  • Jig saw
  • Wood clamps
Wooden stool cut diagram AWooden stool cut diagram A
Wooden stool cut diagram BWooden stool cut diagram B

CUT LIST

  • Out of your 1/2″ thick MDF (you can organize the cuts as shown above on the two pieces):
    • Three (3) pieces – (1) 17”x 18” and (2) 13 1/2” x 18”
    • Six (6) pieces – (2) 5 1/2” x 8”, (2) 8” x 10 1/2”,  and (2) 8” x 16”
  • Interior stair tread, cut two pieces: one (1) 11 1/2” x 17” and one (1) 6 1/2” x 17”

Tip: before gluing the stair treads in place we used a mineral oil with wax formula to protect the steps on the stool.

DIY wood step stool that doubles as a small chairDIY wood step stool that doubles as a small chair

Your wooden step stool is ready to roll! As you can see, it’s a stool . . . . but then you flip it over . . .

step stool chair combo plansstep stool chair combo plans

And it’s a chair. For a small bum (not mine). If you have felt you can place it on the top and bottom to protect your wood floors – we’ll leave that up to you. If you use these step stool chair plans let us know in the comments!

Prep Time
1 hour

Active Time
3 hours

Total Time
4 hours

Difficulty
Intermediate

Estimated Cost
$20

Materials

  • (2) pieces of 1/2” thick 24” x 48” MDF
  • (1) piece of 1” thick interior stair tread
  • Wood glue
  • Paint and primer – white
  • Paint roller
  • Mineral oil with wax
  • 120-grit sanding block and sandpaper
  • Round lid
  • Pencil

Tools

  • Ruler
  • Table saw
  • Drill
  • 1” wood boring drill bit
  • Jigsaw
  • Wood clamps
  • Paintbrushes

Instructions

  1. Using a table saw, cut three (3) pieces of 1/2” thick MDF – one (1) 17”x 18” and two (2) 13 1/2” x 18”.Three pieces of MDF cut with a table sawThree pieces of MDF cut with a table saw
  2. Using a table saw, cut six (6) pieces of 1/2” thick MDF – two (2) 5 1/2” x 8”, two (2) 8” x 10 1/2”,  and two (2) 8” x 16”.Six-pieces-of-MDF-cut-with-a-table-sawSix-pieces-of-MDF-cut-with-a-table-saw
  3. Using a table saw, cut two (2) pieces from your interior stair tread. Cut one (1) piece 11 1/2” x 17” and one (1) 6 1/2” x 17”.Two pieces of interior stair tread cut with a table sawTwo pieces of interior stair tread cut with a table saw
  4. Use a round object to draw a round pencil mark the top front corners of your (2) 13 1/2” x 18” MDF pieces. These will be the side pieces of your stool.Tracing a spray paint cap with a pencil to make a round edgeTracing a spray paint cap with a pencil to make a round edge
  5. Use a jigsaw to round off the corners. Use the sanding block to smooth the edges.Two MDF pieces with corners rounded with a jigsawTwo MDF pieces with corners rounded with a jigsaw
  6. At the rounded corners, use a pencil to put two dots 1 1/2” from the top edge. One is at 1 3/4” from the front edge and the second is 4 3/4” in from the front edge.Placing dots on the mdf with w ruler and a pencilPlacing dots on the mdf with w ruler and a pencil
  7. Using a 1” drill bit (and using the dot as center guides), drill two holes. Repeat with the other piece of the same size.Drilling a hole into MDF with a one inch drill bitDrilling a hole into MDF with a one inch drill bit
  8. Draw straight lines connecting the two round holes using your pencil and ruler. Use a jigsaw to cut on those lines and form the handle.Pencil lines drawn on MDF to connect the holesPencil lines drawn on MDF to connect the holes
  9. Sand with 120-grit sandpaper to make the edges smooth.Handle cut out of MDF using a jig sawHandle cut out of MDF using a jig saw
  10. Take the 17”x 18” piece of MDF and glue the two pieces of 8”x 16” MDF to it. Glue one of the pieces flush with a 17″ side, leaving a 1/2” gap on both sides. Then give a 1” gap above that and glue the next board, leaving a 1/2” gap on each side and a 1” gap at the top.Two smaller pieces of MDF glued to a larger pieceTwo smaller pieces of MDF glued to a larger piece
  11. On each side, glue one piece of the 8″ x 10 1/2″ MDF flush with the bottom and 1/2″ from the non-handle side (the back of the stool). Then glue one piece of the 5 1/2″ x 8″ MDF 1 inch above the bottom piece you just glued down . . . leaving 1/2″ gap from the non-handle side (the back of the stool). Each side needs to be the reverse of the other.Support pieces glued to the sides with handlesSupport pieces glued to the sides with handles
  12. Prime and paint both side pieces as well as the back piece. I used paint and primer in one, with a roller.Painted white pieces of MDF laying on a work benchPainted white pieces of MDF laying on a work bench
  13. Glue the larger stair tread into the bottom 1” gap on your back piece. The stair tread should go edge to edge on the back piece.Stair tread glued to the back piece of the stoolStair tread glued to the back piece of the stool
  14. Glue your sides on and glue the top stair tread in place.Gluing the sides of the stool with wood glueGluing the sides of the stool with wood glue
  15. Clamp, letting the glue set and dry for at least 24 hours before using.glue your sides on and glue the top stair tread in place and clamp, letting the glue set and dry for at least 24 hoursglue your sides on and glue the top stair tread in place and clamp, letting the glue set and dry for at least 24 hours

Notes

CUT LIST

Out of your 1/2″ thick MDF (you can organize the cuts as shown above on the two pieces):

  • Three (3) pieces – (1) 17”x 18” and (2) 13 1/2” x 18”
  • Six (6) pieces – (2) 5 1/2” x 8”, (2) 8” x 10 1/2”,  and (2) 8” x 16”
  • Interior stair tread, cut two pieces: one (1) 11 1/2” x 17” and one (1) 6 1/2” x 17”


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For more DIY furniture projects, click here. I’d also love for you to check out these other beginner projects:

Coffee Table • Coffee Table with Storage • Industrial Pipe Shelving • Lack Endtable Hack • Mirror Frame • Modern Headboard • Nolmyra Chair Hack • Outdoor Bench • Pallet Shelf • Platform Bed • Poster Hanger • Stacked Wood Bench • Table Lamp • Table Revamp with Vinyl • TV Riser • Wood Doormat